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

21138081 (number)

21138081 is an odd 8-digits composite number following 21138080 and preceding 21138082. In scientific notation, it is written as 2.1138081 × 10^7. The sum of its digits is 24. It has a total of 3 prime factors and 8 positive divisors. There are 13479312 positive integers (up to 21138081) that are relatively prime to 21138081.

Interesting facts

21138081 has 8 divisors, whose sum is 29409600
The reverse of 21138081 is 18083112
Previous prime number is 23

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 24
Digital Root 6

Name

Name	twenty-one million one hundred thirty-eight thousand eighty-one

Notation

Scientific notation	2.1138081 × 10^7
Engineering notation	2.1138081 × 10^6

Prime Factorization of 21138081

Prime Factorization 3 × 23 × 306349

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	21138081	Product of the distinct prime numbers

The prime factorization of 21138081 is 3 × 23 × 306349. Since it has a total of 3 prime factors.

Most popular turbo-numbers

5, 1, 11, 27, 867, 422, 3113, 1454, 97398, 10090, 146636, 932836, 6928012, 4092321, 51412608, 42335516, 371908747, 918188667, 6617699464, 8265756507

Basic calculations (n = 21138081)

Multiplication

n×y

n×2	42276162
n×3	63414243
n×4	84552324
n×5	105690405

Division

n÷y

n÷2	10569040.5
n÷3	7046027
n÷3	5284520.25
n÷5	4227616.2

Exponentiation

n^y

n²	446818468362561
n³	9.4448849765438E+21
n⁴	1.9964674366986E+29
n⁵	4.2201490390798E+36

Nth Root

^y√n

²√n	4597.6168826904
³√n	276.49578761158
⁴√n	67.805728981336
⁵√n	29.175150938084

Divisors of 21138081

1, 3, 23, 69, 306349, 919047, 7046027, 21138081

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	-21138080	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 21138081 can be divided by 8 positive divisors. The sum of these divisors (counting 21138081) is 1, the average is 0.125.

Base conversion 21138081

Base	System	Value
2	Binary	1010000101000101010100001
3	Ternary	1110202220222220
4	Quaternary	1100220222201
5	Quinary	20402404311
6	Senary	2033021253
8	Octal	120505241
10	Decimal	21138081
12	Duodecimal	70b4829
16	Hexadecimal	1428aa1
20	Vigesimal	6c2541
36	Base36	cl28x

Cryptographic Hash Functions

md5	b349d0fe67589636f1633f35a7b3e093
sha1	8cdad321f43aac9fd7625e1b8167fea2d2e2b443
sha256	9e312afaf45158f41a60a8ba39e5b131d6380b9851b415648e45fdbf4cafc4f1
sha512	ae2cfbb5c54c6c5c175e4b84a9f8c5e040294465ffb62ed1c857b7efc07c65cc947ab3734286a268b6cbd0b3d0720586dfa4eec04167e077bd167b8121c93bfa
ripemd-160	32325e1b9f1c13d4c7c6823d419414455fbcc854

21138081 as geometric shapes

Circle

Radius = n

Diameter	42276162
Circumference	132814479.96117
Area	1.4037216176961E+15

Sphere

Radius = n

Volume	3.9562641675081E+22
Surface area	5.6148864707843E+15
Circumference	132814479.96117

Square

Length = n

Perimeter	84552324
Area	446818468362561
Diagonal	29893760.832741

Cube

Length = n

Surface area	2680910810175366
Volume	9.4448849765438E+21
Space diagonal	36612230.266506

Equilateral Triangle

Length = n

Perimeter	63414243
Area	1.9347807224102E+14
Altitude	18306115.133253

Triangular Pyramid

Length = n

Surface area	1.9347807224102E+14
Volume	1.1130903690735E+21
Height	9964586.944247