21000909 (number)

21000909 is an odd 8-digits composite number following 21000908 and preceding 21000910. In scientific notation, it is written as 2.1000909 × 10^7. The sum of its digits is 21. It has a total of 5 prime factors and 32 positive divisors. There are 12469248 positive integers (up to 21000909) that are relatively prime to 21000909.

Interesting facts

Basic properties

Name

Name twenty-one million nine hundred nine

Notation

Scientific notation 2.1000909 × 10^7
Engineering notation 2.1000909 × 10^6

Prime Factorization of 21000909

Prime Factorization 3 × 23 × 19 × 193 × 83

Composite number
ω Distinct Factors 5
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 21000909
Product of the distinct prime numbers

The prime factorization of 21000909 is 3 × 23 × 19 × 193 × 83. Since it has a total of 5 prime factors.

Most popular turbo-numbers

9, 1, 93, 53, 617, 376, 3367, 7410, 34124, 33946, 422609, 132999, 3279249, 6391585, 83208974, 98515280, 63410000, 11062966, 8555166034, 7480583614

Basic calculations (n = 21000909)

Multiplication

n×y
n×2 42001818
n×3 63002727
n×4 84003636
n×5 105004545

Division

n÷y
n÷2 10500454.5
n÷3 7000303
n÷3 5250227.25
n÷5 4200181.8

Exponentiation

ny
n2 441038178826281
n3 9.2622026590565E+21
n4 1.945146751824E+29
n5 4.0849849926702E+36

Nth Root

y√n
2√n 4582.6748739137
3√n 275.89639831413
4√n 67.695456818857
5√n 29.137186824

Divisors of 21000909

1, 3, 19, 23, 57, 69, 83, 193, 249, 437, 579, 1311, 1577, 1909, 3667, 4439, 4731, 5727, 11001, 13317, 16019, 36271, 48057, 84341, 108813, 253023, 304361, 368437, 913083, 1105311, 7000303, 21000909

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 -21000908
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 21000909 can be divided by 32 positive divisors. The sum of these divisors (counting 21000909) is 1, the average is 0.03125.

Base conversion 21000909

Base System Value
2 Binary 1010000000111001011001101
3 Ternary 1110111221211110
4 Quaternary 1100013023031
5 Quinary 20334012114
6 Senary 2030042233
8 Octal 120071315
10 Decimal 21000909
12 Duodecimal 7049379
16 Hexadecimal 14072cd
20 Vigesimal 6b5259
36 Base36 ci4el

Cryptographic Hash Functions

md5 0c18b9b4b5692ab9f197e606759947de
sha1 339c20eaf3dc7b1c23a1b13ff9ab7f3599b5857f
sha256 f47ae4c33656715e4ef8c6a7c9c464ef39c1efec35e14a4672da50051d138dcb
sha512 4a2739bd7f2addbd635945c968f194ef718d7d64f8915a443aeb2d6b40087a47efef37d8918f15d5e2b217429cfc7a2cfb2a476c0675368ce9b23d252176e449
ripemd-160 f1da7d2abc0c5c32df356c56023cd454cb902e9d

21000909 as geometric shapes

Circle

Radius = n
Diameter 42001818
Circumference 131952602.86622
Area 1.3855623025533E+15

Sphere

Radius = n
Volume 3.8797423773002E+22
Surface area 5.5422492102131E+15
Circumference 131952602.86622

Square

Length = n
Perimeter 84003636
Area 441038178826281
Diagonal 29699770.329963

Cube

Length = n
Surface area 2646229072957686
Volume 9.2622026590565E+21
Space diagonal 36374641.393131

Equilateral Triangle

Length = n
Perimeter 63002727
Area 1.9097513345119E+14
Altitude 18187320.696565

Triangular Pyramid

Length = n
Surface area 1.9097513345119E+14
Volume 1.0915610514905E+21
Height 9899923.4433211