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

21086721 (number)

21086721 is an odd 8-digits composite number following 21086720 and preceding 21086722. In scientific notation, it is written as 2.1086721 × 10^7. The sum of its digits is 27. It has a total of 2 prime factors and 4 positive divisors. There are 14057808 positive integers (up to 21086721) that are relatively prime to 21086721.

Interesting facts

21086721 has 4 divisors, whose sum is 23429700
The reverse of 21086721 is 12768012
Previous prime number is 9

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 27
Digital Root 9

Name

Name	twenty-one million eighty-six thousand seven hundred twenty-one

Notation

Scientific notation	2.1086721 × 10^7
Engineering notation	2.1086721 × 10^6

Prime Factorization of 21086721

Prime Factorization 9 × 2342969

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	21086721	Product of the distinct prime numbers

The prime factorization of 21086721 is 9 × 2342969. Since it has a total of 2 prime factors.

Most popular turbo-numbers

8, 2, 1, 69, 338, 807, 3272, 5379, 36247, 38679, 220544, 312057, 9624086, 1689082, 55129512, 24312392, 891009466, 358108197, 8291670927, 7494441442

Basic calculations (n = 21086721)

Multiplication

n×y

n×2	42173442
n×3	63260163
n×4	84346884
n×5	105433605

Division

n÷y

n÷2	10543360.5
n÷3	7028907
n÷3	5271680.25
n÷5	4217344.2

Exponentiation

n^y

n²	444649802531841
n³	9.376206328694E+21
n⁴	1.9771344689161E+29
n⁵	4.1691282925516E+36

Nth Root

^y√n

²√n	4592.0279833642
³√n	276.27166855004
⁴√n	67.764503859795
⁵√n	29.160959543875

Divisors of 21086721

1, 9, 2342969, 21086721

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	-21086720	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 21086721 can be divided by 4 positive divisors. The sum of these divisors (counting 21086721) is 1, the average is 0.25.

Base conversion 21086721

Base	System	Value
2	Binary	1010000011100001000000001
3	Ternary	1110200022112200
4	Quaternary	1100130020001
5	Quinary	20344233341
6	Senary	2031543413
8	Octal	120341001
10	Decimal	21086721
12	Duodecimal	708ab69
16	Hexadecimal	141c201
20	Vigesimal	6bfgg1
36	Base36	cjym9

Cryptographic Hash Functions

md5	d003858c199df1e8cb7f18aea3ae8709
sha1	2fe80be7439aa20dfe96d7d1e644e1737f9bf03c
sha256	46f0c835afaab3caf5e795761783c0e15d9b9751da85087a8b69f2a04da3bec9
sha512	d8f518895542877a2aed8532136d009ed9e5e472218d6296ca6f4d8196cd700e94455b9ca478ebe15bcf3f0025bfdbf4cc76b89b6a596bfd78934a6e435d35a3
ripemd-160	5e1889f284003cc280b0ddafa460e7b5c447df1c

21086721 as geometric shapes

Circle

Radius = n

Diameter	42173442
Circumference	132491775.5638
Area	1.3969085530542E+15

Sphere

Radius = n

Volume	3.927496122769E+22
Surface area	5.5876342122167E+15
Circumference	132491775.5638

Square

Length = n

Perimeter	84346884
Area	444649802531841
Diagonal	29821126.824178

Cube

Length = n

Surface area	2667898815191046
Volume	9.376206328694E+21
Space diagonal	36523272.13703

Equilateral Triangle

Length = n

Perimeter	63260163
Area	1.9253901239015E+14
Altitude	18261636.068515

Triangular Pyramid

Length = n

Surface area	1.9253901239015E+14
Volume	1.104996512804E+21
Height	9940375.6080592