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

20105721 (number)

20105721 is an odd 8-digits composite number following 20105720 and preceding 20105722. In scientific notation, it is written as 2.0105721 × 10^7. The sum of its digits is 18. It has a total of 3 prime factors and 6 positive divisors. There are 13403808 positive integers (up to 20105721) that are relatively prime to 20105721.

Interesting facts

20105721 has 6 divisors, whose sum is 29041610
The reverse of 20105721 is 12750102
Previous prime number is 3

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 18
Digital Root 9

Name

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

Notation

Scientific notation	2.0105721 × 10^7
Engineering notation	2.0105721 × 10^6

Prime Factorization of 20105721

Prime Factorization 3 × 3 × 2233969

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	6701907	Product of the distinct prime numbers

The prime factorization of 20105721 is 3 × 3 × 2233969. Since it has a total of 3 prime factors.

Most popular turbo-numbers

4, 8, 58, 71, 569, 409, 5583, 5003, 661, 27702, 217261, 273395, 8540416, 6570420, 67120036, 87123405, 261191660, 23053751, 9586934792, 9127758196

Basic calculations (n = 20105721)

Multiplication

n×y

n×2	40211442
n×3	60317163
n×4	80422884
n×5	100528605

Division

n÷y

n÷2	10052860.5
n÷3	6701907
n÷3	5026430.25
n÷5	4021144.2

Exponentiation

n^y

n²	404240016929841
n³	8.1275369974267E+21
n⁴	1.6340999128744E+29
n⁵	3.2854756934377E+36

Nth Root

^y√n

²√n	4483.9403430465
³√n	271.91920628778
⁴√n	66.962230720358
⁵√n	28.884438557488

Divisors of 20105721

1, 3, 9, 2233969, 6701907, 20105721

6 divisors

τ	Total Divisors	6	Total number of the positive divisors of n
σ	Sum of Divisors	1	Sum of all the positive divisors of n
s	Aliquot Sum	-20105720	Sum of the proper positive divisors of n
A	Arithmetic Mean	0.16666666666667	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	6	Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 20105721 can be divided by 6 positive divisors. The sum of these divisors (counting 20105721) is 1, the average is 0.16666666666667.

Base conversion 20105721

Base	System	Value
2	Binary	1001100101100100111111001
3	Ternary	1101211110212100
4	Quaternary	1030230213321
5	Quinary	20121340341
6	Senary	1554534013
8	Octal	114544771
10	Decimal	20105721
12	Duodecimal	6897309
16	Hexadecimal	132c9f9
20	Vigesimal	65d461
36	Base36	byxo9

Cryptographic Hash Functions

md5	42d930e9139fddc8669c19d142819c16
sha1	5012afd50e0c704fb3b84c3cb56cd723ce9e4eec
sha256	d0dd49ceb866d0dc46b0b80b8b010d846938b0994fe2d67439620b49dbf613ee
sha512	7bc61a23ae2052fda064c51c24eabb1e5f1b413dd9d067772ba59756f290443a29d86ea51909a154ef7baaa05f332965916769b6219af9369e427edd9684333c
ripemd-160	5385e03032275467b2c095eb1b4f150c8da54d39

20105721 as geometric shapes

Circle

Radius = n

Diameter	40211442
Circumference	126327970.77745
Area	1.2699574674738E+15

Sphere

Radius = n

Volume	3.404454736386E+22
Surface area	5.0798298698952E+15
Circumference	126327970.77745

Square

Length = n

Perimeter	80422884
Area	404240016929841
Diagonal	28433783.31949

Cube

Length = n

Surface area	2425440101579046
Volume	8.1275369974267E+21
Space diagonal	34824130.294805

Equilateral Triangle

Length = n

Perimeter	60317163
Area	1.7504106194375E+14
Altitude	17412065.147402

Triangular Pyramid

Length = n

Surface area	1.7504106194375E+14
Volume	9.5783942087082E+20
Height	9477927.7731632