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

21391844 (number)

21391844 is an even 8-digits composite number following 21391843 and preceding 21391845. In scientific notation, it is written as 2.1391844 × 10^7. The sum of its digits is 32. It has a total of 3 prime factors and 6 positive divisors. There are 10695920 positive integers (up to 21391844) that are relatively prime to 21391844.

Interesting facts

21391844 has 6 divisors, whose sum is 37435734
The reverse of 21391844 is 44819312
Previous prime number is 2

Basic properties

Is Prime? no
Number parity even
Number length 8
Sum of Digits 32
Digital Root 5

Name

Name	twenty-one million three hundred ninety-one thousand eight hundred forty-four

Notation

Scientific notation	2.1391844 × 10^7
Engineering notation	2.1391844 × 10^6

Prime Factorization of 21391844

Prime Factorization 2 × 2 × 5347961

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	10695922	Product of the distinct prime numbers

The prime factorization of 21391844 is 2 × 2 × 5347961. Since it has a total of 3 prime factors.

Most popular turbo-numbers

3, 7, 4, 47, 777, 741, 9645, 7857, 63271, 51066, 658821, 522162, 7790381, 6275326, 61429001, 12782889, 920702537, 608918369, 2120231073, 5632750706

Basic calculations (n = 21391844)

Multiplication

n×y

n×2	42783688
n×3	64175532
n×4	85567376
n×5	106959220

Division

n÷y

n÷2	10695922
n÷3	7130614.6666667
n÷3	5347961
n÷5	4278368.8

Exponentiation

n^y

n²	457610989720336
n³	9.789142904783E+21
n⁴	2.0940781791283E+29
n⁵	4.4796193731716E+36

Nth Root

^y√n

²√n	4625.1317819063
³√n	277.59783472415
⁴√n	68.00832141662
⁵√n	29.244866592666

Divisors of 21391844

1, 2, 4, 5347961, 10695922, 21391844

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	-21391843	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 21391844 can be divided by 6 positive divisors. The sum of these divisors (counting 21391844) is 1, the average is 0.16666666666667.

Base conversion 21391844

Base	System	Value
2	Binary	1010001100110100111100100
3	Ternary	1111020211002112
4	Quaternary	1101212213210
5	Quinary	20434014334
6	Senary	2042300152
8	Octal	121464744
10	Decimal	21391844
12	Duodecimal	71b7658
16	Hexadecimal	14669e4
20	Vigesimal	6ddjc4
36	Base36	cqi1w

Cryptographic Hash Functions

md5	5cce85426ea2e5ab96ae998c17a48e1d
sha1	2deca71ff427b6068f6297d41d787da965087b64
sha256	5e3f3af15e15c4bc7bc621ea1b566e479ffa0150d79a972c6334fe51d885ed6d
sha512	b23dcaee2f13a594db3ab1ebcf51dac60d03522ba9bc2f1dd1c4a5d2de1ea0e771dea684bbb194bac4ace603e0800b377c139588530f7e85da6077fb136380f9
ripemd-160	d1bd654c423238c85e59a12f0ad969487f628eb2

21391844 as geometric shapes

Circle

Radius = n

Diameter	42783688
Circumference	134408919.91428
Area	1.4376273235074E+15

Sphere

Radius = n

Volume	4.1004665912809E+22
Surface area	5.7505092940294E+15
Circumference	134408919.91428

Square

Length = n

Perimeter	85567376
Area	457610989720336
Diagonal	30252635.90897

Cube

Length = n

Surface area	2745665938322016
Volume	9.789142904783E+21
Space diagonal	37051760.675587

Equilateral Triangle

Length = n

Perimeter	64175532
Area	1.9815137107438E+14
Altitude	18525880.337794

Triangular Pyramid

Length = n

Surface area	1.9815137107438E+14
Volume	1.153661554996E+21
Height	10084211.969657