20804905 (number)

20804905 is an odd 8-digits composite number following 20804904 and preceding 20804906. In scientific notation, it is written as 2.0804905 × 10^7. The sum of its digits is 28. It has a total of 5 prime factors and 32 positive divisors. There are 13970880 positive integers (up to 20804905) that are relatively prime to 20804905.

Interesting facts

Basic properties

Name

Name twenty million eight hundred four thousand nine hundred five

Notation

Scientific notation 2.0804905 × 10^7
Engineering notation 2.0804905 × 10^6

Prime Factorization of 20804905

Prime Factorization 19 × 5 × 43 × 11 × 463

Composite number
ω Distinct Factors 5
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 20804905
Product of the distinct prime numbers

The prime factorization of 20804905 is 19 × 5 × 43 × 11 × 463. Since it has a total of 5 prime factors.

Most popular turbo-numbers

6, 2, 49, 99, 185, 379, 1345, 85, 70203, 27169, 998860, 334974, 1389707, 7980014, 40989506, 74377829, 647741997, 831636127, 9220235394, 333974524

Basic calculations (n = 20804905)

Multiplication

n×y
n×2 41609810
n×3 62414715
n×4 83219620
n×5 104024525

Division

n÷y
n÷2 10402452.5
n÷3 6934968.3333333
n÷3 5201226.25
n÷5 4160981

Exponentiation

ny
n2 432844072059025
n3 9.0052797990012E+21
n4 1.8735399071664E+29
n5 3.8978819782305E+36

Nth Root

y√n
2√n 4561.2394148959
3√n 275.03538938499
4√n 67.536948516319
5√n 29.082594463806

Divisors of 20804905

1, 5, 11, 19, 43, 55, 95, 209, 215, 463, 473, 817, 1045, 2315, 2365, 4085, 5093, 8797, 8987, 19909, 25465, 43985, 44935, 96767, 99545, 218999, 378271, 483835, 1094995, 1891355, 4160981, 20804905

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 -20804904
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 20804905 can be divided by 32 positive divisors. The sum of these divisors (counting 20804905) is 1, the average is 0.03125.

Base conversion 20804905

Base System Value
2 Binary 1001111010111010100101001
3 Ternary 1110010222222001
4 Quaternary 1033113110221
5 Quinary 20311224110
6 Senary 2021531001
8 Octal 117272451
10 Decimal 20804905
12 Duodecimal 6b73a61
16 Hexadecimal 13d7529
20 Vigesimal 6a0c55
36 Base36 cdx61

Cryptographic Hash Functions

md5 86a9359b4730928ee3a93472b6f022dd
sha1 1d4ecf0132e3ce4c7344923203b1d85d546cd46b
sha256 0794169fde207a04bf4d36dc3bb47d1db623d915507cebd0b990dfe47d44ec58
sha512 479245026597c4aecee6c204d085633993d69b152421a52850cf2ff5be9072c21c0433f613a4480fa7fc842fb427f2b39bf6a352262bb6d662ad8a3e273f4d7e
ripemd-160 592c19c5b971b975261e0677f730dc85e28ea337

20804905 as geometric shapes

Circle

Radius = n
Diameter 41609810
Circumference 130721073.41327
Area 1.3598197569305E+15

Sphere

Radius = n
Volume 3.7721227813417E+22
Surface area 5.4392790277221E+15
Circumference 130721073.41327

Square

Length = n
Perimeter 83219620
Area 432844072059025
Diagonal 29422578.814884

Cube

Length = n
Surface area 2597064432354150
Volume 9.0052797990012E+21
Space diagonal 36035152.506644

Equilateral Triangle

Length = n
Perimeter 62414715
Area 1.8742698114031E+14
Altitude 18017576.253322

Triangular Pyramid

Length = n
Surface area 1.8742698114031E+14
Volume 1.0612824020593E+21
Height 9807526.2716279