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

21491816 (number)

21491816 is an even 8-digits composite number following 21491815 and preceding 21491817. In scientific notation, it is written as 2.1491816 × 10^7. The sum of its digits is 32. It has a total of 4 prime factors and 8 positive divisors. There are 10745904 positive integers (up to 21491816) that are relatively prime to 21491816.

Interesting facts

21491816 has 8 divisors, whose sum is 40297170
The reverse of 21491816 is 61819412
Previous prime number is 2

Basic properties

Is Prime? no
Number parity even
Number length 8
Sum of Digits 32
Digital Root 5

Name

Name	twenty-one million four hundred ninety-one thousand eight hundred sixteen

Notation

Scientific notation	2.1491816 × 10^7
Engineering notation	2.1491816 × 10^6

Prime Factorization of 21491816

Prime Factorization 2 × 2 × 2 × 2686477

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	4	Total number of prime factors
rad	Radical	5372954	Product of the distinct prime numbers

The prime factorization of 21491816 is 2 × 2 × 2 × 2686477. Since it has a total of 4 prime factors.

Most popular turbo-numbers

5, 9, 26, 40, 961, 290, 3672, 4844, 53637, 77241, 52807, 893247, 3930720, 4642220, 56884644, 58071556, 5983975, 758656396, 3420670693, 4765242369

Basic calculations (n = 21491816)

Multiplication

n×y

n×2	42983632
n×3	64475448
n×4	85967264
n×5	107459080

Division

n÷y

n÷2	10745908
n÷3	7163938.6666667
n÷3	5372954
n÷5	4298363.2

Exponentiation

n^y

n²	461898154977856
n³	9.9270301575236E+21
n⁴	2.1334990557195E+29
n⁵	4.5852769141697E+36

Nth Root

^y√n

²√n	4635.9266603345
³√n	278.02960194072
⁴√n	68.087639556196
⁵√n	29.272150053835

Divisors of 21491816

1, 2, 4, 8, 2686477, 5372954, 10745908, 21491816

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	-21491815	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 21491816 can be divided by 8 positive divisors. The sum of these divisors (counting 21491816) is 1, the average is 0.125.

Base conversion 21491816

Base	System	Value
2	Binary	1010001111111000001101000
3	Ternary	1111102220020012
4	Quaternary	1101333001220
5	Quinary	21000214231
6	Senary	2044351052
8	Octal	121770150
10	Decimal	21491816
12	Duodecimal	7245488
16	Hexadecimal	147f068
20	Vigesimal	6e69ag
36	Base36	csn6w

Cryptographic Hash Functions

md5	05f909b25f97c36f9795de647757c685
sha1	3b3a2905f8ebe4d036d808133c0ac2fe3acf8688
sha256	4592fa78a667f219f194f45cf1a80a577fc73b5fb2e8f213d35497551751adb9
sha512	92b430203341237f7f7a98864914be75d3ba6d9c311fb0acdac17d284dc7699d34c812b1be4c56e83ef261f6a21569123e69a765c6b0bbbe35fc1ccbde584450
ripemd-160	736f72c01e088094a34775d7e16252487fae1cd6

21491816 as geometric shapes

Circle

Radius = n

Diameter	42983632
Circumference	135037062.51581
Area	1.4510958503851E+15

Sphere

Radius = n

Volume	4.1582246686454E+22
Surface area	5.8043834015404E+15
Circumference	135037062.51581

Square

Length = n

Perimeter	85967264
Area	461898154977856
Diagonal	30394017.667227

Cube

Length = n

Surface area	2771388929867136
Volume	9.9270301575236E+21
Space diagonal	37224917.258922

Equilateral Triangle

Length = n

Perimeter	64475448
Area	2.0000776808599E+14
Altitude	18612458.629461

Triangular Pyramid

Length = n

Surface area	2.0000776808599E+14
Volume	1.1699117235714E+21
Height	10131339.222409