21909855 (number)

21909855 is an odd 8-digits composite number following 21909854 and preceding 21909856. In scientific notation, it is written as 2.1909855 × 10^7. The sum of its digits is 39. It has a total of 5 prime factors and 32 positive divisors. There are 9768960 positive integers (up to 21909855) that are relatively prime to 21909855.

Interesting facts

Basic properties

Name

Name twenty-one million nine hundred nine thousand eight hundred fifty-five

Notation

Scientific notation 2.1909855 × 10^7
Engineering notation 2.1909855 × 10^6

Prime Factorization of 21909855

Prime Factorization 3 × 5 × 187 × 73 × 107

Composite number
ω Distinct Factors 5
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 21909855
Product of the distinct prime numbers

The prime factorization of 21909855 is 3 × 5 × 187 × 73 × 107. Since it has a total of 5 prime factors.

Most popular turbo-numbers

4, 9, 63, 94, 327, 855, 3200, 9915, 4904, 33209, 352141, 15600, 4456213, 435270, 10055283, 80799005, 324779053, 400071253, 4734004896, 1945005894

Basic calculations (n = 21909855)

Multiplication

n×y
n×2 43819710
n×3 65729565
n×4 87639420
n×5 109549275

Division

n÷y
n÷2 10954927.5
n÷3 7303285
n÷3 5477463.75
n÷5 4381971

Exponentiation

ny
n2 480041746121025
n3 1.0517645051458E+22
n4 2.3044007801892E+29
n5 5.0489086955833E+36

Nth Root

y√n
2√n 4680.7964065958
3√n 279.82069727982
4√n 68.416346048264
5√n 29.385149236474

Divisors of 21909855

1, 3, 5, 15, 73, 107, 187, 219, 321, 365, 535, 561, 935, 1095, 1605, 2805, 7811, 13651, 20009, 23433, 39055, 40953, 60027, 68255, 100045, 117165, 204765, 300135, 1460657, 4381971, 7303285, 21909855

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 -21909854
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 21909855 can be divided by 32 positive divisors. The sum of these divisors (counting 21909855) is 1, the average is 0.03125.

Base conversion 21909855

Base System Value
2 Binary 1010011100101000101011111
3 Ternary 1112020010200010
4 Quaternary 1103211011133
5 Quinary 21102103410
6 Senary 2101334303
8 Octal 123450537
10 Decimal 21909855
12 Duodecimal 7407393
16 Hexadecimal 14e515f
20 Vigesimal 6giecf
36 Base36 d1lr3

Cryptographic Hash Functions

md5 6f969e5aa1e2466cb1aa96993fc4222c
sha1 16e6aa8b37891cffe4e4fa06690ba3c74682f8cc
sha256 0005c0a6f2e689851291b39b77d7d45edf1eab9463b3a5b366b4f71d3200fe48
sha512 999115c02dd501b1abeb94e6e43a1decff64cd622accc87a0175f14b360f5a706c2ac36f6ac012a32bb6973ab579f7fc73343c197a3a54010e228441de395c24
ripemd-160 516de0e332900b69ca9f8fc47f1b9cce98eca00e

21909855 as geometric shapes

Circle

Radius = n
Diameter 43819710
Circumference 137663679.01844
Area 1.5080956230302E+15

Sphere

Radius = n
Volume 4.4056208568969E+22
Surface area 6.0323824921209E+15
Circumference 137663679.01844

Square

Length = n
Perimeter 87639420
Area 480041746121025
Diagonal 30985214.090628

Cube

Length = n
Surface area 2880250476726150
Volume 1.0517645051458E+22
Space diagonal 37948982.046467

Equilateral Triangle

Length = n
Perimeter 65729565
Area 2.0786417350892E+14
Altitude 18974491.023233

Triangular Pyramid

Length = n
Surface area 2.0786417350892E+14
Volume 1.2395163563332E+21
Height 10328404.696876