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

21492721 (number)

21492721 is an odd 8-digits composite number following 21492720 and preceding 21492722. In scientific notation, it is written as 2.1492721 × 10^7. The sum of its digits is 28. It has a total of 2 prime factors and 4 positive divisors. There are 21481200 positive integers (up to 21492721) that are relatively prime to 21492721.

Interesting facts

21492721 has 4 divisors, whose sum is 21504244
The reverse of 21492721 is 12729412
Previous prime number is 2341

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 28
Digital Root 1

Name

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

Notation

Scientific notation	2.1492721 × 10^7
Engineering notation	2.1492721 × 10^6

Prime Factorization of 21492721

Prime Factorization 2341 × 9181

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	21492721	Product of the distinct prime numbers

The prime factorization of 21492721 is 2341 × 9181. Since it has a total of 2 prime factors.

Most popular turbo-numbers

1, 4, 98, 64, 37, 405, 3265, 3872, 56384, 69751, 722605, 523314, 8025334, 1639371, 42398622, 16076200, 627387562, 237484857, 4197172806, 6471200493

Basic calculations (n = 21492721)

Multiplication

n×y

n×2	42985442
n×3	64478163
n×4	85970884
n×5	107463605

Division

n÷y

n÷2	10746360.5
n÷3	7164240.3333333
n÷3	5373180.25
n÷5	4298544.2

Exponentiation

n^y

n²	461937055983841
n³	9.9282842638221E+21
n⁴	2.1338584369102E+29
n⁵	4.5862424038007E+36

Nth Root

^y√n

²√n	4636.0242665456
³√n	278.03350440695
⁴√n	68.088356321368
⁵√n	29.272396574181

Divisors of 21492721

1, 2341, 9181, 21492721

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	-21492720	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 21492721 can be divided by 4 positive divisors. The sum of these divisors (counting 21492721) is 1, the average is 0.25.

Base conversion 21492721

Base	System	Value
2	Binary	1010001111111001111110001
3	Ternary	1111102221110201
4	Quaternary	1101333033301
5	Quinary	21000231341
6	Senary	2044355201
8	Octal	121771761
10	Decimal	21492721
12	Duodecimal	7245b01
16	Hexadecimal	147f3f1
20	Vigesimal	6e6bg1
36	Base36	csnw1

Cryptographic Hash Functions

md5	fba8858fb8b38858ffc0bee58f2098f9
sha1	c58eda76a3f68904469ed90c58276d5e12f673e7
sha256	656e3b5781605192681f98809d826d5463313af91fe1428018ec05ff20e5adb5
sha512	f1097e01f49de1491f6106cab3f5db5fc98e423ea801a39b7eefba2c598a436e25b5c53f3bb0491db23ce48caafe60e41f93eab63c71691a766ea893d1faaf7f
ripemd-160	7388b40be5a675a8cb7c365666174346d8521de9

21492721 as geometric shapes

Circle

Radius = n

Diameter	42985442
Circumference	135042748.79851
Area	1.4512180614997E+15

Sphere

Radius = n

Volume	4.1587499874633E+22
Surface area	5.8048722459989E+15
Circumference	135042748.79851

Square

Length = n

Perimeter	85970884
Area	461937055983841
Diagonal	30395297.530501

Cube

Length = n

Surface area	2771622335903046
Volume	9.9282842638221E+21
Space diagonal	37226484.764903

Equilateral Triangle

Length = n

Perimeter	64478163
Area	2.000246127157E+14
Altitude	18613242.382451

Triangular Pyramid

Length = n

Surface area	2.000246127157E+14
Volume	1.170059521416E+21
Height	10131765.8435