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

20138561 (number)

20138561 is an odd 8-digits composite number following 20138560 and preceding 20138562. In scientific notation, it is written as 2.0138561 × 10^7. The sum of its digits is 26. It has a total of 2 prime factors and 4 positive divisors. There are 19488900 positive integers (up to 20138561) that are relatively prime to 20138561.

Interesting facts

20138561 has 4 divisors, whose sum is 20788224
The reverse of 20138561 is 16583102
Previous prime number is 31

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 26
Digital Root 8

Name

Name	twenty million one hundred thirty-eight thousand five hundred sixty-one

Notation

Scientific notation	2.0138561 × 10^7
Engineering notation	2.0138561 × 10^6

Prime Factorization of 20138561

Prime Factorization 31 × 649631

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	20138561	Product of the distinct prime numbers

The prime factorization of 20138561 is 31 × 649631. Since it has a total of 2 prime factors.

Most popular turbo-numbers

4, 7, 95, 64, 679, 693, 949, 5813, 74738, 64795, 234498, 275788, 451159, 4050017, 39348155, 10805671, 488406419, 842319108, 8334081084, 5823927470

Basic calculations (n = 20138561)

Multiplication

n×y

n×2	40277122
n×3	60415683
n×4	80554244
n×5	100692805

Division

n÷y

n÷2	10069280.5
n÷3	6712853.6666667
n÷3	5034640.25
n÷5	4027712.2

Exponentiation

n^y

n²	405561639150721
n³	8.1674278092968E+21
n⁴	1.6448024315062E+29
n⁵	3.3123954099836E+36

Nth Root

^y√n

²√n	4487.6008066672
³√n	272.0671736126
⁴√n	66.989557444927
⁵√n	28.893868170357

Divisors of 20138561

1, 31, 649631, 20138561

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	-20138560	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 20138561 can be divided by 4 positive divisors. The sum of these divisors (counting 20138561) is 1, the average is 0.25.

Base conversion 20138561

Base	System	Value
2	Binary	1001100110100101001000001
3	Ternary	1101220010220122
4	Quaternary	1030310221001
5	Quinary	20123413221
6	Senary	1555350025
8	Octal	114645101
10	Decimal	20138561
12	Duodecimal	68b2315
16	Hexadecimal	1334a41
20	Vigesimal	65h681
36	Base36	bzn0h

Cryptographic Hash Functions

md5	519d73da6bc388e15f3323817e7ea59d
sha1	69281ceb258cd4f912ff60723ecd33952e752974
sha256	7192b0b15a879690bc919e4dd5f61c182125e1d7d9fd673363459ffbd3fcd77e
sha512	a51ffd12e9c04d79fb77b162df530653a1699cc2bdbd4e1ad7308f47d7eb96fc9496189a7f0d526c5238d151366f4246ebb1d10eb38bd4a57b87e7bc4a6d059d
ripemd-160	3f7414ef01a6856f051995be72643da1a3636310

20138561 as geometric shapes

Circle

Radius = n

Diameter	40277122
Circumference	126534310.58294
Area	1.2741094661337E+15

Sphere

Radius = n

Volume	3.4211641605882E+22
Surface area	5.096437864535E+15
Circumference	126534310.58294

Square

Length = n

Perimeter	80554244
Area	405561639150721
Diagonal	28480226.092878

Cube

Length = n

Surface area	2433369834904326
Volume	8.1674278092968E+21
Space diagonal	34881010.843325

Equilateral Triangle

Length = n

Perimeter	60415683
Area	1.7561334115249E+14
Altitude	17440505.421663

Triangular Pyramid

Length = n

Surface area	1.7561334115249E+14
Volume	9.6254059813422E+20
Height	9493408.697626