81620008 (number)

81620008 is an even 8-digits composite number following 81620007 and preceding 81620009. In scientific notation, it is written as 8.1620008 × 10^7. The sum of its digits is 25. It has a total of 5 prime factors and 16 positive divisors. There are 39035568 positive integers (up to 81620008) that are relatively prime to 81620008.

Interesting facts

Basic properties

Name

Name eighty-one million six hundred twenty thousand eight

Notation

Scientific notation 8.1620008 × 10^7
Engineering notation 8.1620008 × 10^6

Prime Factorization of 81620008

Prime Factorization 2 × 2 × 2 × 23 × 443587

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 20405002
Product of the distinct prime numbers

The prime factorization of 81620008 is 2 × 2 × 2 × 23 × 443587. Since it has a total of 5 prime factors.

Most popular turbo-numbers

2, 5, 65, 46, 268, 82, 4694, 6088, 38678, 95717, 51670, 876121, 7841744, 3915456, 33713014, 94033854, 323418353, 486269401, 6213419322, 2836588111

Basic calculations (n = 81620008)

Multiplication

n×y
n×2 163240016
n×3 244860024
n×4 326480032
n×5 408100040

Division

n÷y
n÷2 40810004
n÷3 27206669.333333
n÷3 20405002
n÷5 16324001.6

Exponentiation

ny
n2 6661825705920064
n3 5.437382674118E+23
n4 4.4379921736057E+31
n5 3.6222895671364E+39

Nth Root

y√n
2√n 9034.3792260454
3√n 433.77602464918
4√n 95.0493515288
5√n 38.226041468697

Divisors of 81620008

1, 2, 4, 8, 23, 46, 92, 184, 443587, 887174, 1774348, 3548696, 10202501, 20405002, 40810004, 81620008

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 -81620007
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 81620008 can be divided by 16 positive divisors. The sum of these divisors (counting 81620008) is 1, the average is 0.0625.

Base conversion 81620008

Base System Value
2 Binary 100110111010110110000101000
3 Ternary 12200120201121021
4 Quaternary 10313112300220
5 Quinary 131343320013
6 Senary 12033222224
8 Octal 467266050
10 Decimal 81620008
12 Duodecimal 23401974
16 Hexadecimal 4dd6c28
20 Vigesimal 15a2a08
36 Base36 1cleeg

Cryptographic Hash Functions

md5 531782a92bbdaa4fe43704ce347f266a
sha1 f377ef1110dd6caad04fe13e0a0d8cfe9c3d375d
sha256 b36f32f2881aebc3e7ce9adc0f58c4b2664c663e400c71a92995d78727a08728
sha512 8c9ccadc4cdaee4e53b732fa0727aa6d55596731d9a6098d59e031a1a8cfb6c19d6133420652a35d84adc6e1792b818b868883d3007f9bbc3e2ec1ecc1cb8121
ripemd-160 4bef51d9679335e5e1b9696227fae3b93d8c569e

81620008 as geometric shapes

Circle

Radius = n
Diameter 163240016
Circumference 512833635.03748
Area 2.0928742697214E+16

Sphere

Radius = n
Volume 2.2776055285021E+24
Surface area 8.3714970788856E+16
Circumference 512833635.03748

Square

Length = n
Perimeter 326480032
Area 6661825705920064
Diagonal 115428122.2746

Cube

Length = n
Surface area 39970954235520384
Volume 5.437382674118E+23
Space diagonal 141370000.77018

Equilateral Triangle

Length = n
Perimeter 244860024
Area 2.8846551484555E+15
Altitude 70685000.385089

Triangular Pyramid

Length = n
Surface area 2.8846551484555E+15
Volume 6.4080169346252E+22
Height 38476040.7582