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

21001909 (number)

21001909 is an odd 8-digits prime number following 21001908 and preceding 21001910. In scientific notation, it is written as 2.1001909 × 10^7. The sum of its digits is 22. It has a total of 1 prime factors and 2 positive divisors. There are 21001908 positive integers (up to 21001909) that are relatively prime to 21001909.

Interesting facts

21001909 has 2 divisors, whose sum is 21001910
The reverse of 21001909 is 90910012
Previous prime number is 1

Basic properties

Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 22
Digital Root 4

Name

Name	twenty-one million one thousand nine hundred nine

Notation

Scientific notation	2.1001909 × 10^7
Engineering notation	2.1001909 × 10^6

Prime Factorization of 21001909

Prime Factorization 21001909

Composite number

ω	Distinct Factors	1	Total number of distinct prime factors
Ω	Total Factors	1	Total number of prime factors
rad	Radical	21001909	Product of the distinct prime numbers

The prime factorization of 21001909 is 21001909. Since it has a total of 1 prime factors.

Most popular turbo-numbers

10, 4, 32, 93, 437, 201, 8841, 7151, 33959, 7773, 407110, 359466, 9499405, 4684608, 10816666, 5664203, 713140329, 58212409, 6988601577, 908652356

Basic calculations (n = 21001909)

Multiplication

n×y

n×2	42003818
n×3	63005727
n×4	84007636
n×5	105009545

Division

n÷y

n÷2	10500954.5
n÷3	7000636.3333333
n÷3	5250477.25
n÷5	4200381.8

Exponentiation

n^y

n²	441080181644281
n³	9.2635258365967E+21
n⁴	1.9455172663935E+29
n⁵	4.0859576586725E+36

Nth Root

^y√n

²√n	4582.7839791987
³√n	275.90077736298
⁴√n	67.69626266788
⁵√n	29.137464303721

Divisors of 21001909

1, 21001909

2 divisors

τ	Total Divisors	2	Total number of the positive divisors of n
σ	Sum of Divisors	21001910	Sum of all the positive divisors of n
s	Aliquot Sum	1	Sum of the proper positive divisors of n
A	Arithmetic Mean	10500955	Returns the sum of divisors (σ(n)) divided by the total number of divisors (τ(n))
G	Geometric Mean	4582.7840883027	Returns the nth root of the product of n divisors
H	Harmonic Mean	1.9999999047706	Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21001909 can be divided by 2 positive divisors. The sum of these divisors (counting 21001909) is 21001910, the average is 10500955.

Base conversion 21001909

Base	System	Value
2	Binary	1010000000111011010110101
3	Ternary	1110112000012111
4	Quaternary	1100013122311
5	Quinary	20334030114
6	Senary	2030051021
8	Octal	120073265
10	Decimal	21001909
12	Duodecimal	7049a71
16	Hexadecimal	14076b5
20	Vigesimal	6b54f9
36	Base36	ci56d

Cryptographic Hash Functions

md5	539af42b4f59800de4d23555238b129b
sha1	92a6957f902a78ea908508bff20919d3b59ff68b
sha256	3090c1ae9f9b66e0966827e686f7d4442a460c57c91a1a26db2b8012c9800061
sha512	33bf0fb61ca0cb363fa11b8126f0a2afaa8836d43dfc0120013d0754fd20715429e8e0ce3ff23a650997115e13f9cc151471e29aa05b37a4ed57b01725c44d60
ripemd-160	27484fd05b7d984f2191cea8472c041c886e86c2

21001909 as geometric shapes

Circle

Radius = n

Diameter	42003818
Circumference	131958886.05152
Area	1.3856942582977E+15

Sphere

Radius = n

Volume	3.8802966286122E+22
Surface area	5.5427770331909E+15
Circumference	131958886.05152

Square

Length = n

Perimeter	84007636
Area	441080181644281
Diagonal	29701184.543526

Cube

Length = n

Surface area	2646481089865686
Volume	9.2635258365967E+21
Space diagonal	36376373.443938

Equilateral Triangle

Length = n

Perimeter	63005727
Area	1.909933212049E+14
Altitude	18188186.721969

Triangular Pyramid

Length = n

Surface area	1.909933212049E+14
Volume	1.091716989459E+21
Height	9900394.8478419