81252008 (number)

81252008 is an even 8-digits composite number following 81252007 and preceding 81252009. In scientific notation, it is written as 8.1252008 × 10^7. The sum of its digits is 26. It has a total of 5 prime factors and 16 positive divisors. There are 38859568 positive integers (up to 81252008) that are relatively prime to 81252008.

Interesting facts

Basic properties

Name

Name eighty-one million two hundred fifty-two thousand eight

Notation

Scientific notation 8.1252008 × 10^7
Engineering notation 8.1252008 × 10^6

Prime Factorization of 81252008

Prime Factorization 2 × 2 × 2 × 23 × 441587

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 20313002
Product of the distinct prime numbers

The prime factorization of 81252008 is 2 × 2 × 2 × 23 × 441587. Since it has a total of 5 prime factors.

Most popular turbo-numbers

6, 4, 66, 72, 811, 955, 5215, 2777, 32698, 44085, 182220, 128036, 2787168, 5632487, 24550723, 82584491, 816386642, 17066470, 4984256188, 1644751805

Basic calculations (n = 81252008)

Multiplication

n×y
n×2 162504016
n×3 243756024
n×4 325008032
n×5 406260040

Division

n÷y
n÷2 40626004
n÷3 27084002.666667
n÷3 20313002
n÷5 16250401.6

Exponentiation

ny
n2 6601888804032064
n3 5.3641672192032E+23
n4 4.3584935780804E+31
n5 3.5413635507414E+39

Nth Root

y√n
2√n 9013.9895717712
3√n 433.12312065772
4√n 94.942032692434
5√n 38.191509195719

Divisors of 81252008

1, 2, 4, 8, 23, 46, 92, 184, 441587, 883174, 1766348, 3532696, 10156501, 20313002, 40626004, 81252008

16 divisors

τ Total Divisors 16
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -81252007
Sum of the proper positive divisors of n
A Arithmetic Mean 0.0625
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 16
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81252008 can be divided by 16 positive divisors. The sum of these divisors (counting 81252008) is 1, the average is 0.0625.

Base conversion 81252008

Base System Value
2 Binary 100110101111100111010101000
3 Ternary 12122220000210122
4 Quaternary 10311330322220
5 Quinary 131300031013
6 Senary 12021302412
8 Octal 465747250
10 Decimal 81252008
12 Duodecimal 23264a08
16 Hexadecimal 4d7cea8
20 Vigesimal 157ga08
36 Base36 1cdig8

Cryptographic Hash Functions

md5 dce64618e4469922769bae6c7307c5fa
sha1 8022e35c0ec67bb7c44a92a45b18661e968061e0
sha256 f4c0043270ff9758460b171e84b492511cd11f3a549bbb231d1f22425e735277
sha512 cbc69ab54f50d8f76980299d495f2b073a0311c2cf1a80f84019501bf1b24638fa7124c649b5668206cc35e446630e9b2b4a3479201bf46571b66cf64709fb44
ripemd-160 3e70093e80edf9161bbcc6268cd4f455cdd39c15

81252008 as geometric shapes

Circle

Radius = n
Diameter 162504016
Circumference 510521422.84444
Area 2.0740445366564E+16

Sphere

Radius = n
Volume 2.2469371104635E+24
Surface area 8.2961781466255E+16
Circumference 510521422.84444

Square

Length = n
Perimeter 325008032
Area 6601888804032064
Diagonal 114907691.68365

Cube

Length = n
Surface area 39611332824192384
Volume 5.3641672192032E+23
Space diagonal 140732606.07299

Equilateral Triangle

Length = n
Perimeter 243756024
Area 2.8587017086259E+15
Altitude 70366303.036496

Triangular Pyramid

Length = n
Surface area 2.8587017086259E+15
Volume 6.3217316935287E+22
Height 38302563.894549