20403981 (number)

20403981 is an odd 8-digits composite number following 20403980 and preceding 20403982. In scientific notation, it is written as 2.0403981 × 10^7. The sum of its digits is 27. It has a total of 5 prime factors and 16 positive divisors. There are 12550464 positive integers (up to 20403981) that are relatively prime to 20403981.

Interesting facts

Basic properties

Name

Name twenty million four hundred three thousand nine hundred eighty-one

Notation

Scientific notation 2.0403981 × 10^7
Engineering notation 2.0403981 × 10^6

Prime Factorization of 20403981

Prime Factorization 9 × 9 × 9 × 13 × 2153

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 251901
Product of the distinct prime numbers

The prime factorization of 20403981 is 9 × 9 × 9 × 13 × 2153. Since it has a total of 5 prime factors.

Most popular turbo-numbers

8, 7, 87, 45, 636, 255, 6903, 7679, 74866, 37998, 244487, 14364, 2005261, 1625690, 33630506, 61667610, 983884637, 790428705, 3588826294, 2903877821

Basic calculations (n = 20403981)

Multiplication

n×y
n×2 40807962
n×3 61211943
n×4 81615924
n×5 102019905

Division

n÷y
n÷2 10201990.5
n÷3 6801327
n÷3 5100995.25
n÷5 4080796.2

Exponentiation

ny
n2 416322440648361
n3 8.4946351688628E+21
n4 1.7332437458741E+29
n5 3.5365072459184E+36

Nth Root

y√n
2√n 4517.0765988635
3√n 273.25721441119
4√n 67.209200254604
5√n 28.969632245151

Divisors of 20403981

1, 9, 13, 81, 117, 729, 1053, 2153, 9477, 19377, 27989, 174393, 251901, 1569537, 2267109, 20403981

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 -20403980
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 20403981 can be divided by 16 positive divisors. The sum of these divisors (counting 20403981) is 1, the average is 0.0625.

Base conversion 20403981

Base System Value
2 Binary 1001101110101011100001101
3 Ternary 1102101122000000
4 Quaternary 1031311130031
5 Quinary 20210411411
6 Senary 2005154513
8 Octal 115653415
10 Decimal 20403981
12 Duodecimal 69bba39
16 Hexadecimal 137570d
20 Vigesimal 67a9j1
36 Base36 c5bt9

Cryptographic Hash Functions

md5 691c550740e86e47ec5da306e36ddd86
sha1 5511d2106f8dd5a470ef163fe2f5c85de3ee2949
sha256 28d500bb5fb576b2a21690d53c44b9c372dbebbf5ce385f8153919365604a552
sha512 ee6b614ff8187d41e7c4e2e7b03c52790bf87a75a65f18050af80fb1f4826cdb0eadc550f125450dae4edf44434f4edd3253468f10c2cf5e30aacc66bbfe10b5
ripemd-160 dc044782e0ec636cd09134a8739f8191b705a084

20403981 as geometric shapes

Circle

Radius = n
Diameter 40807962
Circumference 128201993.62717
Area 1.3079155210655E+15

Sphere

Radius = n
Volume 3.5582244588566E+22
Surface area 5.2316620842619E+15
Circumference 128201993.62717

Square

Length = n
Perimeter 81615924
Area 416322440648361
Diagonal 28855586.656603

Cube

Length = n
Surface area 2497934643890166
Volume 8.4946351688628E+21
Space diagonal 35340731.76867

Equilateral Triangle

Length = n
Perimeter 61211943
Area 1.8027290488351E+14
Altitude 17670365.884335

Triangular Pyramid

Length = n
Surface area 1.8027290488351E+14
Volume 1.0011023552681E+21
Height 9618528.8855343