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

21491489 (number)

21491489 is an odd 8-digits composite number following 21491488 and preceding 21491490. In scientific notation, it is written as 2.1491489 × 10^7. The sum of its digits is 38. It has a total of 2 prime factors and 4 positive divisors. There are 20360340 positive integers (up to 21491489) that are relatively prime to 21491489.

Interesting facts

21491489 has 4 divisors, whose sum is 22622640
The reverse of 21491489 is 98419412
Previous prime number is 19

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 ninety-one thousand four hundred eighty-nine

Notation

Scientific notation	2.1491489 × 10^7
Engineering notation	2.1491489 × 10^6

Prime Factorization of 21491489

Prime Factorization 19 × 1131131

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	21491489	Product of the distinct prime numbers

The prime factorization of 21491489 is 19 × 1131131. Since it has a total of 2 prime factors.

Most popular turbo-numbers

2, 7, 9, 20, 868, 83, 3597, 9422, 73987, 23318, 102640, 160301, 8183958, 6583657, 55883095, 98489835, 269729021, 640779519, 242986194, 9023074100

Basic calculations (n = 21491489)

Multiplication

n×y

n×2	42982978
n×3	64474467
n×4	85965956
n×5	107457445

Division

n÷y

n÷2	10745744.5
n÷3	7163829.6666667
n÷3	5372872.25
n÷5	4298297.8

Exponentiation

n^y

n²	461884099437121
n³	9.9265770423278E+21
n⁴	2.1333692131284E+29
n⁵	4.5849280976888E+36

Nth Root

^y√n

²√n	4635.8913921704
³√n	278.0281918514
⁴√n	68.08738056476
⁵√n	29.27206097759

Divisors of 21491489

1, 19, 1131131, 21491489

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	-21491488	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 21491489 can be divided by 4 positive divisors. The sum of these divisors (counting 21491489) is 1, the average is 0.25.

Base conversion 21491489

Base	System	Value
2	Binary	1010001111110111100100001
3	Ternary	1111102212210002
4	Quaternary	1101332330201
5	Quinary	21000211424
6	Senary	2044345345
8	Octal	121767441
10	Decimal	21491489
12	Duodecimal	7245255
16	Hexadecimal	147ef21
20	Vigesimal	6e68e9
36	Base36	csmxt

Cryptographic Hash Functions

md5	f80de21a507469d987d38232d9bca195
sha1	52cffa3257aa84e5184d04be6eafa53c1e1c40fb
sha256	66ec82c59890051f754216772dd2823d815c500921a03608fcd227cd71683802
sha512	fcfbd99633e50e59a9b224c014091828bd8b7bddcc6e7e46dbf20d9e62f841449350b2aeb497269f0ccf514210675e61d93522633383c6fec62b43b5d82f7f9c
ripemd-160	cd22f357b5d2317fe06fb173142bc39257cb4ca6

21491489 as geometric shapes

Circle

Radius = n

Diameter	42982978
Circumference	135035007.91421
Area	1.4510516936016E+15

Sphere

Radius = n

Volume	4.158034868196E+22
Surface area	5.8042067744064E+15
Circumference	135035007.91421

Square

Length = n

Perimeter	85965956
Area	461884099437121
Diagonal	30393555.219392

Cube

Length = n

Surface area	2771304596622726
Volume	9.9265770423278E+21
Space diagonal	37224350.878308

Equilateral Triangle

Length = n

Perimeter	64474467
Area	2.0000168185832E+14
Altitude	18612175.439154

Triangular Pyramid

Length = n

Surface area	2.0000168185832E+14
Volume	1.1698583234334E+21
Height	10131185.073131