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

21491914 (number)

21491914 is an even 8-digits composite number following 21491913 and preceding 21491915. In scientific notation, it is written as 2.1491914 × 10^7. The sum of its digits is 31. It has a total of 2 prime factors and 4 positive divisors. There are 10745956 positive integers (up to 21491914) that are relatively prime to 21491914.

Interesting facts

21491914 has 4 divisors, whose sum is 32237874
The reverse of 21491914 is 41919412
Previous prime number is 2

Basic properties

Is Prime? no
Number parity even
Number length 8
Sum of Digits 31
Digital Root 4

Name

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

Notation

Scientific notation	2.1491914 × 10^7
Engineering notation	2.1491914 × 10^6

Prime Factorization of 21491914

Prime Factorization 2 × 10745957

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	21491914	Product of the distinct prime numbers

The prime factorization of 21491914 is 2 × 10745957. Since it has a total of 2 prime factors.

Most popular turbo-numbers

2, 1, 43, 85, 852, 914, 681, 6216, 61143, 49962, 836174, 774988, 4794116, 6200354, 58920707, 29282712, 436686640, 433456410, 794885271, 8520051072

Basic calculations (n = 21491914)

Multiplication

n×y

n×2	42983828
n×3	64475742
n×4	85967656
n×5	107459570

Division

n÷y

n÷2	10745957
n÷3	7163971.3333333
n÷3	5372978.5
n÷5	4298382.8

Exponentiation

n^y

n²	461902367383396
n³	9.9271659562004E+21
n⁴	2.1335379699439E+29
n⁵	4.5853814565768E+36

Nth Root

^y√n

²√n	4635.9372299461
³√n	278.03002453352
⁴√n	68.087717173849
⁵√n	29.272176749257

Divisors of 21491914

1, 2, 10745957, 21491914

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	-21491913	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 21491914 can be divided by 4 positive divisors. The sum of these divisors (counting 21491914) is 1, the average is 0.25.

Base conversion 21491914

Base	System	Value
2	Binary	1010001111111000011001010
3	Ternary	1111102220100211
4	Quaternary	1101333003022
5	Quinary	21000220124
6	Senary	2044351334
8	Octal	121770312
10	Decimal	21491914
12	Duodecimal	724554a
16	Hexadecimal	147f0ca
20	Vigesimal	6e69fe
36	Base36	csn9m

Cryptographic Hash Functions

md5	ed9abc0732b9df22baa9a6f8fd1719f0
sha1	edf6ce6c71673f06ced2e69ece1852c7f2138231
sha256	d6f5c06eabba209511ae89b6011f52b3b27567b3ddb62b5b56075af2882002b2
sha512	5c6b399a5bed53b48dda75aef173e8667377f1f3b4d621be74e518b2f229c9a3e1bce08815a3d503616216951a8612c8b083f6d1f8e0b593c3d08c6a9a59eeab
ripemd-160	bca7dc66218eebe9565f8467c46da6b316c13a78

21491914 as geometric shapes

Circle

Radius = n

Diameter	42983828
Circumference	135037678.26797
Area	1.4511090840474E+15

Sphere

Radius = n

Volume	4.1582815518621E+22
Surface area	5.8044363361896E+15
Circumference	135037678.26797

Square

Length = n

Perimeter	85967656
Area	461902367383396
Diagonal	30394156.260156

Cube

Length = n

Surface area	2771414204300376
Volume	9.9271659562004E+21
Space diagonal	37225086.999901

Equilateral Triangle

Length = n

Perimeter	64475742
Area	2.000095921111E+14
Altitude	18612543.49995

Triangular Pyramid

Length = n

Surface area	2.000095921111E+14
Volume	1.1699277275989E+21
Height	10131385.420052