21131228 (number)

21131228 is an even 8-digits composite number following 21131227 and preceding 21131229. In scientific notation, it is written as 2.1131228 × 10^7. The sum of its digits is 20. It has a total of 4 prime factors and 12 positive divisors. There are 10515120 positive integers (up to 21131228) that are relatively prime to 21131228.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 2.1131228 × 10^7
Engineering notation 2.1131228 × 10^6

Prime Factorization of 21131228

Prime Factorization 2 × 2 × 211 × 25037

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 10565614
Product of the distinct prime numbers

The prime factorization of 21131228 is 2 × 2 × 211 × 25037. Since it has a total of 4 prime factors.

Most popular turbo-numbers

3, 6, 86, 43, 828, 879, 5031, 8393, 50878, 17554, 839306, 872652, 8200264, 416109, 86170694, 66946554, 473345199, 423375839, 5021401667, 4965566894

Basic calculations (n = 21131228)

Multiplication

n×y
n×2 42262456
n×3 63393684
n×4 84524912
n×5 105656140

Division

n÷y
n÷2 10565614
n÷3 7043742.6666667
n÷3 5282807
n÷5 4226245.6

Exponentiation

ny
n2 446528796787984
n3 9.4357018134926E+21
n4 1.9938796636092E+29
n5 4.213312577629E+36

Nth Root

y√n
2√n 4596.8715448661
3√n 276.46590425496
4√n 67.800232631357
5√n 29.173258966505

Divisors of 21131228

1, 2, 4, 211, 422, 844, 25037, 50074, 100148, 5282807, 10565614, 21131228

12 divisors

τ Total Divisors 12
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -21131227
Sum of the proper positive divisors of n
A Arithmetic Mean 0.083333333333333
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 12
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21131228 can be divided by 12 positive divisors. The sum of these divisors (counting 21131228) is 1, the average is 0.083333333333333.

Base conversion 21131228

Base System Value
2 Binary 1010000100110111111011100
3 Ternary 1110202120121002
4 Quaternary 1100212333130
5 Quinary 20402144403
6 Senary 2032525432
8 Octal 120467734
10 Decimal 21131228
12 Duodecimal 70b0878
16 Hexadecimal 1426fdc
20 Vigesimal 6c1818
36 Base36 ckwyk

Cryptographic Hash Functions

md5 04bff91eaec6e7dbaac9ecd7b7b0c84f
sha1 e575d2ec92a99bd1fa127e6ebaafe9241f08c717
sha256 31638dcd786e6c2bc619530c07835bd3931ed98aa381a72e2af3f389b5a9839a
sha512 88598e7c27ef673fe0b4691a3d513e5a993f7e3ba54d1d798b872a162a425058460b202da2d2018da8810e34be12bff9a400831d7b8178e34a627faf22aba7c2
ripemd-160 e1a14c279f3cc3d42412126b25503ae0fb2326fe

21131228 as geometric shapes

Circle

Radius = n
Diameter 42262456
Circumference 132771421.29226
Area 1.4028115876054E+15

Sphere

Radius = n
Volume 3.9524175331643E+22
Surface area 5.6112463504217E+15
Circumference 132771421.29226

Square

Length = n
Perimeter 84524912
Area 446528796787984
Diagonal 29884069.227198

Cube

Length = n
Surface area 2679172780727904
Volume 9.4357018134926E+21
Space diagonal 36600360.522322

Equilateral Triangle

Length = n
Perimeter 63393684
Area 1.9335264076985E+14
Altitude 18300180.261161

Triangular Pyramid

Length = n
Surface area 1.9335264076985E+14
Volume 1.1120081229291E+21
Height 9961356.409066