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

21686871 (number)

21686871 is an odd 8-digits composite number following 21686870 and preceding 21686872. In scientific notation, it is written as 2.1686871 × 10^7. The sum of its digits is 39. It has a total of 3 prime factors and 8 positive divisors. There are 14447160 positive integers (up to 21686871) that are relatively prime to 21686871.

Interesting facts

21686871 has 8 divisors, whose sum is 28937344
The reverse of 21686871 is 17868612
Previous prime number is 2647

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 39
Digital Root 3

Name

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

Notation

Scientific notation	2.1686871 × 10^7
Engineering notation	2.1686871 × 10^6

Prime Factorization of 21686871

Prime Factorization 3 × 2647 × 2731

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	21686871	Product of the distinct prime numbers

The prime factorization of 21686871 is 3 × 2647 × 2731. Since it has a total of 3 prime factors.

Most popular turbo-numbers

2, 3, 6, 50, 82, 859, 1631, 4706, 59514, 16243, 801458, 634718, 8522780, 6400917, 59044817, 58474461, 895735329, 326665937, 8273138666, 1559844154

Basic calculations (n = 21686871)

Multiplication

n×y

n×2	43373742
n×3	65060613
n×4	86747484
n×5	108434355

Division

n÷y

n÷2	10843435.5
n÷3	7228957
n÷3	5421717.75
n÷5	4337374.2

Exponentiation

n^y

n²	470320373770641
n³	1.0199777274636E+22
n⁴	2.2120125398376E+29
n⁵	4.7971630601839E+36

Nth Root

^y√n

²√n	4656.9164690812
³√n	278.86818197173
⁴√n	68.24160365262
⁵√n	29.325091726815

Divisors of 21686871

1, 3, 2647, 2731, 7941, 8193, 7228957, 21686871

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	-21686870	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 21686871 can be divided by 8 positive divisors. The sum of these divisors (counting 21686871) is 1, the average is 0.125.

Base conversion 21686871

Base	System	Value
2	Binary	1010010101110101001010111
3	Ternary	1111210210210110
4	Quaternary	1102232221113
5	Quinary	21022434441
6	Senary	2052454103
8	Octal	122565127
10	Decimal	21686871
12	Duodecimal	731a333
16	Hexadecimal	14aea57
20	Vigesimal	6fah3b
36	Base36	cwtp3

Cryptographic Hash Functions

md5	1c031f3a20b4779579dc43f1a20eac24
sha1	ea6eb842dfaa5032002181819d6082d26a0fc59f
sha256	94df90a17d62491bef059fc9165f4301dab03ccd52b92519c0e2f683ca685293
sha512	8f532bc4da1add816aeb5ee93543465afe806016d8a91721316eaf2b791cf7760be8ffb3c3a013baf4ff08798978effce3b0089206be4060793585940add00e5
ripemd-160	6f0f0a521cc07f93f44792d4cb908eeded28a8b8

21686871 as geometric shapes

Circle

Radius = n

Diameter	43373742
Circumference	136262629.2259
Area	1.4775550310715E+15

Sphere

Radius = n

Volume	4.2724727138997E+22
Surface area	5.9102201242858E+15
Circumference	136262629.2259

Square

Length = n

Perimeter	86747484
Area	470320373770641
Diagonal	30669867.093636

Cube

Length = n

Surface area	2821922242623846
Volume	1.0199777274636E+22
Space diagonal	37562762.429192

Equilateral Triangle

Length = n

Perimeter	65060613
Area	2.0365469580138E+14
Altitude	18781381.214596

Triangular Pyramid

Length = n

Surface area	2.0365469580138E+14
Volume	1.2020552795812E+21
Height	10223289.031212