81125800 (number)

81125800 is an even 8-digits composite number following 81125799 and preceding 81125801. In scientific notation, it is written as 8.1125800 × 10^7. The sum of its digits is 25. It has a total of 6 prime factors and 32 positive divisors. There are 27814080 positive integers (up to 81125800) that are relatively prime to 81125800.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 8.1125800 × 10^7
Engineering notation 8.1125800 × 10^6

Prime Factorization of 81125800

Prime Factorization 2 × 2 × 2 × 25 × 7 × 57947

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 6
Total number of prime factors
rad Radical 20281450
Product of the distinct prime numbers

The prime factorization of 81125800 is 2 × 2 × 2 × 25 × 7 × 57947. Since it has a total of 6 prime factors.

Most popular turbo-numbers

3, 1, 31, 69, 338, 129, 3112, 3502, 41742, 48126, 475322, 612501, 2119069, 216624, 24245847, 27187855, 585938457, 367555977, 8758727215, 9370010161

Basic calculations (n = 81125800)

Multiplication

n×y
n×2 162251600
n×3 243377400
n×4 324503200
n×5 405629000

Division

n÷y
n÷2 40562900
n÷3 27041933.333333
n÷3 20281450
n÷5 16225160

Exponentiation

ny
n2 6581395425640000
n3 5.3392096902139E+23
n4 4.3314765748635E+31
n5 3.5139450231706E+39

Nth Root

y√n
2√n 9006.986177407
3√n 432.89874905374
4√n 94.905143050348
5√n 38.179637312928

Divisors of 81125800

1, 2, 4, 7, 8, 14, 25, 28, 50, 56, 100, 175, 200, 350, 700, 1400, 57947, 115894, 231788, 405629, 463576, 811258, 1448675, 1622516, 2897350, 3245032, 5794700, 10140725, 11589400, 20281450, 40562900, 81125800

32 divisors

τ Total Divisors 32
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -81125799
Sum of the proper positive divisors of n
A Arithmetic Mean 0.03125
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 32
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81125800 can be divided by 32 positive divisors. The sum of these divisors (counting 81125800) is 1, the average is 0.03125.

Base conversion 81125800

Base System Value
2 Binary 100110101011110000110101000
3 Ternary 12122122121200021
4 Quaternary 10311132012220
5 Quinary 131232011200
6 Senary 12014450224
8 Octal 465360650
10 Decimal 81125800
12 Duodecimal 23203974
16 Hexadecimal 4d5e1a8
20 Vigesimal 1570ea0
36 Base36 1cat2g

Cryptographic Hash Functions

md5 26de957ad6aa839681f8a34063840c8b
sha1 979f177ea1b5c5cb64df1b71a6a0ffe98449ded7
sha256 7426e2607d46d8d0e1b82f450987ab32eb70d7b40ec31e6275efd5d8f47dd311
sha512 207eae0d91c6139e4e5ea9c4fa257496cf7cbe6faaf9416c253e2787c921cff50dce7a9ef967c0e4ae68d912ead55ec7460628eee18a10d40a5e9a98f291f6a5
ripemd-160 52d7d57389b3debddab17173e4270ba5a8a103b7

81125800 as geometric shapes

Circle

Radius = n
Diameter 162251600
Circumference 509728434.59319
Area 2.067606351956E+16

Sphere

Radius = n
Volume 2.2364829251668E+24
Surface area 8.270425407824E+16
Circumference 509728434.59319

Square

Length = n
Perimeter 324503200
Area 6581395425640000
Diagonal 114729206.61837

Cube

Length = n
Surface area 39488372553840000
Volume 5.3392096902139E+23
Space diagonal 140514007.40467

Equilateral Triangle

Length = n
Perimeter 243377400
Area 2.8498278154775E+15
Altitude 70257003.702336

Triangular Pyramid

Length = n
Surface area 2.8498278154775E+15
Volume 6.2923189635452E+22
Height 38243068.872789