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

20391388 (number)

20391388 is an even 8-digits composite number following 20391387 and preceding 20391389. In scientific notation, it is written as 2.0391388 × 10^7. The sum of its digits is 34. It has a total of 3 prime factors and 6 positive divisors. There are 10195692 positive integers (up to 20391388) that are relatively prime to 20391388.

Interesting facts

20391388 has 6 divisors, whose sum is 35684936
The reverse of 20391388 is 88319302
Previous prime number is 2

Basic properties

Is Prime? no
Number parity even
Number length 8
Sum of Digits 34
Digital Root 7

Name

Name	twenty million three hundred ninety-one thousand three hundred eighty-eight

Notation

Scientific notation	2.0391388 × 10^7
Engineering notation	2.0391388 × 10^6

Prime Factorization of 20391388

Prime Factorization 2 × 2 × 5097847

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	10195694	Product of the distinct prime numbers

The prime factorization of 20391388 is 2 × 2 × 5097847. Since it has a total of 3 prime factors.

Most popular turbo-numbers

7, 1, 54, 3, 69, 943, 8978, 8053, 36156, 29506, 480977, 658552, 7779147, 8820483, 49129700, 14153625, 470334741, 545496385, 3252518540, 8456796735

Basic calculations (n = 20391388)

Multiplication

n×y

n×2	40782776
n×3	61174164
n×4	81565552
n×5	101956940

Division

n÷y

n÷2	10195694
n÷3	6797129.3333333
n÷3	5097847
n÷5	4078277.6

Exponentiation

n^y

n²	415808704566544
n³	8.4789166285938E+21
n⁴	1.7289687879331E+29
n⁵	3.5256073394633E+36

Nth Root

^y√n

²√n	4515.6824511916
³√n	273.20098622906
⁴√n	67.198827751618
⁵√n	28.966055446336

Divisors of 20391388

1, 2, 4, 5097847, 10195694, 20391388

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	-20391387	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 20391388 can be divided by 6 positive divisors. The sum of these divisors (counting 20391388) is 1, the average is 0.16666666666667.

Base conversion 20391388

Base	System	Value
2	Binary	1001101110010010111011100
3	Ternary	1102100222201121
4	Quaternary	1031302113130
5	Quinary	20210011023
6	Senary	2005020324
8	Octal	115622734
10	Decimal	20391388
12	Duodecimal	69b46a4
16	Hexadecimal	13725dc
20	Vigesimal	678i98
36	Base36	c523g

Cryptographic Hash Functions

md5	44ff04f920e61952f72737132c0a890a
sha1	833c4c86e76dc44366bc206dd17fe9a0e7c67cd8
sha256	2b41d6d576aedacba183128e224dce913202403b901efb912279b2ff9d6ae8f6
sha512	2a46be82422aefd902d8fffb838bb87e726064815805a24266f342b4fb1379108e802c8aca4d7211f754e2cf1dcd95b242e644cfc61ed9c713300155d70dfc7f
ripemd-160	439439e5b8f9249836d05c0ea70ea289f0cb7a12

20391388 as geometric shapes

Circle

Radius = n

Diameter	40782776
Circumference	128122869.4746
Area	1.3063015715649E+15

Sphere

Radius = n

Volume	3.5516402921054E+22
Surface area	5.2252062862598E+15
Circumference	128122869.4746

Square

Length = n

Perimeter	81565552
Area	415808704566544
Diagonal	28837777.465212

Cube

Length = n

Surface area	2494852227399264
Volume	8.4789166285938E+21
Space diagonal	35318920.05285

Equilateral Triangle

Length = n

Perimeter	61174164
Area	1.8005045063466E+14
Altitude	17659460.026425

Triangular Pyramid

Length = n

Surface area	1.8005045063466E+14
Volume	9.9924990753234E+20
Height	9612592.488404