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

21006945 (number)

21006945 is an odd 8-digits composite number following 21006944 and preceding 21006946. In scientific notation, it is written as 2.1006945 × 10^7. The sum of its digits is 27. It has a total of 3 prime factors and 8 positive divisors. There are 11203488 positive integers (up to 21006945) that are relatively prime to 21006945.

Interesting facts

21006945 has 8 divisors, whose sum is 23860200
The reverse of 21006945 is 54960012
Previous prime number is 9

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 27
Digital Root 9

Name

Name	twenty-one million six thousand nine hundred forty-five

Notation

Scientific notation	2.1006945 × 10^7
Engineering notation	2.1006945 × 10^6

Prime Factorization of 21006945

Prime Factorization 45 × 9 × 51869

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	21006945	Product of the distinct prime numbers

The prime factorization of 21006945 is 45 × 9 × 51869. Since it has a total of 3 prime factors.

Most popular turbo-numbers

5, 8, 78, 99, 578, 637, 2025, 158, 44711, 94897, 701139, 432493, 7125546, 1201755, 98649637, 61233093, 998702352, 643567603, 9382561263, 7460042870

Basic calculations (n = 21006945)

Multiplication

n×y

n×2	42013890
n×3	63020835
n×4	84027780
n×5	105034725

Division

n÷y

n÷2	10503472.5
n÷3	7002315
n÷3	5251736.25
n÷5	4201389

Exponentiation

n^y

n²	441291738233025
n³	9.2701912740156E+21
n⁴	1.9473839823272E+29
n⁵	4.0908588210629E+36

Nth Root

^y√n

²√n	4583.3333939394
³√n	275.92282814057
⁴√n	67.700320486238
⁵√n	29.138861530973

Divisors of 21006945

1, 9, 45, 405, 51869, 466821, 2334105, 21006945

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	-21006944	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 21006945 can be divided by 8 positive divisors. The sum of these divisors (counting 21006945) is 1, the average is 0.125.

Base conversion 21006945

Base	System	Value
2	Binary	1010000001000101001100001
3	Ternary	1110112021010000
4	Quaternary	1100020221201
5	Quinary	20334210240
6	Senary	2030130213
8	Octal	120105141
10	Decimal	21006945
12	Duodecimal	7050969
16	Hexadecimal	1408a61
20	Vigesimal	6b5h75
36	Base36	ci929

Cryptographic Hash Functions

md5	e57fc9da3956d35e5a3bad377df3dcfd
sha1	e63c959593410cad6478d4af3e8e5fe08bf83861
sha256	9ed1aaf1fb59b3983649931aff4f782b9dc5268e55d50f13ef632c5e422d78d7
sha512	ff6e5e38b4cdd4e6a996d3995c411c5a4978d6bbc4a8f3ab3d588ffa13a8f96a1a3673fde0b27cd654071688e61069495bf702b5d7d1fef65ab4fc0f29543f12
ripemd-160	8c8f64fc340d6c114155dfd27dff0e4a2125af41

21006945 as geometric shapes

Circle

Radius = n

Diameter	42013890
Circumference	131990528.17273
Area	1.3863588829227E+15

Sphere

Radius = n

Volume	3.8830886405093E+22
Surface area	5.545435531691E+15
Circumference	131990528.17273

Square

Length = n

Perimeter	84027780
Area	441291738233025
Diagonal	29708306.523026

Cube

Length = n

Surface area	2647750429398150
Volume	9.2701912740156E+21
Space diagonal	36385096.051805

Equilateral Triangle

Length = n

Perimeter	63020835
Area	1.91084927895E+14
Altitude	18192548.025902

Triangular Pyramid

Length = n

Surface area	1.91084927895E+14
Volume	1.0925025187921E+21
Height	9902768.8410086