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

21813909 (number)

21813909 is an odd 8-digits composite number following 21813908 and preceding 21813910. In scientific notation, it is written as 2.1813909 × 10^7. The sum of its digits is 33. It has a total of 4 prime factors and 16 positive divisors. There are 13373568 positive integers (up to 21813909) that are relatively prime to 21813909.

Interesting facts

21813909 has 16 divisors, whose sum is 31440192
The reverse of 21813909 is 90931812
Previous prime number is 313

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 33
Digital Root 6

Name

Name	twenty-one million eight hundred thirteen thousand nine hundred nine

Notation

Scientific notation	2.1813909 × 10^7
Engineering notation	2.1813909 × 10^6

Prime Factorization of 21813909

Prime Factorization 3 × 13 × 313 × 1787

Composite number

ω	Distinct Factors	4	Total number of distinct prime factors
Ω	Total Factors	4	Total number of prime factors
rad	Radical	21813909	Product of the distinct prime numbers

The prime factorization of 21813909 is 3 × 13 × 313 × 1787. Since it has a total of 4 prime factors.

Most popular turbo-numbers

3, 9, 55, 48, 579, 495, 2574, 5071, 67820, 31899, 631354, 802557, 6049175, 8975763, 43472018, 21905464, 833155885, 685706343, 9244603325, 1097375859

Basic calculations (n = 21813909)

Multiplication

n×y

n×2	43627818
n×3	65441727
n×4	87255636
n×5	109069545

Division

n÷y

n÷2	10906954.5
n÷3	7271303
n÷3	5453477.25
n÷5	4362781.8

Exponentiation

n^y

n²	475846625860281
n³	1.0380074994473E+22
n⁴	2.2643001134261E+29
n⁵	4.9393236622968E+36

Nth Root

^y√n

²√n	4670.5362647131
³√n	279.4116429673
⁴√n	68.341321795185
⁵√n	29.359367786756

Divisors of 21813909

1, 3, 13, 39, 313, 939, 1787, 4069, 5361, 12207, 23231, 69693, 559331, 1677993, 7271303, 21813909

16 divisors

τ	Total Divisors	16	Total number of the positive divisors of n
σ	Sum of Divisors	1	Sum of all the positive divisors of n
s	Aliquot Sum	-21813908	Sum of the proper positive divisors of n
A	Arithmetic Mean	0.0625	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	16	Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21813909 can be divided by 16 positive divisors. The sum of these divisors (counting 21813909) is 1, the average is 0.0625.

Base conversion 21813909

Base	System	Value
2	Binary	1010011001101101010010101
3	Ternary	1112001021001120
4	Quaternary	1103031222111
5	Quinary	21041021114
6	Senary	2055314153
8	Octal	123155225
10	Decimal	21813909
12	Duodecimal	737b959
16	Hexadecimal	14cda95
20	Vigesimal	6g6ef9
36	Base36	czjpx

Cryptographic Hash Functions

md5	7b13ae880cf83838f97080ada4245eb2
sha1	15ff94ae30182915e4159b2a80dca0e03bd7f17e
sha256	e4ca0e7ad522fa19fb73650a0cce0c240c6332e7c82ca5e37fb9e8a88b3c137b
sha512	06080050a1eac0fbdc7b9f6682487853d6460f0b1c0d8713ceab1febc22818f5072b9fb44a61cf6f11ff0dd87ddde1307744a0161657a42d0cdce93313baf300
ripemd-160	9a3f4bdba8631d61ed95bc671f924db5fcf18cc7

21813909 as geometric shapes

Circle

Radius = n

Diameter	43627818
Circumference	137060832.52095
Area	1.4949162640381E+15

Sphere

Radius = n

Volume	4.3479956461798E+22
Surface area	5.9796650561526E+15
Circumference	137060832.52095

Square

Length = n

Perimeter	87255636
Area	475846625860281
Diagonal	30849525.956173

Cube

Length = n

Surface area	2855079755161686
Volume	1.0380074994473E+22
Space diagonal	37782798.699684

Equilateral Triangle

Length = n

Perimeter	65441727
Area	2.0604763315006E+14
Altitude	18891399.349842

Triangular Pyramid

Length = n

Surface area	2.0604763315006E+14
Volume	1.2233035696362E+21
Height	10283175.318724