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

21361281 (number)

21361281 is an odd 8-digits composite number following 21361280 and preceding 21361282. In scientific notation, it is written as 2.1361281 × 10^7. The sum of its digits is 24. It has a total of 3 prime factors and 8 positive divisors. There are 14210640 positive integers (up to 21361281) that are relatively prime to 21361281.

Interesting facts

21361281 has 8 divisors, whose sum is 28542144
The reverse of 21361281 is 18216312
Previous prime number is 487

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 24
Digital Root 6

Name

Name	twenty-one million three hundred sixty-one thousand two hundred eighty-one

Notation

Scientific notation	2.1361281 × 10^7
Engineering notation	2.1361281 × 10^6

Prime Factorization of 21361281

Prime Factorization 3 × 487 × 14621

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	21361281	Product of the distinct prime numbers

The prime factorization of 21361281 is 3 × 487 × 14621. Since it has a total of 3 prime factors.

Most popular turbo-numbers

6, 1, 2, 10, 710, 902, 4511, 3930, 49151, 23331, 884352, 814489, 1274216, 4498733, 38707122, 26972918, 626336271, 404439609, 6220349896, 5304235942

Basic calculations (n = 21361281)

Multiplication

n×y

n×2	42722562
n×3	64083843
n×4	85445124
n×5	106806405

Division

n÷y

n÷2	10680640.5
n÷3	7120427
n÷3	5340320.25
n÷5	4272256.2

Exponentiation

n^y

n²	456304325960961
n³	9.7472449283677E+21
n⁴	2.0821363789069E+29
n⁵	4.4477100270152E+36

Nth Root

^y√n

²√n	4621.8265869675
³√n	277.46556832759
⁴√n	67.984017143499
⁵√n	29.236505255523

Divisors of 21361281

1, 3, 487, 1461, 14621, 43863, 7120427, 21361281

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	-21361280	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 21361281 can be divided by 8 positive divisors. The sum of these divisors (counting 21361281) is 1, the average is 0.125.

Base conversion 21361281

Base	System	Value
2	Binary	1010001011111001010000001
3	Ternary	1111012021011120
4	Quaternary	1101133022001
5	Quinary	20432030111
6	Senary	2041502453
8	Octal	121371201
10	Decimal	21361281
12	Duodecimal	71a1a29
16	Hexadecimal	145f281
20	Vigesimal	6da341
36	Base36	cpugx

Cryptographic Hash Functions

md5	5c01b22f793fb827a9c259915845d2e4
sha1	fffc48f15299206563f4024253a935019ce82a10
sha256	cac1c414c28c0520a93b20df63d7a2e166ebd0158f45af57fa771720da379810
sha512	0620f0b8772ad27dfad46a3b37223350d1a7dc8291f945727343e559e2a8065d9d42abc6f3a5e40c4f91b1438f8c6a717849ce765240bdcb8528f7eb855d84ac
ripemd-160	d0f4cb497ddf2d3ecb910ae92471ac11d24f9021

21361281 as geometric shapes

Circle

Radius = n

Diameter	42722562
Circumference	134216886.92173
Area	1.4335223182402E+15

Sphere

Radius = n

Volume	4.08291640796E+22
Surface area	5.7340892729608E+15
Circumference	134216886.92173

Square

Length = n

Perimeter	85445124
Area	456304325960961
Diagonal	30209413.299863

Cube

Length = n

Surface area	2737825955765766
Volume	9.7472449283677E+21
Space diagonal	36998824.006756

Equilateral Triangle

Length = n

Perimeter	64083843
Area	1.9758556906946E+14
Altitude	18499412.003378

Triangular Pyramid

Length = n

Surface area	1.9758556906946E+14
Volume	1.1487238311225E+21
Height	10069804.433288