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

21000281 (number)

21000281 is an odd 8-digits composite number following 21000280 and preceding 21000282. In scientific notation, it is written as 2.1000281 × 10^7. The sum of its digits is 14. It has a total of 2 prime factors and 4 positive divisors. There are 20978100 positive integers (up to 21000281) that are relatively prime to 21000281.

Interesting facts

21000281 has 4 divisors, whose sum is 21022464
The reverse of 21000281 is 18200012
Previous prime number is 991

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 14
Digital Root 5

Name

Name	twenty-one million two hundred eighty-one

Notation

Scientific notation	2.1000281 × 10^7
Engineering notation	2.1000281 × 10^6

Prime Factorization of 21000281

Prime Factorization 991 × 21191

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	21000281	Product of the distinct prime numbers

The prime factorization of 21000281 is 991 × 21191. Since it has a total of 2 prime factors.

Most popular turbo-numbers

10, 6, 2, 83, 634, 428, 4670, 6737, 39177, 98819, 178545, 557707, 77436, 9096581, 27593953, 82222246, 862362092, 955830869, 6968308435, 9234718208

Basic calculations (n = 21000281)

Multiplication

n×y

n×2	42000562
n×3	63000843
n×4	84001124
n×5	105001405

Division

n÷y

n÷2	10500140.5
n÷3	7000093.6666667
n÷3	5250070.25
n÷5	4200056.2

Exponentiation

n^y

n²	441011802078961
n³	9.2613717679746E+21
n⁴	1.9449140957293E+29
n⁵	4.0843742531177E+36

Nth Root

^y√n

²√n	4582.6063544669
³√n	275.89364820039
⁴√n	67.694950730958
⁵√n	29.137012561331

Divisors of 21000281

1, 991, 21191, 21000281

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	-21000280	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 21000281 can be divided by 4 positive divisors. The sum of these divisors (counting 21000281) is 1, the average is 0.25.

Base conversion 21000281

Base	System	Value
2	Binary	1010000000111000001011001
3	Ternary	1110111220222012
4	Quaternary	1100013001121
5	Quinary	20334002111
6	Senary	2030035305
8	Octal	120070131
10	Decimal	21000281
12	Duodecimal	7048b35
16	Hexadecimal	1407059
20	Vigesimal	6b50e1
36	Base36	ci3x5

Cryptographic Hash Functions

md5	6826d95201bb2353fc880b38bdcda5cd
sha1	646de14f8f115c097ac53d5d3926c663f2507cab
sha256	fbe37bd868ca57c9531eaeb1ceae18dad1506a00605a995e79f686710f4d8041
sha512	d3fb727b4b589fd859804f4888b95687c98c10a20caa669a8c19d4ee6c35058625fbe5164b984bfa62f84323037c8e64f3201ef81f1a7a1b61ac540642a8be78
ripemd-160	ced39286c05166a83f04c86e7aa3226549fbe318

21000281 as geometric shapes

Circle

Radius = n

Diameter	42000562
Circumference	131948657.02584
Area	1.3854794375577E+15

Sphere

Radius = n

Volume	3.8793943344577E+22
Surface area	5.5419177502306E+15
Circumference	131948657.02584

Square

Length = n

Perimeter	84001124
Area	441011802078961
Diagonal	29698882.203846

Cube

Length = n

Surface area	2646070812473766
Volume	9.2613717679746E+21
Space diagonal	36373553.665223

Equilateral Triangle

Length = n

Perimeter	63000843
Area	1.9096371198457E+14
Altitude	18186776.832612

Triangular Pyramid

Length = n

Surface area	1.9096371198457E+14
Volume	1.0914631300374E+21
Height	9899627.401282