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

21000405 (number)

21000405 is an odd 8-digits composite number following 21000404 and preceding 21000406. In scientific notation, it is written as 2.1000405 × 10^7. The sum of its digits is 12. It has a total of 3 prime factors and 8 positive divisors. There are 10926720 positive integers (up to 21000405) that are relatively prime to 21000405.

Interesting facts

21000405 has 8 divisors, whose sum is 22947456
The reverse of 21000405 is 50400012
Previous prime number is 41

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 12
Digital Root 3

Name

Name	twenty-one million four hundred five

Notation

Scientific notation	2.1000405 × 10^7
Engineering notation	2.1000405 × 10^6

Prime Factorization of 21000405

Prime Factorization 15 × 41 × 34147

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	21000405	Product of the distinct prime numbers

The prime factorization of 21000405 is 15 × 41 × 34147. Since it has a total of 3 prime factors.

Most popular turbo-numbers

3, 2, 1, 18, 439, 429, 9286, 1040, 81438, 94571, 565334, 508294, 4960501, 2982119, 62538897, 29640483, 43068316, 309551527, 5181137246, 6647108879

Basic calculations (n = 21000405)

Multiplication

n×y

n×2	42000810
n×3	63001215
n×4	84001620
n×5	105002025

Division

n÷y

n÷2	10500202.5
n÷3	7000135
n÷3	5250101.25
n÷5	4200081

Exponentiation

n^y

n²	441017010164025
n³	9.2615358253336E+21
n⁴	1.9449600325402E+29
n⁵	4.0844948392156E+36

Nth Root

^y√n

²√n	4582.6198838656
³√n	275.89419122082
⁴√n	67.695050660041
⁵√n	29.137046970214

Divisors of 21000405

1, 15, 41, 615, 34147, 512205, 1400027, 21000405

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	-21000404	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 21000405 can be divided by 8 positive divisors. The sum of these divisors (counting 21000405) is 1, the average is 0.125.

Base conversion 21000405

Base	System	Value
2	Binary	1010000000111000011010101
3	Ternary	1110111221010210
4	Quaternary	1100013003111
5	Quinary	20334003110
6	Senary	2030040033
8	Octal	120070325
10	Decimal	21000405
12	Duodecimal	7049019
16	Hexadecimal	14070d5
20	Vigesimal	6b5105
36	Base36	ci40l

Cryptographic Hash Functions

md5	177bf1c5b2f579130789767e188efa49
sha1	084ea78446a24735fe31338ea11008c2efe107f7
sha256	d571483d4844a0c1b49dec82fa30be6b4fcc4731c306007f1d5b29cd5fa013ad
sha512	e6b46f5f38f862254240ac0d741d17b17e1d126f244a4c915c1ca5ab95773ff53ca9b36b428bb8b54ec8289e78232002bc6b8e1702986ad3617056ae156e13e6
ripemd-160	8c11924c715703c0b8d722d43d94dcd080a4b469

21000405 as geometric shapes

Circle

Radius = n

Diameter	42000810
Circumference	131949436.14082
Area	1.3854957992394E+15

Sphere

Radius = n

Volume	3.8794630546436E+22
Surface area	5.5419831969577E+15
Circumference	131949436.14082

Square

Length = n

Perimeter	84001620
Area	441017010164025
Diagonal	29699057.566328

Cube

Length = n

Surface area	2646102060984150
Volume	9.2615358253336E+21
Space diagonal	36373768.439523

Equilateral Triangle

Length = n

Perimeter	63001215
Area	1.9096596715155E+14
Altitude	18186884.219762

Triangular Pyramid

Length = n

Surface area	1.9096596715155E+14
Volume	1.0914824643826E+21
Height	9899685.8554426