21081888 (number)

21081888 is an even 8-digits composite number following 21081887 and preceding 21081889. In scientific notation, it is written as 2.1081888 × 10^7. The sum of its digits is 36. It has a total of 8 prime factors and 48 positive divisors. There are 6921600 positive integers (up to 21081888) that are relatively prime to 21081888.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 2.1081888 × 10^7
Engineering notation 2.1081888 × 10^6

Prime Factorization of 21081888

Prime Factorization 2 × 2 × 2 × 2 × 2 × 9 × 71 × 1031

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 8
Total number of prime factors
rad Radical 1317618
Product of the distinct prime numbers

The prime factorization of 21081888 is 2 × 2 × 2 × 2 × 2 × 9 × 71 × 1031. Since it has a total of 8 prime factors.

Most popular turbo-numbers

Basic calculations (n = 21081888)

Multiplication

n×y
n×2 42163776
n×3 63245664
n×4 84327552
n×5 105409440

Division

n÷y
n÷2 10540944
n÷3 7027296
n÷3 5270472
n÷5 4216377.6

Exponentiation

ny
n2 444446001644544
n3 9.3697608287181E+21
n4 1.9753224837782E+29
n5 4.1643527366894E+36

Nth Root

y√n
2√n 4591.5017151255
3√n 276.25056011571
4√n 67.760620681377
5√n 29.15962270407

Divisors of 21081888

48 divisors

τ Total Divisors 48
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -21081887
Sum of the proper positive divisors of n
A Arithmetic Mean 0.020833333333333
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 48
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21081888 can be divided by 48 positive divisors. The sum of these divisors (counting 21081888) is 1, the average is 0.020833333333333.

Base conversion 21081888

Base System Value
2 Binary 1010000011010111100100000
3 Ternary 1110200001220200
4 Quaternary 1100122330200
5 Quinary 20344110023
6 Senary 2031505200
8 Octal 120327440
10 Decimal 21081888
12 Duodecimal 7088200
16 Hexadecimal 141af20
20 Vigesimal 6bf4e8
36 Base36 cjuw0

Cryptographic Hash Functions

md5 e0fa929f1ae1fa231e0bba7c94c62bb7
sha1 95be413e0e5750a86f3a266ba3e8c9f4d1c23123
sha256 fc06c554fbbc9d6d0569d11bd01165cdd4d12320097125aa3e1ca9e4ced16c3c
sha512 fdd6b3833eacc2f4a81ecd75d9360cc340899595ee34ffa34aa329f31ff7b7e0433e0f0dd93fc1e8fb24013938660817c084c31c37e82547df3c6169cd6bf714
ripemd-160 63a2c108de93984bf2cf3eaf971c5d148540b54e

21081888 as geometric shapes

Circle

Radius = n
Diameter 42163776
Circumference 132461408.92921
Area 1.3962682936839E+15

Sphere

Radius = n
Volume 3.9247962380526E+22
Surface area 5.5850731747354E+15
Circumference 132461408.92921

Square

Length = n
Perimeter 84327552
Area 444446001644544
Diagonal 29814291.930031

Cube

Length = n
Surface area 2666676009867264
Volume 9.3697608287181E+21
Space diagonal 36514901.135477

Equilateral Triangle

Length = n
Perimeter 63245664
Area 1.924507640173E+14
Altitude 18257450.567738

Triangular Pyramid

Length = n
Surface area 1.924507640173E+14
Volume 1.1042369033471E+21
Height 9938097.3100102