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

21489991 (number)

21489991 is an odd 8-digits composite number following 21489990 and preceding 21489992. In scientific notation, it is written as 2.1489991 × 10^7. The sum of its digits is 43. It has a total of 2 prime factors and 4 positive divisors. There are 21436000 positive integers (up to 21489991) that are relatively prime to 21489991.

Interesting facts

21489991 has 4 divisors, whose sum is 21543984
The reverse of 21489991 is 19998412
Previous prime number is 401

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 43
Digital Root 7

Name

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

Notation

Scientific notation	2.1489991 × 10^7
Engineering notation	2.1489991 × 10^6

Prime Factorization of 21489991

Prime Factorization 401 × 53591

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	21489991	Product of the distinct prime numbers

The prime factorization of 21489991 is 401 × 53591. Since it has a total of 2 prime factors.

Most popular turbo-numbers

8, 9, 58, 91, 977, 933, 5116, 1971, 6685, 973, 185444, 646702, 4898039, 2712734, 99128622, 54244672, 660385694, 650442561, 776662230, 6822054606

Basic calculations (n = 21489991)

Multiplication

n×y

n×2	42979982
n×3	64469973
n×4	85959964
n×5	107449955

Division

n÷y

n÷2	10744995.5
n÷3	7163330.3333333
n÷3	5372497.75
n÷5	4297998.2

Exponentiation

n^y

n²	461819713180081
n³	9.9245014798625E+21
n⁴	2.1327744748173E+29
n⁵	4.5833304268854E+36

Nth Root

^y√n

²√n	4635.7298238789
³√n	278.02173199329
⁴√n	68.086194076912
⁵√n	29.27165290191

Divisors of 21489991

1, 401, 53591, 21489991

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	-21489990	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 21489991 can be divided by 4 positive divisors. The sum of these divisors (counting 21489991) is 1, the average is 0.25.

Base conversion 21489991

Base	System	Value
2	Binary	1010001111110100101000111
3	Ternary	1111102210201121
4	Quaternary	1101332211013
5	Quinary	21000134431
6	Senary	2044334411
8	Octal	121764507
10	Decimal	21489991
12	Duodecimal	7244407
16	Hexadecimal	147e947
20	Vigesimal	6e64jb
36	Base36	csls7

Cryptographic Hash Functions

md5	3986b95ec52db410224a69623c916ca4
sha1	d5cfde71940eaadeca812d8faffe5079557edbcc
sha256	9eee7433206bdd49079e886c0c4c1cf4b224d5849401043a87c8f933b57d5bfa
sha512	32cdecec275a702d8810b6b287fe48f5d98827f86204de470927cadb6a647e225c31dce5d7dfb795f4f707c866fd7e72ad7fac0c57c62bad202560a8b61d7f3d
ripemd-160	b411a02cae2ffd73407f335c025dd70c75e4339b

21489991 as geometric shapes

Circle

Radius = n

Diameter	42979982
Circumference	135025595.70262
Area	1.4508494182095E+15

Sphere

Radius = n

Volume	4.1571654586236E+22
Surface area	5.803397672838E+15
Circumference	135025595.70262

Square

Length = n

Perimeter	85959964
Area	461819713180081
Diagonal	30391436.727476

Cube

Length = n

Surface area	2770918279080486
Volume	9.9245014798625E+21
Space diagonal	37221756.266198

Equilateral Triangle

Length = n

Perimeter	64469973
Area	1.999738017912E+14
Altitude	18610878.133099

Triangular Pyramid

Length = n

Surface area	1.999738017912E+14
Volume	1.1696137160511E+21
Height	10130478.909159