81107908 (number)

81107908 is an even 8-digits composite number following 81107907 and preceding 81107909. In scientific notation, it is written as 8.1107908 × 10^7. The sum of its digits is 34. It has a total of 5 prime factors and 24 positive divisors. There are 34401024 positive integers (up to 81107908) that are relatively prime to 81107908.

Interesting facts

Basic properties

Name

Name eighty-one million one hundred seven thousand nine hundred eight

Notation

Scientific notation 8.1107908 × 10^7
Engineering notation 8.1107908 × 10^6

Prime Factorization of 81107908

Prime Factorization 2 × 2 × 7 × 97 × 29863

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 40553954
Product of the distinct prime numbers

The prime factorization of 81107908 is 2 × 2 × 7 × 97 × 29863. Since it has a total of 5 prime factors.

Most popular turbo-numbers

5, 9, 36, 20, 985, 319, 8287, 6366, 61426, 65793, 365452, 839172, 6101896, 9581445, 55509036, 62009130, 135542165, 995984738, 8344264359, 7256955207

Basic calculations (n = 81107908)

Multiplication

n×y
n×2 162215816
n×3 243323724
n×4 324431632
n×5 405539540

Division

n÷y
n÷2 40553954
n÷3 27035969.333333
n÷3 20276977
n÷5 16221581.6

Exponentiation

ny
n2 6578492740136464
n3 5.3356778394566E+23
n4 4.3276566732028E+31
n5 3.5100717930572E+39

Nth Root

y√n
2√n 9005.9928936237
3√n 432.86692196587
4√n 94.899909871526
5√n 38.177953088324

Divisors of 81107908

1, 2, 4, 7, 14, 28, 97, 194, 388, 679, 1358, 2716, 29863, 59726, 119452, 209041, 418082, 836164, 2896711, 5793422, 11586844, 20276977, 40553954, 81107908

24 divisors

τ Total Divisors 24
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -81107907
Sum of the proper positive divisors of n
A Arithmetic Mean 0.041666666666667
Returns the sum of divisors (σ(n)) divided by the total number of divisors (τ(n))
G Geometric Mean 1
Returns the nth root of the product of n divisors
H Harmonic Mean 24
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81107908 can be divided by 24 positive divisors. The sum of these divisors (counting 81107908) is 1, the average is 0.041666666666667.

Base conversion 81107908

Base System Value
2 Binary 100110101011001101111000100
3 Ternary 12122121201010121
4 Quaternary 10311121233010
5 Quinary 131230423113
6 Senary 12014231324
8 Octal 465315704
10 Decimal 81107908
12 Duodecimal 231b5544
16 Hexadecimal 4d59bc4
20 Vigesimal 156i9f8
36 Base36 1caf9g

Cryptographic Hash Functions

md5 c69fb9db2a85d708d7b20681edb6ed30
sha1 ec48895c378c4293baf7ea32e827a44682f6a554
sha256 baeeb71e6f73df9e457c71a395dc8aaa9b62ad257a63ed1217d725ca44544262
sha512 29a694c68e654bbfa9192df645357281794e6a13c269e016315d6480c017373fc891ede02724102f0c7a986c1f51728e27c32cea103d47ed361e5187067655e8
ripemd-160 2170e3d5aa311e580d8bd9706c36aa4a1c9e557d

81107908 as geometric shapes

Circle

Radius = n
Diameter 162215816
Circumference 509616015.84167
Area 2.0666944464107E+16

Sphere

Radius = n
Volume 2.2350035069811E+24
Surface area 8.2667777856426E+16
Circumference 509616015.84167

Square

Length = n
Perimeter 324431632
Area 6578492740136464
Diagonal 114703903.50931

Cube

Length = n
Surface area 39470956440818784
Volume 5.3356778394566E+23
Space diagonal 140483017.55162

Equilateral Triangle

Length = n
Perimeter 243323724
Area 2.8485709157848E+15
Altitude 70241508.775811

Triangular Pyramid

Length = n
Surface area 2.8485709157848E+15
Volume 6.2881566375109E+22
Height 38234634.503103