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

20130721 (number)

20130721 is an odd 8-digits composite number following 20130720 and preceding 20130722. In scientific notation, it is written as 2.0130721 × 10^7. The sum of its digits is 16. It has a total of 2 prime factors and 4 positive divisors. There are 18582192 positive integers (up to 20130721) that are relatively prime to 20130721.

Interesting facts

20130721 has 4 divisors, whose sum is 21679252
The reverse of 20130721 is 12703102
Previous prime number is 13

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 16
Digital Root 7

Name

Name	twenty million one hundred thirty thousand seven hundred twenty-one

Notation

Scientific notation	2.0130721 × 10^7
Engineering notation	2.0130721 × 10^6

Prime Factorization of 20130721

Prime Factorization 13 × 1548517

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	20130721	Product of the distinct prime numbers

The prime factorization of 20130721 is 13 × 1548517. Since it has a total of 2 prime factors.

Most popular turbo-numbers

7, 3, 34, 72, 875, 649, 7960, 3713, 71809, 62041, 907629, 621245, 3498409, 4308141, 72141933, 57355029, 135451274, 323798969, 2538201659, 3059664690

Basic calculations (n = 20130721)

Multiplication

n×y

n×2	40261442
n×3	60392163
n×4	80522884
n×5	100653605

Division

n÷y

n÷2	10065360.5
n÷3	6710240.3333333
n÷3	5032680.25
n÷5	4026144.2

Exponentiation

n^y

n²	405245927979841
n³	8.1578927125483E+21
n⁴	1.6422426214424E+29
n⁵	3.3059528026566E+36

Nth Root

^y√n

²√n	4486.727203653
³√n	272.03186351777
⁴√n	66.983036685813
⁵√n	28.891618126673

Divisors of 20130721

1, 13, 1548517, 20130721

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	-20130720	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 20130721 can be divided by 4 positive divisors. The sum of these divisors (counting 20130721) is 1, the average is 0.25.

Base conversion 20130721

Base	System	Value
2	Binary	1001100110010101110100001
3	Ternary	1101212202011021
4	Quaternary	1030302232201
5	Quinary	20123140341
6	Senary	1555245441
8	Octal	114625641
10	Decimal	20130721
12	Duodecimal	68a9881
16	Hexadecimal	1332ba1
20	Vigesimal	65g6g1
36	Base36	bzgyp

Cryptographic Hash Functions

md5	77f2c556b5eef1a4e6d2b353407bd304
sha1	af02ef2d95b96590b6bd0416c0eadb54c75c3ff5
sha256	4b2a1f6fae7d0c40d437494deaf66aa91946eb3ebc1d3e62085a6283f381f884
sha512	c9c1c8a3b1da27d5f78f6d0696e7837bc37e7c858257a936f63d746aaa71ef3a2f0c7824acb159e69f846b51b859dc2705ad0375796e952147266d86788c8bab
ripemd-160	bd3ea3d63e5ebba0c9dd256c721225a685dfe205

20130721 as geometric shapes

Circle

Radius = n

Diameter	40261442
Circumference	126485050.41013
Area	1.2731176302386E+15

Sphere

Radius = n

Volume	3.417170108602E+22
Surface area	5.0924705209546E+15
Circumference	126485050.41013

Square

Length = n

Perimeter	80522884
Area	405245927979841
Diagonal	28469138.658549

Cube

Length = n

Surface area	2431475567879046
Volume	8.1578927125483E+21
Space diagonal	34867431.564994

Equilateral Triangle

Length = n

Perimeter	60392163
Area	1.7547663420537E+14
Altitude	17433715.782497

Triangular Pyramid

Length = n

Surface area	1.7547663420537E+14
Volume	9.6141687620587E+20
Height	9489712.886183