20921789 (number)

20921789 is an odd 8-digits composite number following 20921788 and preceding 20921790. In scientific notation, it is written as 2.0921789 × 10^7. The sum of its digits is 38. It has a total of 4 prime factors and 16 positive divisors. There are 16558080 positive integers (up to 20921789) that are relatively prime to 20921789.

Interesting facts

Basic properties

Name

Name twenty million nine hundred twenty-one thousand seven hundred eighty-nine

Notation

Scientific notation 2.0921789 × 10^7
Engineering notation 2.0921789 × 10^6

Prime Factorization of 20921789

Prime Factorization 29 × 7 × 23 × 4481

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 20921789
Product of the distinct prime numbers

The prime factorization of 20921789 is 29 × 7 × 23 × 4481. Since it has a total of 4 prime factors.

Most popular turbo-numbers

3, 2, 68, 61, 41, 36, 8518, 1816, 14323, 5937, 507973, 696792, 25718, 4114270, 2817662, 401715, 950312038, 395261854, 4491528332, 4183431646

Basic calculations (n = 20921789)

Multiplication

n×y
n×2 41843578
n×3 62765367
n×4 83687156
n×5 104608945

Division

n÷y
n÷2 10460894.5
n÷3 6973929.6666667
n÷3 5230447.25
n÷5 4184357.8

Exponentiation

ny
n2 437721254960521
n3 9.1579117370992E+21
n4 1.9159989704421E+29
n5 4.0086126183808E+36

Nth Root

y√n
2√n 4574.034215001
3√n 275.54948644594
4√n 67.631606627383
5√n 29.115199050104

Divisors of 20921789

1, 7, 23, 29, 161, 203, 667, 4481, 4669, 31367, 103063, 129949, 721441, 909643, 2988827, 20921789

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 -20921788
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 20921789 can be divided by 16 positive divisors. The sum of these divisors (counting 20921789) is 1, the average is 0.0625.

Base conversion 20921789

Base System Value
2 Binary 1001111110011110110111101
3 Ternary 1110100221022002
4 Quaternary 1033303312331
5 Quinary 20323444124
6 Senary 2024232045
8 Octal 117636675
10 Decimal 20921789
12 Duodecimal 700b625
16 Hexadecimal 13f3dbd
20 Vigesimal 6af499
36 Base36 cgfct

Cryptographic Hash Functions

md5 64faf5e199e1a38b0fe2f84ce59cf96e
sha1 fe8d0353194496851deadf2d50a1b682716d39e8
sha256 933d164cb3fd00b98fe11ed5e7f060beef094089afe7e43c06df15dfc048648f
sha512 ef27405dd08b6bdaca1752cfb2cff25e642a0ffe422d8e73f97b3fadce461832e831b895add74c0b4720850e60b961690e5b4bd3248db45e544f2e80c55462a3
ripemd-160 42cb9d15ff95ebbe34b1cbc1df386d28256c87f5

20921789 as geometric shapes

Circle

Radius = n
Diameter 41843578
Circumference 131455477.24471
Area 1.3751418789041E+15

Sphere

Radius = n
Volume 3.836057098066E+22
Surface area 5.5005675156163E+15
Circumference 131455477.24471

Square

Length = n
Perimeter 83687156
Area 437721254960521
Diagonal 29587877.752908

Cube

Length = n
Surface area 2626327529763126
Volume 9.1579117370992E+21
Space diagonal 36237601.533236

Equilateral Triangle

Length = n
Perimeter 62765367
Area 1.8953886328611E+14
Altitude 18118800.766618

Triangular Pyramid

Length = n
Surface area 1.8953886328611E+14
Volume 1.0792702484685E+21
Height 9862625.9176361