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

81013457 (number)

81013457 is an odd 8-digits composite number following 81013456 and preceding 81013458. In scientific notation, it is written as 8.1013457 × 10^7. The sum of its digits is 29. It has a total of 3 prime factors and 8 positive divisors. There are 69393312 positive integers (up to 81013457) that are relatively prime to 81013457.

Interesting facts

81013457 has 8 divisors, whose sum is 92649216
The reverse of 81013457 is 75431018
Previous prime number is 1993

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 29
Digital Root 2

Name

Name	eighty-one million thirteen thousand four hundred fifty-seven

Notation

Scientific notation	8.1013457 × 10^7
Engineering notation	8.1013457 × 10^6

Prime Factorization of 81013457

Prime Factorization 7 × 1993 × 5807

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	81013457	Product of the distinct prime numbers

The prime factorization of 81013457 is 7 × 1993 × 5807. Since it has a total of 3 prime factors.

Most popular turbo-numbers

3, 5, 16, 27, 225, 915, 9710, 9107, 18116, 66975, 373191, 569552, 7960954, 4025508, 39707287, 58645820, 471963631, 441906262, 3305632343, 3750356496

Basic calculations (n = 81013457)

Multiplication

n×y

n×2	162026914
n×3	243040371
n×4	324053828
n×5	405067285

Division

n÷y

n÷2	40506728.5
n÷3	27004485.666667
n÷3	20253364.25
n÷5	16202691.4

Exponentiation

n^y

n²	6563180215090849
n³	5.3170591813851E+23
n⁴	4.307533453576E+31
n⁵	3.4896817621734E+39

Nth Root

^y√n

²√n	9000.7475800624
³√n	432.69883069439
⁴√n	94.872269816119
⁵√n	38.169057219166

Divisors of 81013457

1, 7, 1993, 5807, 13951, 40649, 11573351, 81013457

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	-81013456	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 81013457 can be divided by 8 positive divisors. The sum of these divisors (counting 81013457) is 1, the average is 0.125.

Base conversion 81013457

Base	System	Value
2	Binary	100110101000010101011010001
3	Ternary	12122102220120102
4	Quaternary	10311002223101
5	Quinary	131214412312
6	Senary	12012222145
8	Octal	465025321
10	Decimal	81013457
12	Duodecimal	2316a955
16	Hexadecimal	4d42ad1
20	Vigesimal	1566dch
36	Base36	1c8edt

Cryptographic Hash Functions

md5	e7b5efe9922df40f1f621febc2b90229
sha1	5844e379ff0f3f7f6482c9843f471d35e50af084
sha256	d976e7ac87925d96bfe89efc6f8149d1df7e7625652ea954744e79653aba5569
sha512	99c8f5fca7335b03fce86d8ad716ea11ecf665b18be75317f5257c5e57a619ace92c2aaa2818b679ee956b344893dd532b4267c4481fd25932876c340cbef5e6
ripemd-160	dc599faebbe3d5117b9ec38acb3956ae9bef10fb

81013457 as geometric shapes

Circle

Radius = n

Diameter	162026914
Circumference	509022562.70623
Area	2.0618838747915E+16

Sphere

Radius = n

Volume	2.2272045417256E+24
Surface area	8.2475354991661E+16
Circumference	509022562.70623

Square

Length = n

Perimeter	324053828
Area	6563180215090849
Diagonal	114570329.62413

Cube

Length = n

Surface area	39379081290545094
Volume	5.3170591813851E+23
Space diagonal	140319423.6208

Equilateral Triangle

Length = n

Perimeter	243040371
Area	2.841940397942E+15
Altitude	70159711.810398

Triangular Pyramid

Length = n

Surface area	2.841940397942E+15
Volume	6.266214338546E+22
Height	38190109.87471