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

81297013 (number)

81297013 is an odd 8-digits composite number following 81297012 and preceding 81297014. In scientific notation, it is written as 8.1297013 × 10^7. The sum of its digits is 31. It has a total of 3 prime factors and 8 positive divisors. There are 69557280 positive integers (up to 81297013) that are relatively prime to 81297013.

Interesting facts

81297013 has 8 divisors, whose sum is 93078720
The reverse of 81297013 is 31079218
Previous prime number is 569

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 31
Digital Root 4

Name

Name	eighty-one million two hundred ninety-seven thousand thirteen

Notation

Scientific notation	8.1297013 × 10^7
Engineering notation	8.1297013 × 10^6

Prime Factorization of 81297013

Prime Factorization 7 × 569 × 20411

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	81297013	Product of the distinct prime numbers

The prime factorization of 81297013 is 7 × 569 × 20411. Since it has a total of 3 prime factors.

Most popular turbo-numbers

6, 5, 87, 70, 720, 738, 7419, 9219, 47526, 70039, 989053, 766805, 7493809, 3772928, 22035445, 52483069, 622043781, 61056086, 2634217889, 6411283699

Basic calculations (n = 81297013)

Multiplication

n×y

n×2	162594026
n×3	243891039
n×4	325188052
n×5	406485065

Division

n÷y

n÷2	40648506.5
n÷3	27099004.333333
n÷3	20324253.25
n÷5	16259402.6

Exponentiation

n^y

n²	6609204322722169
n³	5.37308569744E+23
n⁴	4.3681581779489E+31
n⁵	3.5511821217877E+39

Nth Root

^y√n

²√n	9016.4856235675
³√n	433.20307399741
⁴√n	94.955176918205
⁵√n	38.195739068247

Divisors of 81297013

1, 7, 569, 3983, 20411, 142877, 11613859, 81297013

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	-81297012	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 81297013 can be divided by 8 positive divisors. The sum of these divisors (counting 81297013) is 1, the average is 0.125.

Base conversion 81297013

Base	System	Value
2	Binary	100110110000111111001110101
3	Ternary	12122222022112111
4	Quaternary	10312013321311
5	Quinary	131303001023
6	Senary	12022251021
8	Octal	466077165
10	Decimal	81297013
12	Duodecimal	23286a71
16	Hexadecimal	4d87e75
20	Vigesimal	15822ad
36	Base36	1ceh6d

Cryptographic Hash Functions

md5	a30c7530b8a4bbb6f588418f5a4ae487
sha1	94835e16b7bcaf22b5c22dfc86a853b4232df9a5
sha256	af807a3e80df911184405f25739925da65deb610b54ac5f28f8b0683bd9f82d8
sha512	a3308c717f8aaf7ada5b1f75a4462cd00b792ff212947ed0199b421bf748d571d8a5d59702dbad2984e2fde2f3c0cd384084df5138f722995f63f1c7ea611d98
ripemd-160	16cbb7bed65fefee949731578843c71bcbc0d93f

81297013 as geometric shapes

Circle

Radius = n

Diameter	162594026
Circumference	510804197.59919
Area	2.0763427746338E+16

Sphere

Radius = n

Volume	2.2506728738915E+24
Surface area	8.3053710985351E+16
Circumference	510804197.59919

Square

Length = n

Perimeter	325188052
Area	6609204322722169
Diagonal	114971338.36502

Cube

Length = n

Surface area	39655225936333014
Volume	5.37308569744E+23
Space diagonal	140810557.01959

Equilateral Triangle

Length = n

Perimeter	243891039
Area	2.8618694211397E+15
Altitude	70405278.509794

Triangular Pyramid

Length = n

Surface area	2.8618694211397E+15
Volume	6.3322422209271E+22
Height	38323779.455007