21131209 (number)

21131209 is an odd 8-digits composite number following 21131208 and preceding 21131210. In scientific notation, it is written as 2.1131209 × 10^7. The sum of its digits is 19. It has a total of 3 prime factors and 8 positive divisors. There are 19182000 positive integers (up to 21131209) that are relatively prime to 21131209.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 2.1131209 × 10^7
Engineering notation 2.1131209 × 10^6

Prime Factorization of 21131209

Prime Factorization 11 × 1151 × 1669

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 21131209
Product of the distinct prime numbers

The prime factorization of 21131209 is 11 × 1151 × 1669. Since it has a total of 3 prime factors.

Most popular turbo-numbers

3, 7, 39, 48, 527, 285, 918, 5484, 36414, 80553, 478519, 788509, 5128108, 8034604, 99110910, 18829655, 538471674, 911784866, 2670190924, 8445041554

Basic calculations (n = 21131209)

Multiplication

n×y
n×2 42262418
n×3 63393627
n×4 84524836
n×5 105656045

Division

n÷y
n÷2 10565604.5
n÷3 7043736.3333333
n÷3 5282802.25
n÷5 4226241.8

Exponentiation

ny
n2 446527993801681
n3 9.435676361374E+21
n4 1.9938724924855E+29
n5 4.2132936358063E+36

Nth Root

y√n
2√n 4596.8694782428
3√n 276.46582139413
4√n 67.800217390822
5√n 29.173253720315

Divisors of 21131209

1, 11, 1151, 1669, 12661, 18359, 1921019, 21131209

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 -21131208
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 21131209 can be divided by 8 positive divisors. The sum of these divisors (counting 21131209) is 1, the average is 0.125.

Base conversion 21131209

Base System Value
2 Binary 1010000100110111111001001
3 Ternary 1110202120120101
4 Quaternary 1100212333021
5 Quinary 20402144314
6 Senary 2032525401
8 Octal 120467711
10 Decimal 21131209
12 Duodecimal 70b0861
16 Hexadecimal 1426fc9
20 Vigesimal 6c1809
36 Base36 ckwy1

Cryptographic Hash Functions

md5 40d07b19f0df1b9566fb8c5a228200d5
sha1 f7130165f7f2bace1f3d37ba3361c86b9c048463
sha256 d84b4ebdd4e064bcd9054dda6f83a6f5836f47327f0279d1176e00384e215c35
sha512 57a17af7829cb3a02b0a86dbeda7dd48f6a39806185b84f51910c870bbdc444859421c4e898200d4052bdd5f4b3abf4a6be2509cfa9250644b2d3c46dda0d871
ripemd-160 8158b4924f461ec71d060a8b0b4143203080705d

21131209 as geometric shapes

Circle

Radius = n
Diameter 42262418
Circumference 132771301.91174
Area 1.4028090649495E+15

Sphere

Radius = n
Volume 3.9524068718058E+22
Surface area 5.6112362597982E+15
Circumference 132771301.91174

Square

Length = n
Perimeter 84524836
Area 446527993801681
Diagonal 29884042.35714

Cube

Length = n
Surface area 2679167962810086
Volume 9.435676361374E+21
Space diagonal 36600327.613357

Equilateral Triangle

Length = n
Perimeter 63393627
Area 1.9335229306658E+14
Altitude 18300163.806678

Triangular Pyramid

Length = n
Surface area 1.9335229306658E+14
Volume 1.1120051233682E+21
Height 9961347.4523801