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

81723013 (number)

81723013 is an odd 8-digits composite number following 81723012 and preceding 81723014. In scientific notation, it is written as 8.1723013 × 10^7. The sum of its digits is 25. It has a total of 2 prime factors and 4 positive divisors. There are 81594880 positive integers (up to 81723013) that are relatively prime to 81723013.

Interesting facts

81723013 has 4 divisors, whose sum is 81851148
The reverse of 81723013 is 31032718
Previous prime number is 641

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 25
Digital Root 7

Name

Name	eighty-one million seven hundred twenty-three thousand thirteen

Notation

Scientific notation	8.1723013 × 10^7
Engineering notation	8.1723013 × 10^6

Prime Factorization of 81723013

Prime Factorization 641 × 127493

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	81723013	Product of the distinct prime numbers

The prime factorization of 81723013 is 641 × 127493. Since it has a total of 2 prime factors.

Most popular turbo-numbers

4, 2, 77, 39, 936, 574, 9805, 7095, 72613, 81768, 533603, 593916, 8798077, 562166, 38263300, 45145072, 524798554, 525543497, 2516352463, 4679816255

Basic calculations (n = 81723013)

Multiplication

n×y

n×2	163446026
n×3	245169039
n×4	326892052
n×5	408615065

Division

n÷y

n÷2	40861506.5
n÷3	27241004.333333
n÷3	20430753.25
n÷5	16344602.6

Exponentiation

n^y

n²	6678650853798169
n³	5.4579947054741E+23
n⁴	4.4604377226939E+31
n⁵	3.645204099974E+39

Nth Root

^y√n

²√n	9040.078152317
³√n	433.95842402947
⁴√n	95.079325577736
⁵√n	38.235684906266

Divisors of 81723013

1, 641, 127493, 81723013

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	-81723012	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 81723013 can be divided by 4 positive divisors. The sum of these divisors (counting 81723013) is 1, the average is 0.25.

Base conversion 81723013

Base	System	Value
2	Binary	100110111101111111010000101
3	Ternary	12200202221220021
4	Quaternary	10313233322011
5	Quinary	131410114023
6	Senary	12035335141
8	Octal	467577205
10	Decimal	81723013
12	Duodecimal	234514b1
16	Hexadecimal	4defe85
20	Vigesimal	15af7ad
36	Base36	1cnlvp

Cryptographic Hash Functions

md5	69393f933acf3cefbb76380903d3fae8
sha1	b034f81bcd2fd599a2406c1980b4da51193667bf
sha256	8a8a5bb6e683a9f059557f67300cca5d06327e60b0702546f38960cd28d1dc95
sha512	4900d0782624d95d56634c497a5ce0d259285135b8e461e3d3895c12ca386f6943f29c554b1675ccbf82b7b655eefa68a12454ac81ea33c1b3317e624d0f67b4
ripemd-160	7c67766f3b42b0a8c6edeafcac5745dbcc9b5eaa

81723013 as geometric shapes

Circle

Radius = n

Diameter	163446026
Circumference	513480834.54005
Area	2.0981600458184E+16

Sphere

Radius = n

Volume	2.2862394760066E+24
Surface area	8.3926401832734E+16
Circumference	513480834.54005

Square

Length = n

Perimeter	326892052
Area	6678650853798169
Diagonal	115573793.34259

Cube

Length = n

Surface area	40071905122789014
Volume	5.4579947054741E+23
Space diagonal	141548410.66361

Equilateral Triangle

Length = n

Perimeter	245169039
Area	2.8919406511979E+15
Altitude	70774205.331806

Triangular Pyramid

Length = n

Surface area	2.8919406511979E+15
Volume	6.432308446535E+22
Height	38524597.780864