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

21397939 (number)

21397939 is an odd 8-digits composite number following 21397938 and preceding 21397940. In scientific notation, it is written as 2.1397939 × 10^7. The sum of its digits is 43. It has a total of 2 prime factors and 4 positive divisors. There are 21365656 positive integers (up to 21397939) that are relatively prime to 21397939.

Interesting facts

21397939 has 4 divisors, whose sum is 21430224
The reverse of 21397939 is 93979312
Previous prime number is 677

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 43
Digital Root 7

Name

Name	twenty-one million three hundred ninety-seven thousand nine hundred thirty-nine

Notation

Scientific notation	2.1397939 × 10^7
Engineering notation	2.1397939 × 10^6

Prime Factorization of 21397939

Prime Factorization 677 × 31607

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	21397939	Product of the distinct prime numbers

The prime factorization of 21397939 is 677 × 31607. Since it has a total of 2 prime factors.

Most popular turbo-numbers

2, 5, 25, 21, 984, 176, 1941, 1813, 39468, 29754, 739956, 99080, 795554, 7248132, 35423237, 48245532, 691774523, 483341530, 3538387260, 1943927274

Basic calculations (n = 21397939)

Multiplication

n×y

n×2	42795878
n×3	64193817
n×4	85591756
n×5	106989695

Division

n÷y

n÷2	10698969.5
n÷3	7132646.3333333
n÷3	5349484.75
n÷5	4279587.8

Exponentiation

n^y

n²	457871793447721
n³	9.7975127060149E+21
n⁴	2.0964657923503E+29
n⁵	4.4860047140299E+36

Nth Root

^y√n

²√n	4625.7906351239
³√n	277.62419676718
⁴√n	68.013165160312
⁵√n	29.246532902038

Divisors of 21397939

1, 677, 31607, 21397939

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	-21397938	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 21397939 can be divided by 4 positive divisors. The sum of these divisors (counting 21397939) is 1, the average is 0.25.

Base conversion 21397939

Base	System	Value
2	Binary	1010001101000000110110011
3	Ternary	1111021010110021
4	Quaternary	1101220012303
5	Quinary	20434213224
6	Senary	2042344311
8	Octal	121500663
10	Decimal	21397939
12	Duodecimal	71bb097
16	Hexadecimal	14681b3
20	Vigesimal	6deegj
36	Base36	cqmr7

Cryptographic Hash Functions

md5	a71b6e9386dbba7a7f5d11b6e33e56aa
sha1	893ac6ea08c52b388d45d135b742d8eafb1785f9
sha256	189124968839ba5e2b7da4f1d0abadb8967a0cfc9e40f28a870faff00f39e04f
sha512	eb0bb31a1a6144864f0fd2523fabd1a878d00a748f5eb56dec10f0a1b7ef4013c1dbb6459a4786f758b5d25974746233772676f33294cb8c94b618f45bc17dc6
ripemd-160	ef2a6ba1989237f702a566c148c0228158e89465

21397939 as geometric shapes

Circle

Radius = n

Diameter	42795878
Circumference	134447215.92873
Area	1.4384466625813E+15

Sphere

Radius = n

Volume	4.1039725254226E+22
Surface area	5.7537866503254E+15
Circumference	134447215.92873

Square

Length = n

Perimeter	85591756
Area	457871793447721
Diagonal	30261255.540632

Cube

Length = n

Surface area	2747230760686326
Volume	9.7975127060149E+21
Space diagonal	37062317.52526

Equilateral Triangle

Length = n

Perimeter	64193817
Area	1.9826430240103E+14
Altitude	18531158.76263

Triangular Pyramid

Length = n

Surface area	1.9826430240103E+14
Volume	1.1546479455308E+21
Height	10087085.180211