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

21909731 (number)

21909731 is an odd 8-digits composite number following 21909730 and preceding 21909732. In scientific notation, it is written as 2.1909731 × 10^7. The sum of its digits is 32. It has a total of 2 prime factors and 4 positive divisors. There are 20957112 positive integers (up to 21909731) that are relatively prime to 21909731.

Interesting facts

21909731 has 4 divisors, whose sum is 22862352
The reverse of 21909731 is 13790912
Previous prime number is 23

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 32
Digital Root 5

Name

Name	twenty-one million nine hundred nine thousand seven hundred thirty-one

Notation

Scientific notation	2.1909731 × 10^7
Engineering notation	2.1909731 × 10^6

Prime Factorization of 21909731

Prime Factorization 23 × 952597

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	21909731	Product of the distinct prime numbers

The prime factorization of 21909731 is 23 × 952597. Since it has a total of 2 prime factors.

Most popular turbo-numbers

9, 6, 10, 34, 651, 897, 310, 6800, 64321, 5283, 178614, 415518, 9254864, 5436871, 79025376, 34976748, 739195598, 890147489, 6515288258, 3836012140

Basic calculations (n = 21909731)

Multiplication

n×y

n×2	43819462
n×3	65729193
n×4	87638924
n×5	109548655

Division

n÷y

n÷2	10954865.5
n÷3	7303243.6666667
n÷3	5477432.75
n÷5	4381946.2

Exponentiation

n^y

n²	480036312492361
n³	1.051746647694E+22
n⁴	2.3043486131126E+29
n⁵	5.0487658243521E+36

Nth Root

^y√n

²√n	4680.7831609678
³√n	279.82016939207
⁴√n	68.416249246563
⁵√n	29.385115975033

Divisors of 21909731

1, 23, 952597, 21909731

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	-21909730	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 21909731 can be divided by 4 positive divisors. The sum of these divisors (counting 21909731) is 1, the average is 0.25.

Base conversion 21909731

Base	System	Value
2	Binary	1010011100101000011100011
3	Ternary	1112020010111112
4	Quaternary	1103211003203
5	Quinary	21102102411
6	Senary	2101333535
8	Octal	123450343
10	Decimal	21909731
12	Duodecimal	74072ab
16	Hexadecimal	14e50e3
20	Vigesimal	6gie6b
36	Base36	d1lnn

Cryptographic Hash Functions

md5	57413c564ab2a3c616995670768530e4
sha1	c9a3db1b5e8fd753a542a089c0802e7703f449f2
sha256	d4f7508591409d00838787fb4b1cccd9370d88f378c506bb4541a09a36860f0a
sha512	bab99f933292ac8f6ff2dacd5293eef2ff97c806e3589796e520ce642cb84d0ddee8800fd0a0884766131750effece85d90e024538892e91c158f3a67ec9aa20
ripemd-160	d5c76264e3748f58122d8fdaa9245e7f98a983d7

21909731 as geometric shapes

Circle

Radius = n

Diameter	43819462
Circumference	137662899.90346
Area	1.5080785527823E+15

Sphere

Radius = n

Volume	4.4055460557774E+22
Surface area	6.0323142111293E+15
Circumference	137662899.90346

Square

Length = n

Perimeter	87638924
Area	480036312492361
Diagonal	30985038.728146

Cube

Length = n

Surface area	2880217874954166
Volume	1.051746647694E+22
Space diagonal	37948767.272167

Equilateral Triangle

Length = n

Perimeter	65729193
Area	2.0786182067869E+14
Altitude	18974383.636083

Triangular Pyramid

Length = n

Surface area	2.0786182067869E+14
Volume	1.2394953111244E+21
Height	10328346.242715