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

21000842 (number)

21000842 is an even 8-digits composite number following 21000841 and preceding 21000843. In scientific notation, it is written as 2.1000842 × 10^7. The sum of its digits is 17. It has a total of 2 prime factors and 4 positive divisors. There are 10500420 positive integers (up to 21000842) that are relatively prime to 21000842.

Interesting facts

21000842 has 4 divisors, whose sum is 31501266
The reverse of 21000842 is 24800012
Previous prime number is 2

Basic properties

Is Prime? no
Number parity even
Number length 8
Sum of Digits 17
Digital Root 8

Name

Name	twenty-one million eight hundred forty-two

Notation

Scientific notation	2.1000842 × 10^7
Engineering notation	2.1000842 × 10^6

Prime Factorization of 21000842

Prime Factorization 2 × 10500421

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	21000842	Product of the distinct prime numbers

The prime factorization of 21000842 is 2 × 10500421. Since it has a total of 2 prime factors.

Most popular turbo-numbers

10, 5, 57, 85, 986, 898, 331, 8347, 98781, 4939, 731743, 216885, 3723927, 9030397, 91836441, 49220849, 672605324, 27928410, 3889882634, 2330685570

Basic calculations (n = 21000842)

Multiplication

n×y

n×2	42001684
n×3	63002526
n×4	84003368
n×5	105004210

Division

n÷y

n÷2	10500421
n÷3	7000280.6666667
n÷3	5250210.5
n÷5	4200168.4

Exponentiation

n^y

n²	441035364708964
n³	9.2621140106653E+21
n⁴	1.9451219292397E+29
n⁵	4.0849198306698E+36

Nth Root

^y√n

²√n	4582.6675637668
³√n	275.89610491289
⁴√n	67.695402825944
⁵√n	29.137168232481

Divisors of 21000842

1, 2, 10500421, 21000842

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	-21000841	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 21000842 can be divided by 4 positive divisors. The sum of these divisors (counting 21000842) is 1, the average is 0.25.

Base conversion 21000842

Base	System	Value
2	Binary	1010000000111001010001010
3	Ternary	1110111221201222
4	Quaternary	1100013022022
5	Quinary	20334011332
6	Senary	2030042042
8	Octal	120071212
10	Decimal	21000842
12	Duodecimal	7049322
16	Hexadecimal	140728a
20	Vigesimal	6b5222
36	Base36	ci4cq

Cryptographic Hash Functions

md5	97c57ac6e9535edfb73cb3b03238d9af
sha1	63122f28d43405774fa3f59872fe0c1f728947e6
sha256	959bcb8928b56d77a2ab83ad9f98c4ac97b570deeb7bd2d33689d454765f6653
sha512	7eb24c7ebe55d04e6c3fa5faadaf51034b0a1b81cc88634144bc212bd25a3209e1ea7c7676d3427a349dd628c1263c8d33dcc2293f0a740811a15997907d870c
ripemd-160	4c048bb37da51d07b40a4198ca65e24fdf124adb

21000842 as geometric shapes

Circle

Radius = n

Diameter	42001684
Circumference	131952181.8928
Area	1.385553461743E+15

Sphere

Radius = n

Volume	3.879705244349E+22
Surface area	5.5422138469719E+15
Circumference	131952181.8928

Square

Length = n

Perimeter	84003368
Area	441035364708964
Diagonal	29699675.577655

Cube

Length = n

Surface area	2646212188253784
Volume	9.2621140106653E+21
Space diagonal	36374525.345726

Equilateral Triangle

Length = n

Perimeter	63002526
Area	1.9097391490265E+14
Altitude	18187262.672863

Triangular Pyramid

Length = n

Surface area	1.9097391490265E+14
Volume	1.0915506041774E+21
Height	9899891.8592182