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

21491289 (number)

21491289 is an odd 8-digits composite number following 21491288 and preceding 21491290. In scientific notation, it is written as 2.1491289 × 10^7. The sum of its digits is 36. It has a total of 3 prime factors and 8 positive divisors. There are 14305752 positive integers (up to 21491289) that are relatively prime to 21491289.

Interesting facts

21491289 has 8 divisors, whose sum is 23915520
The reverse of 21491289 is 98219412
Previous prime number is 863

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 36
Digital Root 9

Name

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

Notation

Scientific notation	2.1491289 × 10^7
Engineering notation	2.1491289 × 10^6

Prime Factorization of 21491289

Prime Factorization 9 × 863 × 2767

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	21491289	Product of the distinct prime numbers

The prime factorization of 21491289 is 9 × 863 × 2767. Since it has a total of 3 prime factors.

Most popular turbo-numbers

9, 1, 44, 61, 987, 126, 4111, 553, 5438, 79422, 207838, 251826, 6646928, 2661299, 77981513, 88842431, 846848173, 585374674, 563747821, 6554709048

Basic calculations (n = 21491289)

Multiplication

n×y

n×2	42982578
n×3	64473867
n×4	85965156
n×5	107456445

Division

n÷y

n÷2	10745644.5
n÷3	7163763
n÷3	5372822.25
n÷5	4298257.8

Exponentiation

n^y

n²	461875502881521
n³	9.9262999144471E+21
n⁴	2.1332898016206E+29
n⁵	4.5847147647381E+36

Nth Root

^y√n

²√n	4635.8698212957
³√n	278.0273294044
⁴√n	68.087222158755
⁵√n	29.272006496172

Divisors of 21491289

1, 9, 863, 2767, 7767, 24903, 2387921, 21491289

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	-21491288	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 21491289 can be divided by 8 positive divisors. The sum of these divisors (counting 21491289) is 1, the average is 0.125.

Base conversion 21491289

Base	System	Value
2	Binary	1010001111110111001011001
3	Ternary	1111102212111200
4	Quaternary	1101332321121
5	Quinary	21000210124
6	Senary	2044344413
8	Octal	121767131
10	Decimal	21491289
12	Duodecimal	7245109
16	Hexadecimal	147ee59
20	Vigesimal	6e6849
36	Base36	csms9

Cryptographic Hash Functions

md5	361ac67e5c5ce26053d990e36e815a3c
sha1	028ddfc48de0568bd1c9f73c3bbd9aa82afcecb7
sha256	3c101d91525b0f1cbff496c9eeec1090329d1fd81e83bd20548f4d0808767f37
sha512	d5be3410914619ad32f95f3987baeb445fb0d435ead946ec093fd5878833a92cb4cb2777de18aa6b11b62903663682ea1f16fb22c214df8d3a0166cd193bff4d
ripemd-160	c964b3321b0fe99f8b487b9d2ed360e95a024977

21491289 as geometric shapes

Circle

Radius = n

Diameter	42982578
Circumference	135033751.27715
Area	1.4510246867257E+15

Sphere

Radius = n

Volume	4.1579187851408E+22
Surface area	5.8040987469027E+15
Circumference	135033751.27715

Square

Length = n

Perimeter	85965156
Area	461875502881521
Diagonal	30393272.37668

Cube

Length = n

Surface area	2771253017289126
Volume	9.9262999144471E+21
Space diagonal	37224004.468146

Equilateral Triangle

Length = n

Perimeter	64473867
Area	1.9999795944055E+14
Altitude	18612002.234073

Triangular Pyramid

Length = n

Surface area	1.9999795944055E+14
Volume	1.1698256635995E+21
Height	10131090.792227