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

21000917 (number)

21000917 is an odd 8-digits composite number following 21000916 and preceding 21000918. In scientific notation, it is written as 2.1000917 × 10^7. The sum of its digits is 20. It has a total of 2 prime factors and 4 positive divisors. There are 18000780 positive integers (up to 21000917) that are relatively prime to 21000917.

Interesting facts

21000917 has 4 divisors, whose sum is 24001056
The reverse of 21000917 is 71900012
Previous prime number is 7

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 20
Digital Root 2

Name

Name	twenty-one million nine hundred seventeen

Notation

Scientific notation	2.1000917 × 10^7
Engineering notation	2.1000917 × 10^6

Prime Factorization of 21000917

Prime Factorization 7 × 3000131

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	21000917	Product of the distinct prime numbers

The prime factorization of 21000917 is 7 × 3000131. Since it has a total of 2 prime factors.

Most popular turbo-numbers

2, 6, 49, 50, 937, 69, 7436, 5562, 66547, 56182, 487098, 348136, 3746632, 7003719, 5079752, 17821692, 27786090, 784469347, 8617640438, 3643326449

Basic calculations (n = 21000917)

Multiplication

n×y

n×2	42001834
n×3	63002751
n×4	84003668
n×5	105004585

Division

n÷y

n÷2	10500458.5
n÷3	7000305.6666667
n÷3	5250229.25
n÷5	4200183.4

Exponentiation

n^y

n²	441038514840889
n³	9.2622132439768E+21
n⁴	1.9451497157306E+29
n⁵	4.0849927732631E+36

Nth Root

^y√n

²√n	4582.6757467663
³√n	275.89643334707
⁴√n	67.695463265763
⁵√n	29.137189043879

Divisors of 21000917

1, 7, 3000131, 21000917

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	-21000916	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 21000917 can be divided by 4 positive divisors. The sum of these divisors (counting 21000917) is 1, the average is 0.25.

Base conversion 21000917

Base	System	Value
2	Binary	1010000000111001011010101
3	Ternary	1110111221211202
4	Quaternary	1100013023111
5	Quinary	20334012132
6	Senary	2030042245
8	Octal	120071325
10	Decimal	21000917
12	Duodecimal	7049385
16	Hexadecimal	14072d5
20	Vigesimal	6b525h
36	Base36	ci4et

Cryptographic Hash Functions

md5	c9785f64f31018c1900da43203b4a53c
sha1	271292c6a4cdf3808ffa0d14091af68f5b1faded
sha256	f9e4990e317f187ff94f809ebb6a462ec1e0c96ec96b1a8d82bac8215a05891a
sha512	919be1ea234311e5c171087f7de83b0d4bb422220da504e9ba682653a0f64271b397bdb45617e00503b39d02b5f32097a194913a794ba1ccdf8c85d93074fd05
ripemd-160	d1849aaa3c1c9d3382ddf9b794bd0e71e14a999f

21000917 as geometric shapes

Circle

Radius = n

Diameter	42001834
Circumference	131952653.1317
Area	1.3855633581743E+15

Sphere

Radius = n

Volume	3.8797468111013E+22
Surface area	5.5422534326972E+15
Circumference	131952653.1317

Square

Length = n

Perimeter	84003668
Area	441038514840889
Diagonal	29699781.643672

Cube

Length = n

Surface area	2646231089045334
Volume	9.2622132439768E+21
Space diagonal	36374655.249537

Equilateral Triangle

Length = n

Perimeter	63002751
Area	1.9097527894978E+14
Altitude	18187327.624768

Triangular Pyramid

Length = n

Surface area	1.9097527894978E+14
Volume	1.0915622989353E+21
Height	9899927.2145572