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

20391389 (number)

20391389 is an odd 8-digits composite number following 20391388 and preceding 20391390. In scientific notation, it is written as 2.0391389 × 10^7. The sum of its digits is 35. It has a total of 3 prime factors and 8 positive divisors. There are 19278000 positive integers (up to 20391389) that are relatively prime to 20391389.

Interesting facts

20391389 has 8 divisors, whose sum is 21509280
The reverse of 20391389 is 98319302
Previous prime number is 701

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 35
Digital Root 8

Name

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

Notation

Scientific notation	2.0391389 × 10^7
Engineering notation	2.0391389 × 10^6

Prime Factorization of 20391389

Prime Factorization 19 × 701 × 1531

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	20391389	Product of the distinct prime numbers

The prime factorization of 20391389 is 19 × 701 × 1531. Since it has a total of 3 prime factors.

Most popular turbo-numbers

6, 7, 37, 33, 734, 75, 8049, 4640, 82183, 65225, 303385, 967302, 8178551, 4619987, 5675364, 35813447, 937331463, 936344587, 1054268556, 1319186898

Basic calculations (n = 20391389)

Multiplication

n×y

n×2	40782778
n×3	61174167
n×4	81565556
n×5	101956945

Division

n÷y

n÷2	10195694.5
n÷3	6797129.6666667
n÷3	5097847.25
n÷5	4078277.8

Exponentiation

n^y

n²	415808745349321
n³	8.4789178760199E+21
n⁴	1.7289691270898E+29
n⁵	3.5256082039478E+36

Nth Root

^y√n

²√n	4515.6825619169
³√n	273.20099069501
⁴√n	67.198828575481
⁵√n	28.966055730437

Divisors of 20391389

1, 19, 701, 1531, 13319, 29089, 1073231, 20391389

8 divisors

τ	Total Divisors	8	Total number of the positive divisors of n
σ	Sum of Divisors	1	Sum of all the positive divisors of n
s	Aliquot Sum	-20391388	Sum of the proper positive divisors of n
A	Arithmetic Mean	0.125	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	8	Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 20391389 can be divided by 8 positive divisors. The sum of these divisors (counting 20391389) is 1, the average is 0.125.

Base conversion 20391389

Base	System	Value
2	Binary	1001101110010010111011101
3	Ternary	1102100222201122
4	Quaternary	1031302113131
5	Quinary	20210011024
6	Senary	2005020325
8	Octal	115622735
10	Decimal	20391389
12	Duodecimal	69b46a5
16	Hexadecimal	13725dd
20	Vigesimal	678i99
36	Base36	c523h

Cryptographic Hash Functions

md5	8b12c2b926e8aaa97d83fc0e068b0b5b
sha1	ebed4977727f3add9ed4a073b39dc1d1f7fe3381
sha256	4e39e44f68a3dc131e70fdf11d43bd90fcdf473a41991091829d59153a59e83d
sha512	5b925d5ea70c96709fe0feeb40e5fd31b4b64f91925c0350a0586ebbabfcf6322cea0b690e52d758a5cc26b80080b8a4d661afcc226edff17852e28120573c49
ripemd-160	d1e48566a5ce8d794a19fddc28dfa613c6458660

20391389 as geometric shapes

Circle

Radius = n

Diameter	40782778
Circumference	128122875.75778
Area	1.3063016996878E+15

Sphere

Radius = n

Volume	3.5516408146261E+22
Surface area	5.2252067987513E+15
Circumference	128122875.75778

Square

Length = n

Perimeter	81565556
Area	415808745349321
Diagonal	28837778.879426

Cube

Length = n

Surface area	2494852472095926
Volume	8.4789178760199E+21
Space diagonal	35318921.784901

Equilateral Triangle

Length = n

Perimeter	61174167
Area	1.8005046829412E+14
Altitude	17659460.892451

Triangular Pyramid

Length = n

Surface area	1.8005046829412E+14
Volume	9.9925005454292E+20
Height	9612592.9598085