101978 (number)
101,978 (one hundred one thousand nine hundred seventyeight) is an even sixdigits composite number following 101977 and preceding 101979. In scientific notation, it is written as 1.01978 × 10^{5}. The sum of its digits is 26. It has a total of 2 prime factors and 4 positive divisors. There are 50,988 positive integers (up to 101978) that are relatively prime to 101978.
Basic properties
 Is Prime? No
 Number parity Even
 Number length 6
 Sum of Digits 26
 Digital Root 8
Name
Short name  101 thousand 978 

Full name  one hundred one thousand nine hundred seventyeight 
Notation
Scientific notation  1.01978 × 10^{5} 

Engineering notation  101.978 × 10^{3} 
Prime Factorization of 101978
Prime Factorization 2 × 50989
Composite numberω(n)  Distinct Factors  2  Total number of distinct prime factors 

Ω(n)  Total Factors  2  Total number of prime factors 
rad(n)  Radical  101978  Product of the distinct prime numbers 
λ(n)  Liouville Lambda  1  Returns the parity of Ω(n), such that λ(n) = (1)^{Ω(n)} 
μ(n)  Mobius Mu  1  Returns:

Λ(n)  Mangoldt function  0  Returns log(p) if n is a power p^{k} of any prime p (for any k >= 1), else returns 0 
The prime factorization of 101,978 is 2 × 50989. Since it has a total of 2 prime factors, 101,978 is a composite number.
Divisors of 101978
4 divisors
τ(n)  Total Divisors  4  Total number of the positive divisors of n 

σ(n)  Sum of Divisors  152970  Sum of all the positive divisors of n 
s(n)  Aliquot Sum  50992  Sum of the proper positive divisors of n 
A(n)  Arithmetic Mean  38242.5  Returns the sum of divisors (σ(n)) divided by the total number of divisors (τ(n)) 
G(n)  Geometric Mean  319.33994426003  Returns the nth root of the product of n divisors 
H(n)  Harmonic Mean  2.6666143688305  Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors 
The number 101,978 can be divided by 4 positive divisors (out of which 2 are even, and 2 are odd). The sum of these divisors (counting 101,978) is 152,970, the average is 3,824,2.5.
Other Arithmetic Functions (n = 101978)
φ(n)  Euler Totient  50988  Total number of positive integers not greater than n that are coprime to n 

λ(n)  Carmichael Lambda  50988  Smallest positive number such that a^{λ(n)} ≡ 1 (mod n) for all a coprime to n 
π(n)  Prime Pi  ≈ 9735  Total number of primes less than or equal to n 
r_{2}(n)  Sum of 2 squares  8  The number of ways n can be represented as the sum of 2 squares 
There are 50,988 positive integers (less than 101,978) that are coprime with 101,978. And there are approximately 9,735 prime numbers less than or equal to 101,978.
Divisibility of 101978
m  2  3  4  5  6  7  8  9 

n mod m  0  2  2  3  2  2  2  8 
The number 101,978 is divisible by 2.
Classification of 101978
By Arithmetic functions
 Semiprime
 Deficient
Expressible via specific sums
 Polite
By Powers
 Square Free
Base conversion (101978)
Base  System  Value 

2  Binary  11000111001011010 
3  Ternary  12011212222 
4  Quaternary  120321122 
5  Quinary  11230403 
6  Senary  2104042 
8  Octal  307132 
10  Decimal  101978 
12  Duodecimal  4b022 
16  Hexadecimal  18e5a 
20  Vigesimal  ceii 
36  Base36  26oq 
Basic calculations (n = 101978)
Multiplication
n×yn×2  203956 

n×3  305934 
n×4  407912 
n×5  509890 
Division
n÷yn÷2  50989.000 

n÷3  33992.666 
n÷4  25494.500 
n÷5  20395.600 
Exponentiation
n^{y}n^{2}  10399512484 

n^{3}  1060521484093352 
n^{4}  108149859904871850256 
n^{5}  11028906413379021545406368 
Nth Root
^{y}√n^{2}√n  319.33994426003 

^{3}√n  46.719927851424 
^{4}√n  17.87008517775 
^{5}√n  10.039250665277 
101978 as geometric shapes
Circle
Radius = nDiameter  203956 

Circumference  640746.67125556 
Area  32671032020.65 
Sphere
Radius = nVolume  4.4423020045358E+15 

Surface area  130684128082.6 
Circumference  640746.67125556 
Square
Length = nPerimeter  407912 

Area  10399512484 
Diagonal  144218.67066368 
Cube
Length = nSurface area  62397074904 

Volume  1060521484093352 
Space diagonal  176631.07725426 
Equilateral Triangle
Length = nPerimeter  305934 

Area  4503120999.0587 
Altitude  88315.538627129 
Triangular Pyramid
Length = nSurface area  18012483996.235 

Volume  1.2498365549941E+14 
Height  83264.688329848 
Cryptographic Hash Functions
md5  d2bcb26e9c093f01a9f632fd1ca8b6f7 

sha1  07433e27df7a5242d31b021f3c7fcafc77e99a48 
sha256  f17a8612028d5a0f2fbf1b21ca65f27efdd666f37b25d59e3675bd58c4fab867 
sha512  8e75a6fc250d96e8ecd18700bf69483c3718770695a4f35487102972dfe575148121adf7c6669865c012bacc64f73b952b6e539c0b5b717960d17f31a9ff9d99 
ripemd160  7fc2a5bc8fb922893932c4bef3b805d7bbd04e95 