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

21087311 (number)

21087311 is an odd 8-digits composite number following 21087310 and preceding 21087312. In scientific notation, it is written as 2.1087311 × 10^7. The sum of its digits is 23. It has a total of 2 prime factors and 4 positive divisors. There are 18074832 positive integers (up to 21087311) that are relatively prime to 21087311.

Interesting facts

21087311 has 4 divisors, whose sum is 24099792
The reverse of 21087311 is 11378012
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 eighty-seven thousand three hundred eleven

Notation

Scientific notation	2.1087311 × 10^7
Engineering notation	2.1087311 × 10^6

Prime Factorization of 21087311

Prime Factorization 7 × 3012473

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	21087311	Product of the distinct prime numbers

The prime factorization of 21087311 is 7 × 3012473. Since it has a total of 2 prime factors.

Most popular turbo-numbers

2, 5, 33, 69, 505, 551, 6970, 6821, 46345, 58788, 636014, 24254, 3275902, 1410400, 13559367, 83734548, 877067308, 954699090, 3978517476, 4460524010

Basic calculations (n = 21087311)

Multiplication

n×y

n×2	42174622
n×3	63261933
n×4	84349244
n×5	105436555

Division

n÷y

n÷2	10543655.5
n÷3	7029103.6666667
n÷3	5271827.75
n÷5	4217462.2

Exponentiation

n^y

n²	444674685210721
n³	9.3769933808656E+21
n⁴	1.9773557566725E+29
n⁵	4.1697115798594E+36

Nth Root

^y√n

²√n	4592.0922246836
³√n	276.27424519158
⁴√n	67.764977862342
⁵√n	29.161122724993

Divisors of 21087311

1, 7, 3012473, 21087311

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	-21087310	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 21087311 can be divided by 4 positive divisors. The sum of these divisors (counting 21087311) is 1, the average is 0.25.

Base conversion 21087311

Base	System	Value
2	Binary	1010000011100010001001111
3	Ternary	1110200100100112
4	Quaternary	1100130101033
5	Quinary	20344243221
6	Senary	2031550235
8	Octal	120342117
10	Decimal	21087311
12	Duodecimal	708b37b
16	Hexadecimal	141c44f
20	Vigesimal	6bfi5b
36	Base36	cjz2n

Cryptographic Hash Functions

md5	43f472c819330466847328466155e733
sha1	3dc8450fdcf20f1f52bd502ce4dffa1dd9ca7ca7
sha256	d4176d1b736e4c9ce0e0f68846c5e3f135da455ae8d13141e48871c59b25b6ad
sha512	48365472b7fbd9955f068d64ec3a85fbbab323694ff044dfbbcbde840189b657bf6dee8ce02157a9e48e3360ad09114f5398ec289224275d31f4604d63861f96
ripemd-160	4ea16a91a8ac6518fb61d57583a55ade0b10a7ba

21087311 as geometric shapes

Circle

Radius = n

Diameter	42174622
Circumference	132495482.64313
Area	1.3969867242954E+15

Sphere

Radius = n

Volume	3.9278258024117E+22
Surface area	5.5879468971814E+15
Circumference	132495482.64313

Square

Length = n

Perimeter	84349244
Area	444674685210721
Diagonal	29821961.210179

Cube

Length = n

Surface area	2668048111264326
Volume	9.3769933808656E+21
Space diagonal	36524294.047006

Equilateral Triangle

Length = n

Perimeter	63261933
Area	1.9254978690617E+14
Altitude	18262147.023503

Triangular Pyramid

Length = n

Surface area	1.9254978690617E+14
Volume	1.1050892677919E+21
Height	9940653.7367265