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

20145721 (number)

20145721 is an odd 8-digits prime number following 20145720 and preceding 20145722. In scientific notation, it is written as 2.0145721 × 10^7. The sum of its digits is 22. It has a total of 1 prime factors and 2 positive divisors. There are 20145720 positive integers (up to 20145721) that are relatively prime to 20145721.

Interesting facts

20145721 has 2 divisors, whose sum is 20145722
The reverse of 20145721 is 12754102
Previous prime number is 1

Basic properties

Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 22
Digital Root 4

Name

Name	twenty million one hundred forty-five thousand seven hundred twenty-one

Notation

Scientific notation	2.0145721 × 10^7
Engineering notation	2.0145721 × 10^6

Prime Factorization of 20145721

Prime Factorization 20145721

Composite number

ω	Distinct Factors	1	Total number of distinct prime factors
Ω	Total Factors	1	Total number of prime factors
rad	Radical	20145721	Product of the distinct prime numbers

The prime factorization of 20145721 is 20145721. Since it has a total of 1 prime factors.

Most popular turbo-numbers

5, 9, 27, 57, 237, 969, 5658, 3956, 24347, 78374, 716895, 352250, 970407, 2659318, 8855827, 67188804, 22643621, 488634552, 6037675744, 1837557417

Basic calculations (n = 20145721)

Multiplication

n×y

n×2	40291442
n×3	60437163
n×4	80582884
n×5	100728605

Division

n÷y

n÷2	10072860.5
n÷3	6715240.3333333
n÷3	5036430.25
n÷5	4029144.2

Exponentiation

n^y

n²	405850074609841
n³	8.176142370919E+21
n⁴	1.6471428306081E+29
n⁵	3.3182879912582E+36

Nth Root

^y√n

²√n	4488.3984894392
³√n	272.09941309166
⁴√n	66.995510964834
⁵√n	28.895922445049

Divisors of 20145721

1, 20145721

2 divisors

τ	Total Divisors	2	Total number of the positive divisors of n
σ	Sum of Divisors	20145722	Sum of all the positive divisors of n
s	Aliquot Sum	1	Sum of the proper positive divisors of n
A	Arithmetic Mean	10072861	Returns the sum of divisors (σ(n)) divided by the total number of divisors (τ(n))
G	Geometric Mean	4488.3986008375	Returns the nth root of the product of n divisors
H	Harmonic Mean	1.9999999007233	Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 20145721 can be divided by 2 positive divisors. The sum of these divisors (counting 20145721) is 20145722, the average is 10072861.

Base conversion 20145721

Base	System	Value
2	Binary	1001100110110011000111001
3	Ternary	1101220111201211
4	Quaternary	1030312120321
5	Quinary	20124130341
6	Senary	1555443121
8	Octal	114663071
10	Decimal	20145721
12	Duodecimal	68b64a1
16	Hexadecimal	1336639
20	Vigesimal	65i461
36	Base36	bzsjd

Cryptographic Hash Functions

md5	023f7efb9078aaab7bb10b6e548693f0
sha1	78b5406ba9fd20509d8177887df54233ae77f0bf
sha256	af480f1390b02b644dd91139e2d74caaf9b5337340f1c20d1f3037ef72c1745f
sha512	c656e66c3ac715d98e40d3c1cbbc8310bbb84892b6df5dbb76aee6b823476f0df1fb98c5629fa59f95c7224a5bef1da9465f096d69cf17134b86bec882599525
ripemd-160	fb9b047680fa8a4f14dcb9900e3fe58f92177d77

20145721 as geometric shapes

Circle

Radius = n

Diameter	40291442
Circumference	126579298.18974
Area	1.2750156128531E+15

Sphere

Radius = n

Volume	3.4248145076245E+22
Surface area	5.1000624514126E+15
Circumference	126579298.18974

Square

Length = n

Perimeter	80582884
Area	405850074609841
Diagonal	28490351.861984

Cube

Length = n

Surface area	2435100447659046
Volume	8.176142370919E+21
Space diagonal	34893412.327107

Equilateral Triangle

Length = n

Perimeter	60437163
Area	1.7573823736997E+14
Altitude	17446706.163554

Triangular Pyramid

Length = n

Surface area	1.7573823736997E+14
Volume	9.6356761907059E+20
Height	9496783.9539948