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

81252021 (number)

81252021 is an odd 8-digits composite number following 81252020 and preceding 81252022. In scientific notation, it is written as 8.1252021 × 10^7. The sum of its digits is 21. It has a total of 3 prime factors and 8 positive divisors. There are 53145872 positive integers (up to 81252021) that are relatively prime to 81252021.

Interesting facts

81252021 has 8 divisors, whose sum is 110380320
The reverse of 81252021 is 12025218
Previous prime number is 53

Basic properties

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

Name

Name	eighty-one million two hundred fifty-two thousand twenty-one

Notation

Scientific notation	8.1252021 × 10^7
Engineering notation	8.1252021 × 10^6

Prime Factorization of 81252021

Prime Factorization 3 × 53 × 511019

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	81252021	Product of the distinct prime numbers

The prime factorization of 81252021 is 3 × 53 × 511019. Since it has a total of 3 prime factors.

Most popular turbo-numbers

5, 7, 34, 83, 454, 213, 443, 4759, 8965, 54165, 116823, 675313, 6859074, 2302222, 45303626, 4752718, 47548774, 398689247, 7634864478, 7678145285

Basic calculations (n = 81252021)

Multiplication

n×y

n×2	162504042
n×3	243756063
n×4	325008084
n×5	406260105

Division

n÷y

n÷2	40626010.5
n÷3	27084007
n÷3	20313005.25
n÷5	16250404.2

Exponentiation

n^y

n²	6601890916584441
n³	5.3641697939403E+23
n⁴	4.358496367448E+31
n⁵	3.5413663837631E+39

Nth Root

^y√n

²√n	9013.9902928725
³√n	433.12314375705
⁴√n	94.942036490021
⁵√n	38.191510417817

Divisors of 81252021

1, 3, 53, 159, 511019, 1533057, 27084007, 81252021

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	-81252020	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 81252021 can be divided by 8 positive divisors. The sum of these divisors (counting 81252021) is 1, the average is 0.125.

Base conversion 81252021

Base	System	Value
2	Binary	100110101111100111010110101
3	Ternary	12122220000211010
4	Quaternary	10311330322311
5	Quinary	131300031041
6	Senary	12021302433
8	Octal	465747265
10	Decimal	81252021
12	Duodecimal	23264a19
16	Hexadecimal	4d7ceb5
20	Vigesimal	157ga11
36	Base36	1cdigl

Cryptographic Hash Functions

md5	470100e9619668aa36df11b7579a1540
sha1	730b4f6ec4d5fe18ad179cf993b6c1dfb762279f
sha256	7e3e2a3de4f0522189741fa79ca7f796a1361ab17af67441f39cf4a6d1f474af
sha512	7bdff38c64dfbcf1900a5208df80ee2a047ddeb34b1d29aba945eb2826775369057b945c2fb6857e3cd8e471c0616fce0552e10427428443928570de27afe91a
ripemd-160	553c1bf895d41938795aca3ded21e5e7c8a27d94

81252021 as geometric shapes

Circle

Radius = n

Diameter	162504042
Circumference	510521504.52585
Area	2.0740452003343E+16

Sphere

Radius = n

Volume	2.2469381889668E+24
Surface area	8.2961808013371E+16
Circumference	510521504.52585

Square

Length = n

Perimeter	325008084
Area	6601890916584441
Diagonal	114907710.06842

Cube

Length = n

Surface area	39611345499506646
Volume	5.3641697939403E+23
Space diagonal	140732628.58965

Equilateral Triangle

Length = n

Perimeter	243756063
Area	2.8587026233879E+15
Altitude	70366314.294827

Triangular Pyramid

Length = n

Surface area	2.8587026233879E+15
Volume	6.3217347278854E+22
Height	38302570.022808