Max	9223372036854775807
25835	Positive integer
0b10001100	Binary number
01771452	Octal number
0x129abf	Hex number
5.012 * 10^7	Scientific notation
2^4 * 5	Factorized form
*	Random number

81008031 (number)

81008031 is an odd 8-digits composite number following 81008030 and preceding 81008032. In scientific notation, it is written as 8.1008031 × 10^7. The sum of its digits is 21. It has a total of 3 prime factors and 8 positive divisors. There are 49851072 positive integers (up to 81008031) that are relatively prime to 81008031.

Interesting facts

81008031 has 8 divisors, whose sum is 116319280
The reverse of 81008031 is 13080018
Previous prime number is 13

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 21
Digital Root 3

Name

Name	eighty-one million eight thousand thirty-one

Notation

Scientific notation	8.1008031 × 10^7
Engineering notation	8.1008031 × 10^6

Prime Factorization of 81008031

Prime Factorization 3 × 13 × 2077129

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	81008031	Product of the distinct prime numbers

The prime factorization of 81008031 is 3 × 13 × 2077129. Since it has a total of 3 prime factors.

Most popular turbo-numbers

10, 10, 59, 15, 58, 679, 3280, 6186, 54149, 28093, 62744, 89992, 6082918, 2278388, 59755654, 94873782, 275013212, 40992004, 4001275604, 472651375

Basic calculations (n = 81008031)

Multiplication

n×y

n×2	162016062
n×3	243024093
n×4	324032124
n×5	405040155

Division

n÷y

n÷2	40504015.5
n÷3	27002677
n÷3	20252007.75
n÷5	16201606.2

Exponentiation

n^y

n²	6562301086496961
n³	5.3159908984628E+23
n⁴	4.3063795549839E+31
n⁵	3.488513284879E+39

Nth Root

^y√n

²√n	9000.4461556081
³√n	432.68917025706
⁴√n	94.870681222431
⁵√n	38.168545919289

Divisors of 81008031

1, 3, 13, 39, 2077129, 6231387, 27002677, 81008031

8 divisors

τ	Total Divisors	8	Total number of the positive divisors of n
σ	Sum of Divisors	1	Sum of all the positive divisors of n
s	Aliquot Sum	-81008030	Sum of the proper positive divisors of n
A	Arithmetic Mean	0.125	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	8	Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81008031 can be divided by 8 positive divisors. The sum of these divisors (counting 81008031) is 1, the average is 0.125.

Base conversion 81008031

Base	System	Value
2	Binary	100110101000001010110011111
3	Ternary	12122102122010110
4	Quaternary	10311001112133
5	Quinary	131214224111
6	Senary	12012141103
8	Octal	465012637
10	Decimal	81008031
12	Duodecimal	23167793
16	Hexadecimal	4d4159f
20	Vigesimal	156601b
36	Base36	1c8a73

Cryptographic Hash Functions

md5	e6c3f9aedc61393a5f908c6fcf84b0a8
sha1	9f77c055ae469d14acd22170541e7c63087fd3ca
sha256	5e005af635afd3b8b7fb96a541826ea4a42accd3ee05492f6348a2c60faaf225
sha512	962d9c282f7449ff0e63ee36a7e1ead3a2f0c9e1591b2948f071cf4d55ae381487877255330b6638cead0613f67727fb9fa101593986d2ec497eb5a76591dcde
ripemd-160	cb16dfdecab8b3cce49036c7458cc0a1d0ba95fb

81008031 as geometric shapes

Circle

Radius = n

Diameter	162016062
Circumference	508988470.14275
Area	2.0616076883983E+16

Sphere

Radius = n

Volume	2.2267570604215E+24
Surface area	8.2464307535933E+16
Circumference	508988470.14275

Square

Length = n

Perimeter	324032124
Area	6562301086496961
Diagonal	114562656.10134

Cube

Length = n

Surface area	39373806518981766
Volume	5.3159908984628E+23
Space diagonal	140310025.51311

Equilateral Triangle

Length = n

Perimeter	243024093
Area	2.8415597240943E+15
Altitude	70155012.756557

Triangular Pyramid

Length = n

Surface area	2.8415597240943E+15
Volume	6.2649553550484E+22
Height	38187552.03378