81129626 (number)

81129626 is an even 8-digits composite number following 81129625 and preceding 81129627. In scientific notation, it is written as 8.1129626 × 10^7. The sum of its digits is 35. It has a total of 2 prime factors and 4 positive divisors. There are 40564812 positive integers (up to 81129626) that are relatively prime to 81129626.

Interesting facts

Basic properties

Name

Name eighty-one million one hundred twenty-nine thousand six hundred twenty-six

Notation

Scientific notation 8.1129626 × 10^7
Engineering notation 8.1129626 × 10^6

Prime Factorization of 81129626

Prime Factorization 2 × 40564813

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 81129626
Product of the distinct prime numbers

The prime factorization of 81129626 is 2 × 40564813. Since it has a total of 2 prime factors.

Most popular turbo-numbers

Basic calculations (n = 81129626)

Multiplication

n×y
n×2 162259252
n×3 243388878
n×4 324518504
n×5 405648130

Division

n÷y
n÷2 40564813
n÷3 27043208.666667
n÷3 20282406.5
n÷5 16225925.2

Exponentiation

ny
n2 6582016214899876
n3 5.3399651384076E+23
n4 4.3322937453205E+31
n5 3.5147737127999E+39

Nth Root

y√n
2√n 9007.1985655919
3√n 432.9055543059
4√n 94.906261993568
5√n 38.179997426571

Divisors of 81129626

4 divisors

τ Total Divisors 4
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -81129625
Sum of the proper positive divisors of n
A Arithmetic Mean 0.25
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 4
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81129626 can be divided by 4 positive divisors. The sum of these divisors (counting 81129626) is 1, the average is 0.25.

Base conversion 81129626

Base System Value
2 Binary 100110101011111000010011010
3 Ternary 12122122210220222
4 Quaternary 10311133002122
5 Quinary 131232122001
6 Senary 12014520042
8 Octal 465370232
10 Decimal 81129626
12 Duodecimal 23206022
16 Hexadecimal 4d5f09a
20 Vigesimal 1571416
36 Base36 1caw0q

Cryptographic Hash Functions

md5 5499110f1eee9cd387fcdc2c9c6726ba
sha1 9711bbd1cc7b0a0f285953cde121ba43d179b65d
sha256 1dc305d584792d0cab7ef28c23d58fd9b090d4327d459084b36d1d1a71e8d432
sha512 1e6cb0ba58b0cad6a94b823acc0fa830b26b036fdfdba9e5e11273fa2182acc9999ad0f5a9313247ed5d6baf2d6137aa348c0c8b905e8aa0af149c7d053bc058
ripemd-160 8d0a6f13cf0e946a6f2032dad681f6bedb60c699

81129626 as geometric shapes

Circle

Radius = n
Diameter 162259252
Circumference 509752474.06017
Area 2.0678013786538E+16

Sphere

Radius = n
Volume 2.2367993665663E+24
Surface area 8.2712055146153E+16
Circumference 509752474.06017

Square

Length = n
Perimeter 324518504
Area 6582016214899876
Diagonal 114734617.39946

Cube

Length = n
Surface area 39492097289399256
Volume 5.3399651384076E+23
Space diagonal 140520634.23106

Equilateral Triangle

Length = n
Perimeter 243388878
Area 2.8500966251122E+15
Altitude 70260317.11553

Triangular Pyramid

Length = n
Surface area 2.8500966251122E+15
Volume 6.2932092677797E+22
Height 38244872.466486