21138085 (number)

21138085 is an odd 8-digits composite number following 21138084 and preceding 21138086. In scientific notation, it is written as 2.1138085 × 10^7. The sum of its digits is 28. It has a total of 3 prime factors and 8 positive divisors. There are 16816320 positive integers (up to 21138085) that are relatively prime to 21138085.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 2.1138085 × 10^7
Engineering notation 2.1138085 × 10^6

Prime Factorization of 21138085

Prime Factorization 5 × 181 × 23357

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 21138085
Product of the distinct prime numbers

The prime factorization of 21138085 is 5 × 181 × 23357. Since it has a total of 3 prime factors.

Most popular turbo-numbers

6, 7, 75, 63, 539, 237, 8225, 3081, 57791, 32589, 242751, 768698, 8784541, 770254, 57533721, 33138853, 32843159, 634355254, 2026539550, 4636199415

Basic calculations (n = 21138085)

Multiplication

n×y
n×2 42276170
n×3 63414255
n×4 84552340
n×5 105690425

Division

n÷y
n÷2 10569042.5
n÷3 7046028.3333333
n÷3 5284521.25
n÷5 4227617

Exponentiation

ny
n2 446818637467225
n3 9.4448903383664E+21
n4 1.9964689478807E+29
n5 4.2201530320162E+36

Nth Root

y√n
2√n 4597.6173176984
3√n 276.49580505219
4√n 67.805732189088
5√n 29.175152042258

Divisors of 21138085

1, 5, 181, 905, 23357, 116785, 4227617, 21138085

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 -21138084
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 21138085 can be divided by 8 positive divisors. The sum of these divisors (counting 21138085) is 1, the average is 0.125.

Base conversion 21138085

Base System Value
2 Binary 1010000101000101010100101
3 Ternary 1110202221000001
4 Quaternary 1100220222211
5 Quinary 20402404320
6 Senary 2033021301
8 Octal 120505245
10 Decimal 21138085
12 Duodecimal 70b4831
16 Hexadecimal 1428aa5
20 Vigesimal 6c2545
36 Base36 cl291

Cryptographic Hash Functions

md5 81d22a829df593264212e6c82716ef26
sha1 1890d4779f1817aad067775f35c5fdc9838a76df
sha256 308b2457cd521e57edf3a9895b95b026035a4611e40acd48bfb75e9edb7869ec
sha512 37c30165ddaa8bcbbf66c97b7b3dfbe55533552e15b996a8f998f17f397b61f990999838a8f1a80726b9834dd2ac6d9fd07b15605cb078e5b2ec50d6c63a8cda
ripemd-160 275347171177d352c0a9650ed855c93167b2a564

21138085 as geometric shapes

Circle

Radius = n
Diameter 42276170
Circumference 132814505.09391
Area 1.403722148954E+15

Sphere

Radius = n
Volume 3.9562664134631E+22
Surface area 5.6148885958161E+15
Circumference 132814505.09391

Square

Length = n
Perimeter 84552340
Area 446818637467225
Diagonal 29893766.489595

Cube

Length = n
Surface area 2680911824803350
Volume 9.4448903383664E+21
Space diagonal 36612237.19471

Equilateral Triangle

Length = n
Perimeter 63414255
Area 1.9347814546548E+14
Altitude 18306118.597355

Triangular Pyramid

Length = n
Surface area 1.9347814546548E+14
Volume 1.1130910009704E+21
Height 9964588.8298651