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

21000845 (number)

21000845 is an odd 8-digits composite number following 21000844 and preceding 21000846. In scientific notation, it is written as 2.1000845 × 10^7. The sum of its digits is 20. It has a total of 3 prime factors and 8 positive divisors. There are 16776720 positive integers (up to 21000845) that are relatively prime to 21000845.

Interesting facts

21000845 has 8 divisors, whose sum is 25236960
The reverse of 21000845 is 54800012
Previous prime number is 811

Basic properties

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

Name

Name	twenty-one million eight hundred forty-five

Notation

Scientific notation	2.1000845 × 10^7
Engineering notation	2.1000845 × 10^6

Prime Factorization of 21000845

Prime Factorization 5 × 811 × 5179

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	21000845	Product of the distinct prime numbers

The prime factorization of 21000845 is 5 × 811 × 5179. Since it has a total of 3 prime factors.

Most popular turbo-numbers

3, 9, 53, 70, 62, 342, 1771, 342, 1767, 3809, 834849, 714933, 1186824, 4631855, 80899870, 31475655, 613588784, 843344031, 3912602123, 6629161966

Basic calculations (n = 21000845)

Multiplication

n×y

n×2	42001690
n×3	63002535
n×4	84003380
n×5	105004225

Division

n÷y

n÷2	10500422.5
n÷3	7000281.6666667
n÷3	5250211.25
n÷5	4200169

Exponentiation

n^y

n²	441035490714025
n³	9.2621179799842E+21
n⁴	1.9451230406936E+29
n⁵	4.0849227483535E+36

Nth Root

^y√n

²√n	4582.667891087
³√n	275.89611805027
⁴√n	67.695405243539
⁵√n	29.137169064938

Divisors of 21000845

1, 5, 811, 4055, 5179, 25895, 4200169, 21000845

8 divisors

τ	Total Divisors	8	Total number of the positive divisors of n
σ	Sum of Divisors	1	Sum of all the positive divisors of n
s	Aliquot Sum	-21000844	Sum of the proper positive divisors of n
A	Arithmetic Mean	0.125	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	8	Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21000845 can be divided by 8 positive divisors. The sum of these divisors (counting 21000845) is 1, the average is 0.125.

Base conversion 21000845

Base	System	Value
2	Binary	1010000000111001010001101
3	Ternary	1110111221202002
4	Quaternary	1100013022031
5	Quinary	20334011340
6	Senary	2030042045
8	Octal	120071215
10	Decimal	21000845
12	Duodecimal	7049325
16	Hexadecimal	140728d
20	Vigesimal	6b5225
36	Base36	ci4ct

Cryptographic Hash Functions

md5	9f60302a0c99dc0b81c25e3b623acd5e
sha1	9d22a232857a11243f7eedaecd578c3840aa4e80
sha256	e7e44bc5f1bc5a2320d435b8078676ce0177cad0ed71808a00ac4ec295252b4d
sha512	a35cb39a4e477c15e65e070b5f54fd473ef7afb201028ac7bdb49cb8f146cefdbf2a46657e8d7f5ebeb2d73e84767b2259a7a86607718d9b6658c26e5532b973
ripemd-160	df422c47c53f6343a06cfa6972f4e93f9e910b17

21000845 as geometric shapes

Circle

Radius = n

Diameter	42001690
Circumference	131952200.74236
Area	1.3855538575996E+15

Sphere

Radius = n

Volume	3.8797069070134E+22
Surface area	5.5422154303982E+15
Circumference	131952200.74236

Square

Length = n

Perimeter	84003380
Area	441035490714025
Diagonal	29699679.820295

Cube

Length = n

Surface area	2646212944284150
Volume	9.2621179799842E+21
Space diagonal	36374530.541879

Equilateral Triangle

Length = n

Perimeter	63002535
Area	1.9097396946444E+14
Altitude	18187265.270939

Triangular Pyramid

Length = n

Surface area	1.9097396946444E+14
Volume	1.0915510719661E+21
Height	9899893.2734317