20397791 (number)

20397791 is an odd 8-digits composite number following 20397790 and preceding 20397792. In scientific notation, it is written as 2.0397791 × 10^7. The sum of its digits is 38. It has a total of 2 prime factors and 4 positive divisors. There are 20325432 positive integers (up to 20397791) that are relatively prime to 20397791.

Interesting facts

Basic properties

Name

Name twenty million three hundred ninety-seven thousand seven hundred ninety-one

Notation

Scientific notation 2.0397791 × 10^7
Engineering notation 2.0397791 × 10^6

Prime Factorization of 20397791

Prime Factorization 283 × 72077

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 20397791
Product of the distinct prime numbers

The prime factorization of 20397791 is 283 × 72077. Since it has a total of 2 prime factors.

Most popular turbo-numbers

Basic calculations (n = 20397791)

Multiplication

n×y
n×2 40795582
n×3 61193373
n×4 81591164
n×5 101988955

Division

n÷y
n÷2 10198895.5
n÷3 6799263.6666667
n÷3 5099447.75
n÷5 4079558.2

Exponentiation

ny
n2 416069877679681
n3 8.4869064063057E+21
n4 1.7311414311238E+29
n5 3.5311461103505E+36

Nth Root

y√n
2√n 4516.3913692239
3√n 273.2295787383
4√n 67.204102324366
5√n 28.967874315773

Divisors of 20397791

4 divisors

τ Total Divisors 4
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -20397790
Sum of the proper positive divisors of n
A Arithmetic Mean 0.25
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 4
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 20397791 can be divided by 4 positive divisors. The sum of these divisors (counting 20397791) is 1, the average is 0.25.

Base conversion 20397791

Base System Value
2 Binary 1001101110011111011011111
3 Ternary 1102101022111202
4 Quaternary 1031303323133
5 Quinary 20210212131
6 Senary 2005110115
8 Octal 115637337
10 Decimal 20397791
12 Duodecimal 69b833b
16 Hexadecimal 1373edf
20 Vigesimal 679e9b
36 Base36 c571b

Cryptographic Hash Functions

md5 3ddcb25e7d583d5ef1c5dcbe5e5ca91a
sha1 4fbdbc6840efc7756f717c0ba4e2e73d2b9d5ba1
sha256 8d43071c626462f56cf4c897484a847746f65dffa83073a5dd3b83120010a8c7
sha512 b83667e90cd4e12aa3d042071842d2aa969768ca5e53fe48c5cd202f14ae66e27bf0d6447c3d3b8fae0c6b76b4d67ca21a63a1b09e74f56b61cc6b96ada0798b
ripemd-160 3a5c0a5614526af04e46685921166d57a34f527a

20397791 as geometric shapes

Circle

Radius = n
Diameter 40795582
Circumference 128163100.71012
Area 1.3071220710985E+15

Sphere

Radius = n
Volume 3.5549870423672E+22
Surface area 5.228488284394E+15
Circumference 128163100.71012

Square

Length = n
Perimeter 81591164
Area 416069877679681
Diagonal 28846832.674652

Cube

Length = n
Surface area 2496419266078086
Volume 8.4869064063057E+21
Space diagonal 35330010.374171

Equilateral Triangle

Length = n
Perimeter 61193373
Area 1.8016354191004E+14
Altitude 17665005.187086

Triangular Pyramid

Length = n
Surface area 1.8016354191004E+14
Volume 1.0001915118657E+21
Height 9615610.8915506