81236738 (number)

81236738 is an even 8-digits composite number following 81236737 and preceding 81236739. In scientific notation, it is written as 8.1236738 × 10^7. The sum of its digits is 38. It has a total of 4 prime factors and 12 positive divisors. There are 36925680 positive integers (up to 81236738) that are relatively prime to 81236738.

Interesting facts

Basic properties

Name

Name eighty-one million two hundred thirty-six thousand seven hundred thirty-eight

Notation

Scientific notation 8.1236738 × 10^7
Engineering notation 8.1236738 × 10^6

Prime Factorization of 81236738

Prime Factorization 2 × 11 × 11 × 335689

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 7385158
Product of the distinct prime numbers

The prime factorization of 81236738 is 2 × 11 × 11 × 335689. Since it has a total of 4 prime factors.

Most popular turbo-numbers

4, 7, 75, 18, 945, 105, 2791, 3599, 27218, 49367, 35509, 631133, 6289909, 8528987, 26561098, 77940564, 566481148, 179751387, 6072755909, 8533668814

Basic calculations (n = 81236738)

Multiplication

n×y
n×2 162473476
n×3 243710214
n×4 324946952
n×5 406183690

Division

n÷y
n÷2 40618369
n÷3 27078912.666667
n÷3 20309184.5
n÷5 16247347.6

Exponentiation

ny
n2 6599407600880644
n3 5.3611434622795E+23
n4 4.3552180682561E+31
n5 3.5380370914379E+39

Nth Root

y√n
2√n 9013.1425152385
3√n 433.09598613072
4√n 94.937571673382
5√n 38.190073592575

Divisors of 81236738

1, 2, 11, 22, 121, 242, 335689, 671378, 3692579, 7385158, 40618369, 81236738

12 divisors

τ Total Divisors 12
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -81236737
Sum of the proper positive divisors of n
A Arithmetic Mean 0.083333333333333
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 12
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81236738 can be divided by 12 positive divisors. The sum of these divisors (counting 81236738) is 1, the average is 0.083333333333333.

Base conversion 81236738

Base System Value
2 Binary 100110101111001001100000010
3 Ternary 12122212020212002
4 Quaternary 10311321030002
5 Quinary 131244033423
6 Senary 12021104002
8 Octal 465711402
10 Decimal 81236738
12 Duodecimal 23258002
16 Hexadecimal 4d79302
20 Vigesimal 157ebgi
36 Base36 1cd6o2

Cryptographic Hash Functions

md5 b4dfcc9bd0a52a65981755e8b0e7650e
sha1 f7bcba806daa54f7a3dea922fb6d5d634479cd87
sha256 0c5a335244ba5568953faa82bec5822008bbe90e050cc9ad8153f2d4176baaf7
sha512 fe530b46a3a78e335cd33625db83dd08169f7eb3495ba24da9a5b57268f548738c01546a56ceff91595c6eea35f731cf6b34ad2cae1eee186c4eab91e0ec261e
ripemd-160 9e2230e8bb15b6e9cc47c51874961f9d7e12871f

81236738 as geometric shapes

Circle

Radius = n
Diameter 162473476
Circumference 510425478.6048
Area 2.0732650436971E+16

Sphere

Radius = n
Volume 2.2456705221251E+24
Surface area 8.2930601747885E+16
Circumference 510425478.6048

Square

Length = n
Perimeter 324946952
Area 6599407600880644
Diagonal 114886096.64255

Cube

Length = n
Surface area 39596445605283864
Volume 5.3611434622795E+23
Space diagonal 140706157.65716

Equilateral Triangle

Length = n
Perimeter 243710214
Area 2.8576273161454E+15
Altitude 70353078.828581

Triangular Pyramid

Length = n
Surface area 2.8576273161454E+15
Volume 6.3181681618196E+22
Height 38295365.547517