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

21493721 (number)

21493721 is an odd 8-digits composite number following 21493720 and preceding 21493722. In scientific notation, it is written as 2.1493721 × 10^7. The sum of its digits is 29. It has a total of 2 prime factors and 4 positive divisors. There are 21481344 positive integers (up to 21493721) that are relatively prime to 21493721.

Interesting facts

21493721 has 4 divisors, whose sum is 21506100
The reverse of 21493721 is 12739412
Previous prime number is 2089

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 29
Digital Root 2

Name

Name	twenty-one million four hundred ninety-three thousand seven hundred twenty-one

Notation

Scientific notation	2.1493721 × 10^7
Engineering notation	2.1493721 × 10^6

Prime Factorization of 21493721

Prime Factorization 2089 × 10289

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	21493721	Product of the distinct prime numbers

The prime factorization of 21493721 is 2089 × 10289. Since it has a total of 2 prime factors.

Most popular turbo-numbers

8, 4, 74, 55, 638, 643, 6579, 9003, 60566, 90678, 744031, 904541, 7924466, 3788729, 60542146, 61439018, 201431373, 516645033, 9427879805, 2058616763

Basic calculations (n = 21493721)

Multiplication

n×y

n×2	42987442
n×3	64481163
n×4	85974884
n×5	107468605

Division

n÷y

n÷2	10746860.5
n÷3	7164573.6666667
n÷3	5373430.25
n÷5	4298744.2

Exponentiation

n^y

n²	461980042425841
n³	9.9296701394692E+21
n⁴	2.1342555959978E+29
n⁵	4.5873094323066E+36

Nth Root

^y√n

²√n	4636.1321163228
³√n	278.03781639692
⁴√n	68.08914830076
⁵√n	29.272668962696

Divisors of 21493721

1, 2089, 10289, 21493721

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	-21493720	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 21493721 can be divided by 4 positive divisors. The sum of these divisors (counting 21493721) is 1, the average is 0.25.

Base conversion 21493721

Base	System	Value
2	Binary	1010001111111011111011001
3	Ternary	1111102222211202
4	Quaternary	1101333133121
5	Quinary	21000244341
6	Senary	2044403545
8	Octal	121773731
10	Decimal	21493721
12	Duodecimal	72465b5
16	Hexadecimal	147f7d9
20	Vigesimal	6e6e61
36	Base36	csont

Cryptographic Hash Functions

md5	5506dde4c65a28c71e2df5c09becbb54
sha1	189d8ba5d51354a2ab08d3faf2e452eae8c40e83
sha256	5a9e0f6c0adbbb779bc43f0360a9db5be371271d094b1b92e39a3524112b31ef
sha512	bab7341637c2c5af7b304f601bc51295e3dc45f0d46690e177a22df35f58d660a8f4c54261908ec69ea66bda28f5dfc40b42a04782d4058c33594cc1b6e60f21
ripemd-160	dc09a6099cb0485e8197be90e571068e26e6e726

21493721 as geometric shapes

Circle

Radius = n

Diameter	42987442
Circumference	135049031.98382
Area	1.4513531073901E+15

Sphere

Radius = n

Volume	4.1593305016968E+22
Surface area	5.8054124295605E+15
Circumference	135049031.98382

Square

Length = n

Perimeter	85974884
Area	461980042425841
Diagonal	30396711.744063

Cube

Length = n

Surface area	2771880254555046
Volume	9.9296701394692E+21
Space diagonal	37228216.81571

Equilateral Triangle

Length = n

Perimeter	64481163
Area	2.000432263911E+14
Altitude	18614108.407855

Triangular Pyramid

Length = n

Surface area	2.000432263911E+14
Volume	1.1702228484274E+21
Height	10132237.248021