81125888 (number)

81125888 is an even 8-digits composite number following 81125887 and preceding 81125889. In scientific notation, it is written as 8.1125888 × 10^7. The sum of its digits is 41. It has a total of 10 prime factors and 20 positive divisors. There are 40562688 positive integers (up to 81125888) that are relatively prime to 81125888.

Interesting facts

Basic properties

Name

Name eighty-one million one hundred twenty-five thousand eight hundred eighty-eight

Notation

Scientific notation 8.1125888 × 10^7
Engineering notation 8.1125888 × 10^6

Prime Factorization of 81125888

Prime Factorization 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 158449

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 10
Total number of prime factors
rad Radical 316898
Product of the distinct prime numbers

The prime factorization of 81125888 is 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 158449. Since it has a total of 10 prime factors.

Most popular turbo-numbers

10, 9, 11, 11, 246, 201, 8639, 4177, 95366, 86792, 739004, 608278, 5849172, 9879649, 25422711, 36618909, 2356940, 728737278, 1450851224, 8406932560

Basic calculations (n = 81125888)

Multiplication

n×y
n×2 162251776
n×3 243377664
n×4 324503552
n×5 405629440

Division

n÷y
n÷2 40562944
n÷3 27041962.666667
n÷3 20281472
n÷5 16225177.6

Exponentiation

ny
n2 6581409703788544
n3 5.3392270651166E+23
n4 4.3314953689122E+31
n5 3.5139640817089E+39

Nth Root

y√n
2√n 9006.9910625025
3√n 432.8989055805
4√n 94.905168787071
5√n 38.179645595883

Divisors of 81125888

1, 2, 4, 8, 16, 32, 64, 128, 256, 512, 158449, 316898, 633796, 1267592, 2535184, 5070368, 10140736, 20281472, 40562944, 81125888

20 divisors

τ Total Divisors 20
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -81125887
Sum of the proper positive divisors of n
A Arithmetic Mean 0.05
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 20
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81125888 can be divided by 20 positive divisors. The sum of these divisors (counting 81125888) is 1, the average is 0.05.

Base conversion 81125888

Base System Value
2 Binary 100110101011110001000000000
3 Ternary 12122122121210112
4 Quaternary 10311132020000
5 Quinary 131232012023
6 Senary 12014450452
8 Octal 465361000
10 Decimal 81125888
12 Duodecimal 23203a28
16 Hexadecimal 4d5e200
20 Vigesimal 1570ee8
36 Base36 1cat4w

Cryptographic Hash Functions

md5 ef5beb4c1d041399004839535cc1ddc0
sha1 07363e86be7a3d2e031a386047f4838799a65842
sha256 afd72a001463f0602ab8cf348f53b50341eaa89359d2097b356cd266b3233cfc
sha512 1a4f9f405de3ee8503e52d85b54e2b3c1ff1233c8b30fff88cafd587f59def6c42230af889274844c9d0b87245939804af9d16dbbac3254da2a665ccab05951f
ripemd-160 7b921c96bbc0ac428e0e2189ad831bcd28b93085

81125888 as geometric shapes

Circle

Radius = n
Diameter 162251776
Circumference 509728987.5135
Area 2.0676108375687E+16

Sphere

Radius = n
Volume 2.2364902031491E+24
Surface area 8.2704433502747E+16
Circumference 509728987.5135

Square

Length = n
Perimeter 324503552
Area 6581409703788544
Diagonal 114729331.06916

Cube

Length = n
Surface area 39488458222731264
Volume 5.3392270651166E+23
Space diagonal 140514159.82514

Equilateral Triangle

Length = n
Perimeter 243377664
Area 2.8498339980971E+15
Altitude 70257079.912571

Triangular Pyramid

Length = n
Surface area 2.8498339980971E+15
Volume 6.2923394400645E+22
Height 38243110.356387