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

81365513 (number)

81365513 is an odd 8-digits composite number following 81365512 and preceding 81365514. In scientific notation, it is written as 8.1365513 × 10^7. The sum of its digits is 32. It has a total of 2 prime factors and 4 positive divisors. There are 77827860 positive integers (up to 81365513) that are relatively prime to 81365513.

Interesting facts

81365513 has 4 divisors, whose sum is 84903168
The reverse of 81365513 is 31556318
Previous prime number is 23

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 32
Digital Root 5

Name

Name	eighty-one million three hundred sixty-five thousand five hundred thirteen

Notation

Scientific notation	8.1365513 × 10^7
Engineering notation	8.1365513 × 10^6

Prime Factorization of 81365513

Prime Factorization 23 × 3537631

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	81365513	Product of the distinct prime numbers

The prime factorization of 81365513 is 23 × 3537631. Since it has a total of 2 prime factors.

Most popular turbo-numbers

7, 7, 30, 27, 938, 701, 9274, 8748, 88946, 53777, 388684, 650782, 1724839, 6007299, 52239826, 15020785, 268519898, 514187686, 4044803505, 4835427862

Basic calculations (n = 81365513)

Multiplication

n×y

n×2	162731026
n×3	244096539
n×4	325462052
n×5	406827565

Division

n÷y

n÷2	40682756.5
n÷3	27121837.666667
n÷3	20341378.25
n÷5	16273102.6

Exponentiation

n^y

n²	6620346705753169
n³	5.3866790595147E+23
n⁴	4.3828990504377E+31
n⁵	3.5661682966607E+39

Nth Root

^y√n

²√n	9020.2834212679
³√n	433.3247106108
⁴√n	94.975172657215
⁵√n	38.202173564798

Divisors of 81365513

1, 23, 3537631, 81365513

4 divisors

τ	Total Divisors	4	Total number of the positive divisors of n
σ	Sum of Divisors	1	Sum of all the positive divisors of n
s	Aliquot Sum	-81365512	Sum of the proper positive divisors of n
A	Arithmetic Mean	0.25	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	4	Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81365513 can be divided by 4 positive divisors. The sum of these divisors (counting 81365513) is 1, the average is 0.25.

Base conversion 81365513

Base	System	Value
2	Binary	100110110011000101000001001
3	Ternary	12200002210111112
4	Quaternary	10312120220021
5	Quinary	131312144023
6	Senary	12023540105
8	Octal	466305011
10	Decimal	81365513
12	Duodecimal	232ba635
16	Hexadecimal	4d98a09
20	Vigesimal	158adfd
36	Base36	1cfy15

Cryptographic Hash Functions

md5	e2e0caff479a6f14c99bfd4a49238478
sha1	bcc1e21c6f021e919a585373f4efbfed6d16b58e
sha256	2b3a8efe41bf7a2329ee3304c80afe830a60c8071adac0bf9addde8b83ba0409
sha512	006402e5f42e355a84698bdc73c8c0e37dec4d607a43e8329713ee5f152e4b1ec8d5abaec7dbe1e4d3a835aa5dfa304944f133ccc3ef8dfe5abeedaa552bc71a
ripemd-160	b31c733e1a14f8a4cf9fc4873e97bbe51fea261c

81365513 as geometric shapes

Circle

Radius = n

Diameter	162731026
Circumference	511234595.79273
Area	2.0798432575012E+16

Sphere

Radius = n

Volume	2.2563668480823E+24
Surface area	8.3193730300046E+16
Circumference	511234595.79273

Square

Length = n

Perimeter	325462052
Area	6620346705753169
Diagonal	115068211.99404

Cube

Length = n

Surface area	39722080234519014
Volume	5.3866790595147E+23
Space diagonal	140929202.49991

Equilateral Triangle

Length = n

Perimeter	244096539
Area	2.8666942145214E+15
Altitude	70464601.249953

Triangular Pyramid

Length = n

Surface area	2.8666942145214E+15
Volume	6.348262151764E+22
Height	38356070.664681