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

21000945 (number)

21000945 is an odd 8-digits composite number following 21000944 and preceding 21000946. In scientific notation, it is written as 2.1000945 × 10^7. The sum of its digits is 21. It has a total of 3 prime factors and 8 positive divisors. There are 9600384 positive integers (up to 21000945) that are relatively prime to 21000945.

Interesting facts

21000945 has 8 divisors, whose sum is 26401320
The reverse of 21000945 is 54900012
Previous prime number is 5

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 21
Digital Root 3

Name

Name	twenty-one million nine hundred forty-five

Notation

Scientific notation	2.1000945 × 10^7
Engineering notation	2.1000945 × 10^6

Prime Factorization of 21000945

Prime Factorization 21 × 5 × 200009

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	21000945	Product of the distinct prime numbers

The prime factorization of 21000945 is 21 × 5 × 200009. Since it has a total of 3 prime factors.

Most popular turbo-numbers

7, 7, 42, 75, 101, 850, 8291, 8635, 88858, 26744, 111601, 889962, 7572445, 6388767, 5482106, 95248765, 69165759, 117330999, 8124012811, 374805862

Basic calculations (n = 21000945)

Multiplication

n×y

n×2	42001890
n×3	63002835
n×4	84003780
n×5	105004725

Division

n÷y

n÷2	10500472.5
n÷3	7000315
n÷3	5250236.25
n÷5	4200189

Exponentiation

n^y

n²	441039690893025
n³	9.2622502912614E+21
n⁴	1.9451600894302E+29
n⁵	4.0850200054318E+36

Nth Root

^y√n

²√n	4582.678801749
³√n	275.8965559623
⁴√n	67.695485829921
⁵√n	29.137196813453

Divisors of 21000945

1, 5, 21, 105, 200009, 1000045, 4200189, 21000945

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	-21000944	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 21000945 can be divided by 8 positive divisors. The sum of these divisors (counting 21000945) is 1, the average is 0.125.

Base conversion 21000945

Base	System	Value
2	Binary	1010000000111001011110001
3	Ternary	1110111221212210
4	Quaternary	1100013023301
5	Quinary	20334012240
6	Senary	2030042333
8	Octal	120071361
10	Decimal	21000945
12	Duodecimal	70493a9
16	Hexadecimal	14072f1
20	Vigesimal	6b5275
36	Base36	ci4fl

Cryptographic Hash Functions

md5	e50fb1aa90ac4eeec3cdb3aed8b047e7
sha1	53b310aa7b61ebf341e018ee62521f924142723f
sha256	0f312e6b2b0aebe57547a645085da0326bb8e06930ead110b617a998f4f618a3
sha512	4f4a41a3364f2214c5bcea64fe788a172cb7362d8f669a8f910ef25d86d99a94d07e05ea6b484264062de251121f379d8d591cb1100d7684401a55843ccc9692
ripemd-160	bbdf51ee92c18ed48bfbc284cc80a7745171060e

21000945 as geometric shapes

Circle

Radius = n

Diameter	42001890
Circumference	131952829.06089
Area	1.385567052851E+15

Sphere

Radius = n

Volume	3.8797623294316E+22
Surface area	5.5422682114042E+15
Circumference	131952829.06089

Square

Length = n

Perimeter	84003780
Area	441039690893025
Diagonal	29699821.241651

Cube

Length = n

Surface area	2646238145358150
Volume	9.2622502912614E+21
Space diagonal	36374703.74696

Equilateral Triangle

Length = n

Perimeter	63002835
Area	1.909757881953E+14
Altitude	18187351.87348

Triangular Pyramid

Length = n

Surface area	1.909757881953E+14
Volume	1.0915666649997E+21
Height	9899940.4138838