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

21439991 (number)

21439991 is an odd 8-digits composite number following 21439990 and preceding 21439992. In scientific notation, it is written as 2.1439991 × 10^7. The sum of its digits is 38. It has a total of 2 prime factors and 4 positive divisors. There are 21427800 positive integers (up to 21439991) that are relatively prime to 21439991.

Interesting facts

21439991 has 4 divisors, whose sum is 21452184
The reverse of 21439991 is 19993412
Previous prime number is 2131

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 38
Digital Root 2

Name

Name	twenty-one million four hundred thirty-nine thousand nine hundred ninety-one

Notation

Scientific notation	2.1439991 × 10^7
Engineering notation	2.1439991 × 10^6

Prime Factorization of 21439991

Prime Factorization 2131 × 10061

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	21439991	Product of the distinct prime numbers

The prime factorization of 21439991 is 2131 × 10061. Since it has a total of 2 prime factors.

Most popular turbo-numbers

8, 3, 75, 44, 218, 727, 6195, 8654, 77437, 49794, 145148, 412679, 9705417, 4854516, 46045311, 2235154, 162335270, 879902718, 3353852865, 2741919202

Basic calculations (n = 21439991)

Multiplication

n×y

n×2	42879982
n×3	64319973
n×4	85759964
n×5	107199955

Division

n÷y

n÷2	10719995.5
n÷3	7146663.6666667
n÷3	5359997.75
n÷5	4287998.2

Exponentiation

n^y

n²	459673214080081
n³	9.855389572818E+21
n⁴	2.1129946374271E+29
n⁵	4.5302586009486E+36

Nth Root

^y√n

²√n	4630.333789264
³√n	277.80594344919
⁴√n	68.046556042639
⁵√n	29.258019144166

Divisors of 21439991

1, 2131, 10061, 21439991

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	-21439990	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 21439991 can be divided by 4 positive divisors. The sum of these divisors (counting 21439991) is 1, the average is 0.25.

Base conversion 21439991

Base	System	Value
2	Binary	1010001110010010111110111
3	Ternary	1111100021010202
4	Quaternary	1101302113313
5	Quinary	20442034431
6	Senary	2043311115
8	Octal	121622767
10	Decimal	21439991
12	Duodecimal	721b49b
16	Hexadecimal	14725f7
20	Vigesimal	6djjjb
36	Base36	crj7b

Cryptographic Hash Functions

md5	86948b79d5c0dd1273db23c6e661cddd
sha1	0b28c734bdd803678ce5f7501f3acf013cc3ac3c
sha256	b9e3f38cfb9e773f621943f8cc7aa6e6f5cf4e08271c0a281a6b08cd4c9333b8
sha512	98d374381b9ca2ae98a698550c2dd70de63bc01dc6ed210de023c9c4f9df2055b1bc492be6b22dfc9b040e16ab61ee7183ce66e780bcfb5e9c493ec06092855d
ripemd-160	5914171e6facebe388c3bb461ef3a80d7359f5ec

21439991 as geometric shapes

Circle

Radius = n

Diameter	42879982
Circumference	134711436.43726
Area	1.444105992406E+15

Sphere

Radius = n

Volume	4.1282159306974E+22
Surface area	5.776423969624E+15
Circumference	134711436.43726

Square

Length = n

Perimeter	85759964
Area	459673214080081
Diagonal	30320726.049357

Cube

Length = n

Surface area	2758039284480486
Volume	9.855389572818E+21
Space diagonal	37135153.725819

Equilateral Triangle

Length = n

Perimeter	64319973
Area	1.990443404163E+14
Altitude	18567576.86291

Triangular Pyramid

Length = n

Surface area	1.990443404163E+14
Volume	1.1614687996958E+21
Height	10106908.683119