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

81728807 (number)

81728807 is an odd 8-digits prime number following 81728806 and preceding 81728808. In scientific notation, it is written as 8.1728807 × 10^7. The sum of its digits is 41. It has a total of 1 prime factors and 2 positive divisors. There are 81728806 positive integers (up to 81728807) that are relatively prime to 81728807.

Interesting facts

81728807 has 2 divisors, whose sum is 81728808
The reverse of 81728807 is 70882718
Previous prime number is 1

Basic properties

Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 41
Digital Root 5

Name

Name	eighty-one million seven hundred twenty-eight thousand eight hundred seven

Notation

Scientific notation	8.1728807 × 10^7
Engineering notation	8.1728807 × 10^6

Prime Factorization of 81728807

Prime Factorization 81728807

Composite number

ω	Distinct Factors	1	Total number of distinct prime factors
Ω	Total Factors	1	Total number of prime factors
rad	Radical	81728807	Product of the distinct prime numbers

The prime factorization of 81728807 is 81728807. Since it has a total of 1 prime factors.

Most popular turbo-numbers

2, 5, 11, 46, 85, 991, 4647, 6169, 88533, 47143, 413857, 372502, 8201811, 9896641, 81138772, 46808074, 798510179, 707297788, 6382929713, 3808572476

Basic calculations (n = 81728807)

Multiplication

n×y

n×2	163457614
n×3	245186421
n×4	326915228
n×5	408644035

Division

n÷y

n÷2	40864403.5
n÷3	27242935.666667
n÷3	20432201.75
n÷5	16345761.4

Exponentiation

n^y

n²	6679597893643249
n³	5.4591556708718E+23
n⁴	4.4617028020763E+31
n⁵	3.6464964720226E+39

Nth Root

^y√n

²√n	9040.3986084685
³√n	433.96867938512
⁴√n	95.081010766969
⁵√n	38.23622705778

Divisors of 81728807

1, 81728807

2 divisors

τ	Total Divisors	2	Total number of the positive divisors of n
σ	Sum of Divisors	81728808	Sum of all the positive divisors of n
s	Aliquot Sum	1	Sum of the proper positive divisors of n
A	Arithmetic Mean	40864404	Returns the sum of divisors (σ(n)) divided by the total number of divisors (τ(n))
G	Geometric Mean	9040.3986637758	Returns the nth root of the product of n divisors
H	Harmonic Mean	1.9999999755288	Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81728807 can be divided by 2 positive divisors. The sum of these divisors (counting 81728807) is 81728808, the average is 40864404.

Base conversion 81728807

Base	System	Value
2	Binary	100110111110001010100100111
3	Ternary	12200210020211212
4	Quaternary	10313301110213
5	Quinary	131410310212
6	Senary	12035422035
8	Octal	467612447
10	Decimal	81728807
12	Duodecimal	2345491b
16	Hexadecimal	4df1527
20	Vigesimal	15ag207
36	Base36	1cnqcn

Cryptographic Hash Functions

md5	e5a77b998a433953c7e3c2f9de3fde2c
sha1	e1077bf10597c4c377a21cc3985b8be19a4b6d4d
sha256	32cff253540c89095c25662481869176137469b54ea47bd13ad560e7917c8170
sha512	71335a492e6ca35bffb96e64e3543e8b67ef56a2f5c8d5a806298e8250810cac349006c020cab50ee21b7b8db6fc8b60993e94273aeea855e3980b6b9b54bb3d
ripemd-160	f42c837289234ac0db30a4280347a0d56891411f

81728807 as geometric shapes

Circle

Radius = n

Diameter	163457614
Circumference	513517239.31572
Area	2.0984575671603E+16

Sphere

Radius = n

Volume	2.2867257800552E+24
Surface area	8.3938302686414E+16
Circumference	513517239.31572

Square

Length = n

Perimeter	326915228
Area	6679597893643249
Diagonal	115581987.29597

Cube

Length = n

Surface area	40077587361859494
Volume	5.4591556708718E+23
Space diagonal	141558446.16599

Equilateral Triangle

Length = n

Perimeter	245186421
Area	2.89235073148E+15
Altitude	70779223.082995

Triangular Pyramid

Length = n

Surface area	2.89235073148E+15
Volume	6.4336766573774E+22
Height	38527329.098658