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

21031871 (number)

21031871 is an odd 8-digits composite number following 21031870 and preceding 21031872. In scientific notation, it is written as 2.1031871 × 10^7. The sum of its digits is 23. It has a total of 2 prime factors and 4 positive divisors. There are 18027312 positive integers (up to 21031871) that are relatively prime to 21031871.

Interesting facts

21031871 has 4 divisors, whose sum is 24036432
The reverse of 21031871 is 17813012
Previous prime number is 7

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 23
Digital Root 5

Name

Name	twenty-one million thirty-one thousand eight hundred seventy-one

Notation

Scientific notation	2.1031871 × 10^7
Engineering notation	2.1031871 × 10^6

Prime Factorization of 21031871

Prime Factorization 7 × 3004553

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	21031871	Product of the distinct prime numbers

The prime factorization of 21031871 is 7 × 3004553. Since it has a total of 2 prime factors.

Most popular turbo-numbers

7, 5, 68, 61, 935, 537, 5777, 4356, 73043, 12180, 918290, 590006, 225322, 3056694, 3215288, 34949892, 106739569, 751089285, 5411776257, 4402187345

Basic calculations (n = 21031871)

Multiplication

n×y

n×2	42063742
n×3	63095613
n×4	84127484
n×5	105159355

Division

n÷y

n÷2	10515935.5
n÷3	7010623.6666667
n÷3	5257967.75
n÷5	4206374.2

Exponentiation

n^y

n²	442339597760641
n³	9.3032293582937E+21
n⁴	1.9566431974705E+29
n⁵	4.1151867322226E+36

Nth Root

^y√n

²√n	4586.0517877582
³√n	276.03191799882
⁴√n	67.720394178993
⁵√n	29.145773252607

Divisors of 21031871

1, 7, 3004553, 21031871

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	-21031870	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 21031871 can be divided by 4 positive divisors. The sum of these divisors (counting 21031871) is 1, the average is 0.25.

Base conversion 21031871

Base	System	Value
2	Binary	1010000001110101110111111
3	Ternary	1110120112022012
4	Quaternary	1100032232333
5	Quinary	20341004441
6	Senary	2030441435
8	Octal	120165677
10	Decimal	21031871
12	Duodecimal	706327b
16	Hexadecimal	140ebbf
20	Vigesimal	6b8jdb
36	Base36	cisan

Cryptographic Hash Functions

md5	90c71b710f221a1834ff0472c611f589
sha1	90f71e7dc6a515d1ba3a8b03af20b081763176e2
sha256	2ae0501e2d1f0b897bd41eb8d6c3204c173acd7fce755b7a854ed7d7bb9333f3
sha512	6372828d77085276c28a0306c81681e1688b329a366a3a42093d41d554a6424391054732e46e684f7661ec4336dc0d73af22c19926a39129f3a0e3a7fac3d681
ripemd-160	f1e9bdbd2372b5619b0d6aa04dfb3b43291585a3

21031871 as geometric shapes

Circle

Radius = n

Diameter	42063742
Circumference	132147142.8497
Area	1.3896508307167E+15

Sphere

Radius = n

Volume	3.8969276008902E+22
Surface area	5.5586033228668E+15
Circumference	132147142.8497

Square

Length = n

Perimeter	84127484
Area	442339597760641
Diagonal	29743557.210281

Cube

Length = n

Surface area	2654037586563846
Volume	9.3032293582937E+21
Space diagonal	36428269.150234

Equilateral Triangle

Length = n

Perimeter	63095613
Area	1.9153866438025E+14
Altitude	18214134.575117

Triangular Pyramid

Length = n

Surface area	1.9153866438025E+14
Volume	1.0963960943639E+21
Height	9914519.0700938