81297710 (number)

81297710 is an even 8-digits composite number following 81297709 and preceding 81297711. In scientific notation, it is written as 8.1297710 × 10^7. The sum of its digits is 35. It has a total of 4 prime factors and 16 positive divisors. There are 30017568 positive integers (up to 81297710) that are relatively prime to 81297710.

Interesting facts

Basic properties

Name

Name eighty-one million two hundred ninety-seven thousand seven hundred ten

Notation

Scientific notation 8.1297710 × 10^7
Engineering notation 8.1297710 × 10^6

Prime Factorization of 81297710

Prime Factorization 2 × 13 × 5 × 625367

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 81297710
Product of the distinct prime numbers

The prime factorization of 81297710 is 2 × 13 × 5 × 625367. Since it has a total of 4 prime factors.

Most popular turbo-numbers

9, 5, 3, 37, 678, 811, 6474, 484, 60711, 79492, 729165, 546604, 2901629, 2110876, 6763050, 83738876, 848052643, 707295445, 6513157827, 8558799187

Basic calculations (n = 81297710)

Multiplication

n×y
n×2 162595420
n×3 243893130
n×4 325190840
n×5 406488550

Division

n÷y
n÷2 40648855
n÷3 27099236.666667
n÷3 20324427.5
n÷5 16259542

Exponentiation

ny
n2 6609317651244100
n3 5.3732238970872E+23
n4 4.3683079815047E+31
n5 3.5513343547105E+39

Nth Root

y√n
2√n 9016.5242749077
3√n 433.20431201616
4√n 94.95538044212
5√n 38.195804562262

Divisors of 81297710

1, 2, 5, 10, 13, 26, 65, 130, 625367, 1250734, 3126835, 6253670, 8129771, 16259542, 40648855, 81297710

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 -81297709
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 81297710 can be divided by 16 positive divisors. The sum of these divisors (counting 81297710) is 1, the average is 0.0625.

Base conversion 81297710

Base System Value
2 Binary 100110110001000000100101110
3 Ternary 12122222100111022
4 Quaternary 10312020010232
5 Quinary 131303011320
6 Senary 12022254142
8 Octal 466100456
10 Decimal 81297710
12 Duodecimal 23287352
16 Hexadecimal 4d8812e
20 Vigesimal 158245a
36 Base36 1cehpq

Cryptographic Hash Functions

md5 9d9f1af3553cf34715ab856374208814
sha1 2e55f8d194a32daaa4a90de29ab13d6bc722eca3
sha256 6b415e69a715d74b035a9b05b8aa3192cecc655ad362be46c950a3c23b3da5a0
sha512 6e957e16f04f66a53fbccd11b42be05fa0a9f7d694f8cf08b0e7c8483c2f90da288fb94af9f37294aa0746d93e24d668d5103618cd1e0f4630e12892a8018a98
ripemd-160 fdfffecfc81a79f6a9eaf52fd9190c2942490331

81297710 as geometric shapes

Circle

Radius = n
Diameter 162595420
Circumference 510808576.97935
Area 2.076378377839E+16

Sphere

Radius = n
Volume 2.2507307628243E+24
Surface area 8.3055135113559E+16
Circumference 510808576.97935

Square

Length = n
Perimeter 325190840
Area 6609317651244100
Diagonal 114972324.07187

Cube

Length = n
Surface area 39655905907464600
Volume 5.3732238970872E+23
Space diagonal 140811764.259

Equilateral Triangle

Length = n
Perimeter 243893130
Area 2.8619184938291E+15
Altitude 70405882.1295

Triangular Pyramid

Length = n
Surface area 2.8619184938291E+15
Volume 6.3324050907733E+22
Height 38324108.023958