81307130 (number)

81307130 is an even 8-digits composite number following 81307129 and preceding 81307131. In scientific notation, it is written as 8.1307130 × 10^7. The sum of its digits is 23. It has a total of 4 prime factors and 16 positive divisors. There are 31643712 positive integers (up to 81307130) that are relatively prime to 81307130.

Interesting facts

Basic properties

Name

Name eighty-one million three hundred seven thousand one hundred thirty

Notation

Scientific notation 8.1307130 × 10^7
Engineering notation 8.1307130 × 10^6

Prime Factorization of 81307130

Prime Factorization 2 × 5 × 37 × 219749

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 81307130
Product of the distinct prime numbers

The prime factorization of 81307130 is 2 × 5 × 37 × 219749. Since it has a total of 4 prime factors.

Most popular turbo-numbers

9, 10, 83, 67, 103, 166, 1760, 1942, 57927, 62604, 639386, 76184, 6027712, 2054363, 45548267, 25700671, 663205727, 149837486, 9960415530, 3133669412

Basic calculations (n = 81307130)

Multiplication

n×y
n×2 162614260
n×3 243921390
n×4 325228520
n×5 406535650

Division

n÷y
n÷2 40653565
n÷3 27102376.666667
n÷3 20326782.5
n÷5 16261426

Exponentiation

ny
n2 6610849388836900
n3 5.3750919066858E+23
n4 4.3703329641885E+31
n5 3.5533923046256E+39

Nth Root

y√n
2√n 9017.0466340149
3√n 433.2210432255
4√n 94.95813095262
5√n 38.196689674042

Divisors of 81307130

1, 2, 5, 10, 37, 74, 185, 370, 219749, 439498, 1098745, 2197490, 8130713, 16261426, 40653565, 81307130

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 -81307129
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 81307130 can be divided by 16 positive divisors. The sum of these divisors (counting 81307130) is 1, the average is 0.0625.

Base conversion 81307130

Base System Value
2 Binary 100110110001010010111111010
3 Ternary 12122222211102012
4 Quaternary 10312022113322
5 Quinary 131303312010
6 Senary 12022405522
8 Octal 466122772
10 Decimal 81307130
12 Duodecimal 232908a2
16 Hexadecimal 4d8a5fa
20 Vigesimal 15837ga
36 Base36 1ceoze

Cryptographic Hash Functions

md5 1a7602f67195631d8922d64d9e810b07
sha1 841d1a3c6f79646e6adcab4a6f142d2eeefc751a
sha256 816f16f184425936ca33aef175a37d8d34c8dc6657ee60e88bbbee007daa07c9
sha512 bf54938b673102a328cc86266a5cde18041173553c06c1250eb4627b4a74fc4320c97b3d19617c3b7fa5f734853114da6bccb3402b22af0e263ec102dfa1e54f
ripemd-160 2d9cf181ad6fc51cdb5c3066824f8609c0750238

81307130 as geometric shapes

Circle

Radius = n
Diameter 162614260
Circumference 510867764.58494
Area 2.0768595873959E+16

Sphere

Radius = n
Volume 2.2515132328552E+24
Surface area 8.3074383495834E+16
Circumference 510867764.58494

Square

Length = n
Perimeter 325228520
Area 6610849388836900
Diagonal 114985645.96363

Cube

Length = n
Surface area 39665096333021400
Volume 5.3750919066858E+23
Space diagonal 140828080.17761

Equilateral Triangle

Length = n
Perimeter 243921390
Area 2.8625817556628E+15
Altitude 70414040.088804

Triangular Pyramid

Length = n
Surface area 2.8625817556628E+15
Volume 6.3346065611975E+22
Height 38328548.654544