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

21491639 (number)

21491639 is an odd 8-digits composite number following 21491638 and preceding 21491640. In scientific notation, it is written as 2.1491639 × 10^7. The sum of its digits is 35. It has a total of 3 prime factors and 8 positive divisors. There are 18942336 positive integers (up to 21491639) that are relatively prime to 21491639.

Interesting facts

21491639 has 8 divisors, whose sum is 21787920
The reverse of 21491639 is 93619412
Previous prime number is 109

Basic properties

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

Name

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

Notation

Scientific notation	2.1491639 × 10^7
Engineering notation	2.1491639 × 10^6

Prime Factorization of 21491639

Prime Factorization 377 × 109 × 523

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	21491639	Product of the distinct prime numbers

The prime factorization of 21491639 is 377 × 109 × 523. Since it has a total of 3 prime factors.

Most popular turbo-numbers

6, 9, 78, 62, 920, 721, 3062, 382, 86858, 97031, 799221, 893514, 6022996, 5355569, 18052369, 32469993, 767893315, 988866659, 1139367998, 9523008411

Basic calculations (n = 21491639)

Multiplication

n×y

n×2	42983278
n×3	64474917
n×4	85966556
n×5	107458195

Division

n÷y

n÷2	10745819.5
n÷3	7163879.6666667
n÷3	5372909.75
n÷5	4298327.8

Exponentiation

n^y

n²	461890546906321
n³	9.9267848916232E+21
n⁴	2.1334287732142E+29
n⁵	4.5850881026133E+36

Nth Root

^y√n

²√n	4635.9075702606
³√n	278.02883868314
⁴√n	68.087499368538
⁵√n	29.272101838388

Divisors of 21491639

1, 109, 377, 523, 41093, 57007, 197171, 21491639

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	-21491638	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 21491639 can be divided by 8 positive divisors. The sum of these divisors (counting 21491639) is 1, the average is 0.125.

Base conversion 21491639

Base	System	Value
2	Binary	1010001111110111110110111
3	Ternary	1111102212222122
4	Quaternary	1101332332313
5	Quinary	21000213024
6	Senary	2044350155
8	Octal	121767667
10	Decimal	21491639
12	Duodecimal	724535b
16	Hexadecimal	147efb7
20	Vigesimal	6e691j
36	Base36	csn1z

Cryptographic Hash Functions

md5	e633e13014ef13ed6761dca1a54cec9a
sha1	58cf904bac90a6646a164fa6c53265fa5dab6a73
sha256	adc4f83eef5cd77396abefa51a2bc44bc1045a8269a282422728dbadfcb86681
sha512	3f48f4f9ada0101d2d87db1b1e1e927d7670689e2855c8b7e17255929117f092f12043eb87d10b152e01d85db8fc0bc9e2d51a1b5bbb482ef832963eeb39b0e5
ripemd-160	02619df64b903b25cc323632dd99b08c8f6c12cb

21491639 as geometric shapes

Circle

Radius = n

Diameter	42983278
Circumference	135035950.39201
Area	1.4510719489235E+15

Sphere

Radius = n

Volume	4.1581219319053E+22
Surface area	5.8042877956939E+15
Circumference	135035950.39201

Square

Length = n

Perimeter	85966556
Area	461890546906321
Diagonal	30393767.351427

Cube

Length = n

Surface area	2771343281437926
Volume	9.9267848916232E+21
Space diagonal	37224610.685929

Equilateral Triangle

Length = n

Perimeter	64474917
Area	2.0000447369438E+14
Altitude	18612305.342964

Triangular Pyramid

Length = n

Surface area	2.0000447369438E+14
Volume	1.1698828187078E+21
Height	10131255.783809