21686912 (number)

21686912 is an even 8-digits composite number following 21686911 and preceding 21686913. In scientific notation, it is written as 2.1686912 × 10^7. The sum of its digits is 35. It has a total of 9 prime factors and 32 positive divisors. There are 10008576 positive integers (up to 21686912) that are relatively prime to 21686912.

Interesting facts

Basic properties

Name

Name twenty-one million six hundred eighty-six thousand nine hundred twelve

Notation

Scientific notation 2.1686912 × 10^7
Engineering notation 2.1686912 × 10^6

Prime Factorization of 21686912

Prime Factorization 2 × 2 × 2 × 2 × 2 × 2 × 2 × 13 × 13033

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 9
Total number of prime factors
rad Radical 338858
Product of the distinct prime numbers

The prime factorization of 21686912 is 2 × 2 × 2 × 2 × 2 × 2 × 2 × 13 × 13033. Since it has a total of 9 prime factors.

Most popular turbo-numbers

Basic calculations (n = 21686912)

Multiplication

n×y
n×2 43373824
n×3 65060736
n×4 86747648
n×5 108434560

Division

n÷y
n÷2 10843456
n÷3 7228970.6666667
n÷3 5421728
n÷5 4337382.4

Exponentiation

ny
n2 470322152095744
n3 1.0199835124151E+22
n4 2.2120292675197E+29
n5 4.7972084066125E+36

Nth Root

y√n
2√n 4656.9208711336
3√n 278.86835770921
4√n 68.241635906048
5√n 29.325102814886

Divisors of 21686912

32 divisors

τ Total Divisors 32
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -21686911
Sum of the proper positive divisors of n
A Arithmetic Mean 0.03125
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 32
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21686912 can be divided by 32 positive divisors. The sum of these divisors (counting 21686912) is 1, the average is 0.03125.

Base conversion 21686912

Base System Value
2 Binary 1010010101110101010000000
3 Ternary 1111210210211222
4 Quaternary 1102232222000
5 Quinary 21022440122
6 Senary 2052454212
8 Octal 122565200
10 Decimal 21686912
12 Duodecimal 731a368
16 Hexadecimal 14aea80
20 Vigesimal 6fah5c
36 Base36 cwtq8

Cryptographic Hash Functions

md5 7a99f14b2130fd28bed9994505530129
sha1 ecad4f68912405d4be19778fa4c5413c9dbf68af
sha256 9cd9941769c61874fe244d823684c4866810e8a393cbc03ceeb970a90617c7cf
sha512 e5c9ace32bafbf15cec72a5d6b90ce566659a0ffcc09905445759a74cf46239c3e29d80fe5d0f1722061a58e7cf9a1b481fd4a3da2d76b8e80671b6eaeeeb476
ripemd-160 2053cb81b758cb3f11bce657945d0eb3b00235c7

21686912 as geometric shapes

Circle

Radius = n
Diameter 43373824
Circumference 136262886.8365
Area 1.4775606178445E+15

Sphere

Radius = n
Volume 4.272496945848E+22
Surface area 5.9102424713781E+15
Circumference 136262886.8365

Square

Length = n
Perimeter 86747648
Area 470322152095744
Diagonal 30669925.076392

Cube

Length = n
Surface area 2821932912574464
Volume 1.0199835124151E+22
Space diagonal 37562833.443275

Equilateral Triangle

Length = n
Perimeter 65060736
Area 2.0365546583874E+14
Altitude 18781416.721638

Triangular Pyramid

Length = n
Surface area 2.0365546583874E+14
Volume 1.202062097212E+21
Height 10223308.358797