20921838 (number)

20921838 is an even 8-digits composite number following 20921837 and preceding 20921839. In scientific notation, it is written as 2.0921838 × 10^7. The sum of its digits is 33. It has a total of 4 prime factors and 16 positive divisors. There are 5784480 positive integers (up to 20921838) that are relatively prime to 20921838.

Interesting facts

Basic properties

Name

Name twenty million nine hundred twenty-one thousand eight hundred thirty-eight

Notation

Scientific notation 2.0921838 × 10^7
Engineering notation 2.0921838 × 10^6

Prime Factorization of 20921838

Prime Factorization 2 × 21 × 31 × 16069

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 20921838
Product of the distinct prime numbers

The prime factorization of 20921838 is 2 × 21 × 31 × 16069. Since it has a total of 4 prime factors.

Most popular turbo-numbers

8, 4, 69, 16, 750, 240, 2328, 9103, 73828, 86892, 501021, 936511, 5522381, 6157196, 80320902, 76551660, 750867911, 282206412, 7883415646, 5247891058

Basic calculations (n = 20921838)

Multiplication

n×y
n×2 41843676
n×3 62765514
n×4 83687352
n×5 104609190

Division

n÷y
n÷2 10460919
n÷3 6973946
n÷3 5230459.5
n÷5 4184367.6

Exponentiation

ny
n2 437723305298244
n3 9.1579760822744E+21
n4 1.9160169200122E+29
n5 4.0086595605754E+36

Nth Root

y√n
2√n 4574.0395713199
3√n 275.54970156321
4√n 67.631646226599
5√n 29.115212687976

Divisors of 20921838

1, 2, 21, 31, 42, 62, 651, 1302, 16069, 32138, 337449, 498139, 674898, 996278, 10460919, 20921838

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 -20921837
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 20921838 can be divided by 16 positive divisors. The sum of these divisors (counting 20921838) is 1, the average is 0.0625.

Base conversion 20921838

Base System Value
2 Binary 1001111110011110111101110
3 Ternary 1110100221100220
4 Quaternary 1033303313232
5 Quinary 20323444323
6 Senary 2024232210
8 Octal 117636756
10 Decimal 20921838
12 Duodecimal 700b666
16 Hexadecimal 13f3dee
20 Vigesimal 6af4bi
36 Base36 cgfe6

Cryptographic Hash Functions

md5 e15d54e5263cc8461d99b5669870fedf
sha1 c293b79e4a1075eb7ea3584989bf969836151ba8
sha256 34189aa5e6ab9dab227ee0a4aa57921508b38c5c21918386c07667d1a1fcb043
sha512 9426b406658d13408aa906637b359384d85e4dbaef3de83e89fb705971f4eae52eb1afbf63974196ad9a7145aec4ea38ecd41e5df861a3e7fcc42268f9d14d8d
ripemd-160 80bb95bce9d3b0919aa94f1d88ea1b58e10c33cf

20921838 as geometric shapes

Circle

Radius = n
Diameter 41843676
Circumference 131455785.12079
Area 1.37514832023E+15

Sphere

Radius = n
Volume 3.8360840509099E+22
Surface area 5.50059328092E+15
Circumference 131455785.12079

Square

Length = n
Perimeter 83687352
Area 437723305298244
Diagonal 29587947.049373

Cube

Length = n
Surface area 2626339831789464
Volume 9.1579760822744E+21
Space diagonal 36237686.403725

Equilateral Triangle

Length = n
Perimeter 62765514
Area 1.8953975110839E+14
Altitude 18118843.201863

Triangular Pyramid

Length = n
Surface area 1.8953975110839E+14
Volume 1.0792778316201E+21
Height 9862649.0164576