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

21001439 (number)

21001439 is an odd 8-digits composite number following 21001438 and preceding 21001440. In scientific notation, it is written as 2.1001439 × 10^7. The sum of its digits is 20. It has a total of 2 prime factors and 4 positive divisors. There are 20735520 positive integers (up to 21001439) that are relatively prime to 21001439.

Interesting facts

21001439 has 4 divisors, whose sum is 21267360
The reverse of 21001439 is 93410012
Previous prime number is 79

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 20
Digital Root 2

Name

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

Notation

Scientific notation	2.1001439 × 10^7
Engineering notation	2.1001439 × 10^6

Prime Factorization of 21001439

Prime Factorization 79 × 265841

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	21001439	Product of the distinct prime numbers

The prime factorization of 21001439 is 79 × 265841. Since it has a total of 2 prime factors.

Most popular turbo-numbers

3, 8, 69, 44, 822, 545, 5471, 4814, 8110, 6241, 490742, 229691, 5798722, 1921614, 46077265, 77477251, 421281255, 711332712, 2241031799, 5532331178

Basic calculations (n = 21001439)

Multiplication

n×y

n×2	42002878
n×3	63004317
n×4	84005756
n×5	105007195

Division

n÷y

n÷2	10500719.5
n÷3	7000479.6666667
n÷3	5250359.75
n÷5	4200287.8

Exponentiation

n^y

n²	441060440070721
n³	9.2629039274584E+21
n⁴	1.9453431179538E+29
n⁵	4.0855004825776E+36

Nth Root

^y√n

²√n	4582.7327000383
³√n	275.89871922734
⁴√n	67.695883922424
⁵√n	29.137333889568

Divisors of 21001439

1, 79, 265841, 21001439

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	-21001438	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 21001439 can be divided by 4 positive divisors. The sum of these divisors (counting 21001439) is 1, the average is 0.25.

Base conversion 21001439

Base	System	Value
2	Binary	1010000000111010011011111
3	Ternary	1110111222120002
4	Quaternary	1100013103133
5	Quinary	20334021224
6	Senary	2030044515
8	Octal	120072337
10	Decimal	21001439
12	Duodecimal	704973b
16	Hexadecimal	14074df
20	Vigesimal	6b53bj
36	Base36	ci4tb

Cryptographic Hash Functions

md5	90850b9d446d084a6ad726207ed878c8
sha1	b8f763e0a91577e2be7c12fa8b07c9d67f364acc
sha256	e48e96ebf88cfc93f9e2a770e79b9f63a0afb99fdcbdf8deb02990a0f0a30ab5
sha512	bfb435247e966c7138e68ce70c1b191a5480776030c4f0ab3f0496a42e69654e15396b72b82feb0759dbdc0dfc7a062e067f0facacf21bb7fca5ce3029073012
ripemd-160	4d585e16193ad1ee0a40eab6b35abd5d1d65a00c

21001439 as geometric shapes

Circle

Radius = n

Diameter	42002878
Circumference	131955932.95443
Area	1.3856322383153E+15

Sphere

Radius = n

Volume	3.8800361239215E+22
Surface area	5.542528953261E+15
Circumference	131955932.95443

Square

Length = n

Perimeter	84005756
Area	441060440070721
Diagonal	29700519.863151

Cube

Length = n

Surface area	2646362640424326
Volume	9.2629039274584E+21
Space diagonal	36375559.380059

Equilateral Triangle

Length = n

Perimeter	63004317
Area	1.9098477285279E+14
Altitude	18187779.690029

Triangular Pyramid

Length = n

Surface area	1.9098477285279E+14
Volume	1.0916436967642E+21
Height	9900173.2877171