81296128 (number)

81296128 is an even 8-digits composite number following 81296127 and preceding 81296129. In scientific notation, it is written as 8.1296128 × 10^7. The sum of its digits is 37. It has a total of 9 prime factors and 18 positive divisors. There are 40647936 positive integers (up to 81296128) that are relatively prime to 81296128.

Interesting facts

Basic properties

Name

Name eighty-one million two hundred ninety-six thousand one hundred twenty-eight

Notation

Scientific notation 8.1296128 × 10^7
Engineering notation 8.1296128 × 10^6

Prime Factorization of 81296128

Prime Factorization 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 317563

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 9
Total number of prime factors
rad Radical 635126
Product of the distinct prime numbers

The prime factorization of 81296128 is 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 317563. Since it has a total of 9 prime factors.

Most popular turbo-numbers

6, 5, 92, 21, 291, 635, 4093, 5915, 7327, 33052, 12011, 508387, 1500961, 1117029, 83833928, 89679637, 252175663, 683476988, 7407605479, 632906802

Basic calculations (n = 81296128)

Multiplication

n×y
n×2 162592256
n×3 243888384
n×4 325184512
n×5 406480640

Division

n÷y
n÷2 40648064
n÷3 27098709.333333
n÷3 20324032
n÷5 16259225.6

Exponentiation

ny
n2 6609060427792384
n3 5.3729102249754E+23
n4 4.3679679738211E+31
n5 3.5509888349966E+39

Nth Root

y√n
2√n 9016.436546663
3√n 433.20150204088
4√n 94.954918496426
5√n 38.195655908055

Divisors of 81296128

1, 2, 4, 8, 16, 32, 64, 128, 256, 317563, 635126, 1270252, 2540504, 5081008, 10162016, 20324032, 40648064, 81296128

18 divisors

τ Total Divisors 18
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -81296127
Sum of the proper positive divisors of n
A Arithmetic Mean 0.055555555555556
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 18
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81296128 can be divided by 18 positive divisors. The sum of these divisors (counting 81296128) is 1, the average is 0.055555555555556.

Base conversion 81296128

Base System Value
2 Binary 100110110000111101100000000
3 Ternary 12122222021022201
4 Quaternary 10312013230000
5 Quinary 131302434003
6 Senary 12022242544
8 Octal 466075400
10 Decimal 81296128
12 Duodecimal 23286454
16 Hexadecimal 4d87b00
20 Vigesimal 1582068
36 Base36 1ceghs

Cryptographic Hash Functions

md5 e7c7164542a4a08d23fd7427773fea72
sha1 0f3cc449ca01496e51385bd6fdf588c691c9335f
sha256 e4fcd93b21f859b7d215dbae9c687014324872d89955945f27cead8dbccd3fc2
sha512 54c647a02d4514647f64c6c5808f69807acdbb982ee4889f69b31d37a385dfc08e60d9002bd66251e869239c03f34d0c464646b78d9d1a906548a0c7f45a8744
ripemd-160 e41bf93ac97be7e08a9fe186b90f6b8c8249cf26

81296128 as geometric shapes

Circle

Radius = n
Diameter 162592256
Circumference 510798636.98019
Area 2.0762975687084E+16

Sphere

Radius = n
Volume 2.2505993721574E+24
Surface area 8.3051902748334E+16
Circumference 510798636.98019

Square

Length = n
Perimeter 325184512
Area 6609060427792384
Diagonal 114970086.78602

Cube

Length = n
Surface area 39654362566754304
Volume 5.3729102249754E+23
Space diagonal 140809024.15462

Equilateral Triangle

Length = n
Perimeter 243888384
Area 2.8618071128073E+15
Altitude 70404512.077311

Triangular Pyramid

Length = n
Surface area 2.8618071128073E+15
Volume 6.3320354246445E+22
Height 38323362.262006