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

21461809 (number)

21461809 is an odd 8-digits composite number following 21461808 and preceding 21461810. In scientific notation, it is written as 2.1461809 × 10^7. The sum of its digits is 31. It has a total of 2 prime factors and 4 positive divisors. There are 21159460 positive integers (up to 21461809) that are relatively prime to 21461809.

Interesting facts

21461809 has 4 divisors, whose sum is 21764160
The reverse of 21461809 is 90816412
Previous prime number is 71

Basic properties

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

Name

Name	twenty-one million four hundred sixty-one thousand eight hundred nine

Notation

Scientific notation	2.1461809 × 10^7
Engineering notation	2.1461809 × 10^6

Prime Factorization of 21461809

Prime Factorization 71 × 302279

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	21461809	Product of the distinct prime numbers

The prime factorization of 21461809 is 71 × 302279. Since it has a total of 2 prime factors.

Most popular turbo-numbers

3, 7, 16, 40, 568, 792, 400, 8898, 7996, 66943, 102883, 82189, 5857906, 5684055, 86052500, 40948962, 60864188, 580670763, 6052252580, 7836721285

Basic calculations (n = 21461809)

Multiplication

n×y

n×2	42923618
n×3	64385427
n×4	85847236
n×5	107309045

Division

n÷y

n÷2	10730904.5
n÷3	7153936.3333333
n÷3	5365452.25
n÷5	4292361.8

Exponentiation

n^y

n²	460609245552481
n³	9.8855076516814E+21
n⁴	2.1216087708843E+29
n⁵	4.5533562213443E+36

Nth Root

^y√n

²√n	4632.6891758459
³√n	277.9001461508
⁴√n	68.06386101189
⁵√n	29.263971495338

Divisors of 21461809

1, 71, 302279, 21461809

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	-21461808	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 21461809 can be divided by 4 positive divisors. The sum of these divisors (counting 21461809) is 1, the average is 0.25.

Base conversion 21461809

Base	System	Value
2	Binary	1010001110111101100110001
3	Ternary	1111101101001211
4	Quaternary	1101313230301
5	Quinary	20443234214
6	Senary	2044000121
8	Octal	121675461
10	Decimal	21461809
12	Duodecimal	7230041
16	Hexadecimal	1477b31
20	Vigesimal	6e2ea9
36	Base36	cs01d

Cryptographic Hash Functions

md5	073e868ba661bd72d96e12a92b2122f0
sha1	dbbffbfee538cccd36a770660f47aaca94c34d01
sha256	8077f626666b6d0f1fa8efa434824d6a4c71e628048c677b45046f50ae7a42d4
sha512	856205e423098c3f5ef3a6b7f6e545bf07796b379bf8eb882953cd018bce626260fddf1a671f440a4ff823889347947e2d970ada803644e7aab767bab1f35574
ripemd-160	bac6e2cafd7a486be7c8142ae176cc3d723a3f18

21461809 as geometric shapes

Circle

Radius = n

Diameter	42923618
Circumference	134848522.97429
Area	1.4470466220032E+15

Sphere

Radius = n

Volume	4.1408317620704E+22
Surface area	5.7881864880128E+15
Circumference	134848522.97429

Square

Length = n

Perimeter	85847236
Area	460609245552481
Diagonal	30351581.360861

Cube

Length = n

Surface area	2763655473314886
Volume	9.8855076516814E+21
Space diagonal	37172943.610339

Equilateral Triangle

Length = n

Perimeter	64385427
Area	1.9944965393322E+14
Altitude	18586471.805169

Triangular Pyramid

Length = n

Surface area	1.9944965393322E+14
Volume	1.1650182493292E+21
Height	10117193.786954