81579968 (number)

81579968 is an even 8-digits composite number following 81579967 and preceding 81579969. In scientific notation, it is written as 8.1579968 × 10^7. The sum of its digits is 53. It has a total of 9 prime factors and 56 positive divisors. There are 38790144 positive integers (up to 81579968) that are relatively prime to 81579968.

Interesting facts

Basic properties

Name

Name eighty-one million five hundred seventy-nine thousand nine hundred sixty-eight

Notation

Scientific notation 8.1579968 × 10^7
Engineering notation 8.1579968 × 10^6

Prime Factorization of 81579968

Prime Factorization 2 × 2 × 2 × 2 × 2 × 2 × 37 × 47 × 733

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 9
Total number of prime factors
rad Radical 2549374
Product of the distinct prime numbers

The prime factorization of 81579968 is 2 × 2 × 2 × 2 × 2 × 2 × 37 × 47 × 733. Since it has a total of 9 prime factors.

Most popular turbo-numbers

5, 5, 99, 50, 312, 904, 9201, 8293, 91426, 95726, 53290, 455872, 4788275, 5402634, 8414351, 85979601, 741322433, 238620220, 4083228219, 6214213525

Basic calculations (n = 81579968)

Multiplication

n×y
n×2 163159936
n×3 244739904
n×4 326319872
n×5 407899840

Division

n÷y
n÷2 40789984
n÷3 27193322.666667
n÷3 20394992
n÷5 16315993.6

Exponentiation

ny
n2 6655291178881024
n3 5.429384414038E+23
n4 4.4292900675692E+31
n5 3.6134134197501E+39

Nth Root

y√n
2√n 9032.1629746147
3√n 433.70508112548
4√n 95.037692388939
5√n 38.222290253364

Divisors of 81579968

1, 2, 4, 8, 16, 32, 37, 47, 64, 74, 94, 148, 188, 296, 376, 592, 733, 752, 1184, 1466, 1504, 1739, 2368, 2932, 3008, 3478, 5864, 6956, 11728, 13912, 23456, 27121, 27824, 34451, 46912, 54242, 55648, 68902, 108484, 111296, 137804, 216968, 275608, 433936, 551216, 867872, 1102432, 1274687, 1735744, 2204864, 2549374, 5098748, 10197496, 20394992, 40789984, 81579968

56 divisors

τ Total Divisors 56
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -81579967
Sum of the proper positive divisors of n
A Arithmetic Mean 0.017857142857143
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 56
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81579968 can be divided by 56 positive divisors. The sum of these divisors (counting 81579968) is 1, the average is 0.017857142857143.

Base conversion 81579968

Base System Value
2 Binary 100110111001100111111000000
3 Ternary 12200111200200022
4 Quaternary 10313030333000
5 Quinary 131341024333
6 Senary 12032313012
8 Octal 467147700
10 Decimal 81579968
12 Duodecimal 233a2768
16 Hexadecimal 4dccfc0
20 Vigesimal 159h9i8
36 Base36 1ckji8

Cryptographic Hash Functions

md5 133d2081fc445a740cb50865fc9df287
sha1 7772f6e2eacd474634e7dcd9e139a40ff61b1f2b
sha256 d364a8863f7d11fdd9f6cfd32836cb9b35864355b1b0a3aba8b38c170e7ed5d2
sha512 3ca426b77969e2d722aa5fdb52d6303a6eeec7fe571afaadec9ab3507270ab0003a76d5cd28030887b34d1edb0aaf582144d9c96a28fcda5a5e6a67c1b5a5d90
ripemd-160 d8f1196d8c65e7e56287eb3288f1b353ad604503

81579968 as geometric shapes

Circle

Radius = n
Diameter 163159936
Circumference 512582056.29778
Area 2.0908213875074E+16

Sphere

Radius = n
Volume 2.2742552251542E+24
Surface area 8.3632855500294E+16
Circumference 512582056.29778

Square

Length = n
Perimeter 326319872
Area 6655291178881024
Diagonal 115371497.16356

Cube

Length = n
Surface area 39931747073286144
Volume 5.429384414038E+23
Space diagonal 141300649.45584

Equilateral Triangle

Length = n
Perimeter 244739904
Area 2.8818256152467E+15
Altitude 70650324.727922

Triangular Pyramid

Length = n
Surface area 2.8818256152467E+15
Volume 6.3985908947247E+22
Height 38457165.721188