20805213 (number)

20805213 is an odd 8-digits composite number following 20805212 and preceding 20805214. In scientific notation, it is written as 2.0805213 × 10^7. The sum of its digits is 21. It has a total of 4 prime factors and 16 positive divisors. There are 11639040 positive integers (up to 20805213) that are relatively prime to 20805213.

Interesting facts

Basic properties

Name

Name twenty million eight hundred five thousand two hundred thirteen

Notation

Scientific notation 2.0805213 × 10^7
Engineering notation 2.0805213 × 10^6

Prime Factorization of 20805213

Prime Factorization 3 × 11 × 13 × 48497

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 20805213
Product of the distinct prime numbers

The prime factorization of 20805213 is 3 × 11 × 13 × 48497. Since it has a total of 4 prime factors.

Most popular turbo-numbers

6, 9, 48, 45, 127, 387, 5923, 2533, 16591, 89406, 833570, 24491, 8781495, 4196977, 88163018, 72227565, 386695688, 378846280, 3741961957, 3795607615

Basic calculations (n = 20805213)

Multiplication

n×y
n×2 41610426
n×3 62415639
n×4 83220852
n×5 104026065

Division

n÷y
n÷2 10402606.5
n÷3 6935071
n÷3 5201303.25
n÷5 4161042.6

Exponentiation

ny
n2 432856887975369
n3 9.0056797528447E+21
n4 1.8736508546772E+29
n5 3.8981705119191E+36

Nth Root

y√n
2√n 4561.273177524
3√n 275.0367466047
4√n 67.537198472575
5√n 29.082680572212

Divisors of 20805213

1, 3, 11, 13, 33, 39, 143, 429, 48497, 145491, 533467, 630461, 1600401, 1891383, 6935071, 20805213

16 divisors

τ Total Divisors 16
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -20805212
Sum of the proper positive divisors of n
A Arithmetic Mean 0.0625
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 16
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 20805213 can be divided by 16 positive divisors. The sum of these divisors (counting 20805213) is 1, the average is 0.0625.

Base conversion 20805213

Base System Value
2 Binary 1001111010111011001011101
3 Ternary 1110011000101110
4 Quaternary 1033113121131
5 Quinary 20311231323
6 Senary 2021532233
8 Octal 117273135
10 Decimal 20805213
12 Duodecimal 6b74079
16 Hexadecimal 13d765d
20 Vigesimal 6a0d0d
36 Base36 cdxel

Cryptographic Hash Functions

md5 a1736ad0604f521a1867ee814a6b42cc
sha1 879003fe58dedb2c505e914b0786c2e4d6d2861a
sha256 22b7607dc53d43f09b4e469435c793f95e4f695ee9506451b11863bce19fa7ad
sha512 d471aba2fdccb57526f148c16a59e5fc5465f9a01029db4af9cc2971f8ace9a59c527dd9f666ce80ec764cfef8ef7d72ca4de49d210aaf3a038791e48626462f
ripemd-160 0d647ac2c825b931dd6591f151d054031ee20bf9

20805213 as geometric shapes

Circle

Radius = n
Diameter 41610426
Circumference 130723008.63434
Area 1.3598600193192E+15

Sphere

Radius = n
Volume 3.7722903136159E+22
Surface area 5.4394400772766E+15
Circumference 130723008.63434

Square

Length = n
Perimeter 83220852
Area 432856887975369
Diagonal 29423014.392661

Cube

Length = n
Surface area 2597141327852214
Volume 9.0056797528447E+21
Space diagonal 36035685.978293

Equilateral Triangle

Length = n
Perimeter 62415639
Area 1.8743253059487E+14
Altitude 18017842.989146

Triangular Pyramid

Length = n
Surface area 1.8743253059487E+14
Volume 1.0613295370718E+21
Height 9807671.4642203