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

81685087 (number)

81685087 is an odd 8-digits composite number following 81685086 and preceding 81685088. In scientific notation, it is written as 8.1685087 × 10^7. The sum of its digits is 43. It has a total of 3 prime factors and 8 positive divisors. There are 72999960 positive integers (up to 81685087) that are relatively prime to 81685087.

Interesting facts

81685087 has 8 divisors, whose sum is 90622080
The reverse of 81685087 is 78058618
Previous prime number is 59

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 43
Digital Root 7

Name

Name	eighty-one million six hundred eighty-five thousand eighty-seven

Notation

Scientific notation	8.1685087 × 10^7
Engineering notation	8.1685087 × 10^6

Prime Factorization of 81685087

Prime Factorization 11 × 59 × 125863

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	81685087	Product of the distinct prime numbers

The prime factorization of 81685087 is 11 × 59 × 125863. Since it has a total of 3 prime factors.

Most popular turbo-numbers

1, 5, 50, 34, 204, 721, 9594, 4774, 53024, 63409, 41890, 562164, 5218906, 5994908, 70843235, 93626520, 945776887, 324760124, 1266294761, 7136970832

Basic calculations (n = 81685087)

Multiplication

n×y

n×2	163370174
n×3	245055261
n×4	326740348
n×5	408425435

Division

n÷y

n÷2	40842543.5
n÷3	27228362.333333
n÷3	20421271.75
n÷5	16337017.4

Exponentiation

n^y

n²	6672453438197569
n³	5.4503993960262E+23
n⁴	4.4521634884915E+31
n⁵	3.6367536189565E+39

Nth Root

^y√n

²√n	9037.9802500337
³√n	433.89128319512
⁴√n	95.068292558738
⁵√n	38.232135365452

Divisors of 81685087

1, 11, 59, 649, 125863, 1384493, 7425917, 81685087

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	-81685086	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 81685087 can be divided by 8 positive divisors. The sum of these divisors (counting 81685087) is 1, the average is 0.125.

Base conversion 81685087

Base	System	Value
2	Binary	100110111100110101001011111
3	Ternary	12200201000212121
4	Quaternary	10313212221133
5	Quinary	131402410322
6	Senary	12034443411
8	Octal	467465137
10	Decimal	81685087
12	Duodecimal	23433567
16	Hexadecimal	4de6a5f
20	Vigesimal	15aace7
36	Base36	1cmsm7

Cryptographic Hash Functions

md5	41bfe29b6867e343ad05dc0e3e48277f
sha1	7253a5e22b429b53ce6c5563b3cb1aa5d690c0ee
sha256	0c956b1c97ed41ea2dc48daadb3bca2c524087e9c62123375a604cefc9a79ecd
sha512	595953d0552736f3d6073fcd6b9669fc45f483418732d213cd6f5d0ee615c565661a064d624e80d9da721fdcb5e9d7b62404a9986d78b59a3bbbdbeae54672c9
ripemd-160	9e3691a1ff561f230d551cbf83d87ba7a97c1b3b

81685087 as geometric shapes

Circle

Radius = n

Diameter	163370174
Circumference	513242538.45409
Area	2.0962130702861E+16

Sphere

Radius = n

Volume	2.2830579602248E+24
Surface area	8.3848522811446E+16
Circumference	513242538.45409

Square

Length = n

Perimeter	326740348
Area	6672453438197569
Diagonal	115520157.87903

Cube

Length = n

Surface area	40034720629185414
Volume	5.4503993960262E+23
Space diagonal	141482720.90468

Equilateral Triangle

Length = n

Perimeter	245055261
Area	2.889257091524E+15
Altitude	70741360.452342

Triangular Pyramid

Length = n

Surface area	2.889257091524E+15
Volume	6.4233572885086E+22
Height	38506719.293009