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

21491661 (number)

21491661 is an odd 8-digits composite number following 21491660 and preceding 21491662. In scientific notation, it is written as 2.1491661 × 10^7. The sum of its digits is 30. It has a total of 3 prime factors and 8 positive divisors. There are 14316752 positive integers (up to 21491661) that are relatively prime to 21491661.

Interesting facts

21491661 has 8 divisors, whose sum is 28677600
The reverse of 21491661 is 16619412
Previous prime number is 2099

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 30
Digital Root 3

Name

Name	twenty-one million four hundred ninety-one thousand six hundred sixty-one

Notation

Scientific notation	2.1491661 × 10^7
Engineering notation	2.1491661 × 10^6

Prime Factorization of 21491661

Prime Factorization 3 × 2099 × 3413

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	21491661	Product of the distinct prime numbers

The prime factorization of 21491661 is 3 × 2099 × 3413. Since it has a total of 3 prime factors.

Most popular turbo-numbers

4, 8, 43, 96, 713, 869, 409, 3143, 13681, 56487, 520467, 524837, 8654684, 1514279, 96265878, 89977116, 569560152, 271235098, 4567605548, 3397119744

Basic calculations (n = 21491661)

Multiplication

n×y

n×2	42983322
n×3	64474983
n×4	85966644
n×5	107458305

Division

n÷y

n÷2	10745830.5
n÷3	7163887
n÷3	5372915.25
n÷5	4298332.2

Exponentiation

n^y

n²	461891492538921
n³	9.9268153764305E+21
n⁴	2.1334375087983E+29
n⁵	4.5851115703778E+36

Nth Root

^y√n

²√n	4635.9099430425
³√n	278.02893355154
⁴√n	68.08751679304
⁵√n	29.272107831285

Divisors of 21491661

1, 3, 2099, 3413, 6297, 10239, 7163887, 21491661

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	-21491660	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 21491661 can be divided by 8 positive divisors. The sum of these divisors (counting 21491661) is 1, the average is 0.125.

Base conversion 21491661

Base	System	Value
2	Binary	1010001111110111111001101
3	Ternary	1111102220000110
4	Quaternary	1101332333031
5	Quinary	21000213121
6	Senary	2044350233
8	Octal	121767715
10	Decimal	21491661
12	Duodecimal	7245379
16	Hexadecimal	147efcd
20	Vigesimal	6e6931
36	Base36	csn2l

Cryptographic Hash Functions

md5	d77498723984d458c97a58e9afa3243a
sha1	a8eaeb335913d6d7e857495accf308dd2f86fbbb
sha256	27ec3877fe5cb69490b4067e94b1066d0faf27fa2c4bd0e9f6bed46833b5e336
sha512	4e045c5d8707232452154fc022450fb5d658e52e9ed084440cd29e3fb3c1a62db73be8569f4d18a23cec9b42d882cbf4a6711d3cedaa966cb35bd1540ee9def2
ripemd-160	85c485fcd490ecbac499e71b5ab64dc74492638f

21491661 as geometric shapes

Circle

Radius = n

Diameter	42983322
Circumference	135036088.62208
Area	1.4510749197159E+15

Sphere

Radius = n

Volume	4.1581347013515E+22
Surface area	5.8042996788636E+15
Circumference	135036088.62208

Square

Length = n

Perimeter	85966644
Area	461891492538921
Diagonal	30393798.464125

Cube

Length = n

Surface area	2771348955233526
Volume	9.9268153764305E+21
Space diagonal	37224648.791047

Equilateral Triangle

Length = n

Perimeter	64474983
Area	2.0000488316531E+14
Altitude	18612324.395523

Triangular Pyramid

Length = n

Surface area	2.0000488316531E+14
Volume	1.1698864113768E+21
Height	10131266.154708