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

21006871 (number)

21006871 is an odd 8-digits composite number following 21006870 and preceding 21006872. In scientific notation, it is written as 2.1006871 × 10^7. The sum of its digits is 25. It has a total of 3 prime factors and 8 positive divisors. There are 20206560 positive integers (up to 21006871) that are relatively prime to 21006871.

Interesting facts

21006871 has 8 divisors, whose sum is 21815424
The reverse of 21006871 is 17860012
Previous prime number is 173

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 25
Digital Root 7

Name

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

Notation

Scientific notation	2.1006871 × 10^7
Engineering notation	2.1006871 × 10^6

Prime Factorization of 21006871

Prime Factorization 31 × 173 × 3917

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	21006871	Product of the distinct prime numbers

The prime factorization of 21006871 is 31 × 173 × 3917. Since it has a total of 3 prime factors.

Most popular turbo-numbers

3, 5, 19, 93, 315, 774, 5528, 6354, 77080, 79802, 825293, 233727, 8584396, 6552627, 27366076, 36965522, 594626124, 102083206, 6049169995, 3075668033

Basic calculations (n = 21006871)

Multiplication

n×y

n×2	42013742
n×3	63020613
n×4	84027484
n×5	105034355

Division

n÷y

n÷2	10503435.5
n÷3	7002290.3333333
n÷3	5251717.75
n÷5	4201374.2

Exponentiation

n^y

n²	441288629210641
n³	9.2700933075948E+21
n⁴	1.9473565427061E+29
n⁵	4.0907867683632E+36

Nth Root

^y√n

²√n	4583.3253212051
³√n	275.92250414751
⁴√n	67.700260865119
⁵√n	29.138841001774

Divisors of 21006871

1, 31, 173, 3917, 5363, 121427, 677641, 21006871

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	-21006870	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 21006871 can be divided by 8 positive divisors. The sum of these divisors (counting 21006871) is 1, the average is 0.125.

Base conversion 21006871

Base	System	Value
2	Binary	1010000001000101000010111
3	Ternary	1110112021000021
4	Quaternary	1100020220113
5	Quinary	20334204441
6	Senary	2030130011
8	Octal	120105027
10	Decimal	21006871
12	Duodecimal	7050907
16	Hexadecimal	1408a17
20	Vigesimal	6b5h3b
36	Base36	ci907

Cryptographic Hash Functions

md5	723b4bb9c4c43ffd86ce40ebf5777935
sha1	cc667127f3914400466e23f0d9026b717a1482f0
sha256	499ab862934782a566205db9581f9249b05f3c377607440abb6b7ae1f1d0c318
sha512	03e55bbfe30f9fe20375ef6aadeb9452cb425cd5d84ef441343d257ffffcbe60e29d1cae078058e56098ccee00f33ef45d29cce92ccbd7615d248e28ef406ba7
ripemd-160	fb86d19a9572cfed9ca54cc68f208275fa7054c4

21006871 as geometric shapes

Circle

Radius = n

Diameter	42013742
Circumference	131990063.21702
Area	1.3863491156409E+15

Sphere

Radius = n

Volume	3.8830476044309E+22
Surface area	5.5453964625634E+15
Circumference	131990063.21702

Square

Length = n

Perimeter	84027484
Area	441288629210641
Diagonal	29708201.871222

Cube

Length = n

Surface area	2647731775263846
Volume	9.2700933075948E+21
Space diagonal	36384967.880045

Equilateral Triangle

Length = n

Perimeter	63020613
Area	1.9108358164881E+14
Altitude	18192483.940023

Triangular Pyramid

Length = n

Surface area	1.9108358164881E+14
Volume	1.0924909733387E+21
Height	9902733.957074