81497310 is an even 8-digits composite number following 81497309
and preceding 81497311 . In scientific notation, it is written as 8.1497310 × 10^7.
The sum of its digits is 33. It has a total of 5 prime factors and 32 positive divisors.
There are 21144960 positive integers (up to 81497310) that are relatively prime to 81497310.
81497310 has 32 divisors, whose sum is 200882592
The reverse of 81497310 is 01379418
Previous prime number is 37
Is Prime? no
Number parity even
Number length 8
Sum of Digits 33
Digital Root 6
Name
eighty-one million four hundred ninety-seven thousand three hundred ten
Scientific notation
8.1497310 × 10^7
Engineering notation
8.1497310 × 10^6
Prime Factorization
2 × 3 × 5 × 37 × 73421
Composite number
ω
Distinct Factors
5
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
81497310
Product of the distinct prime numbers
The prime factorization of 81497310 is 2 × 3 × 5 × 37 × 73421.
Since it has a total of 5 prime factors.
5 , 7 , 79 , 87 , 1 , 967 , 8753 , 5334 , 6371 , 31698 , 56191 , 107203 , 4058380 , 4947496 , 82926213 , 49037520 , 930609819 , 887222214 , 2080883650 , 9109903592
n×2
162994620
n×3
244491930
n×4
325989240
n×5
407486550
n÷2
40748655
n÷3
27165770
n÷3
20374327.5
n÷5
16299462
n2
6641811537236100
n3
5.4128977381171E+23
n4
4.4113660496163E+31
n5
3.5951446646905E+39
2 √n
9027.5860560839
3 √n
433.55855287867
4 √n
95.01360984661
5 √n
38.21454163719
1 , 2 , 3 , 5 , 6 , 10 , 15 , 30 , 37 , 74 , 111 , 185 , 222 , 370 , 555 , 1110 , 73421 , 146842 , 220263 , 367105 , 440526 , 734210 , 1101315 , 2202630 , 2716577 , 5433154 , 8149731 , 13582885 , 16299462 , 27165770 , 40748655 , 81497310
32 divisors
τ
Total Divisors
32
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-81497309
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.03125
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
32
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 81497310 can be divided by 32 positive divisors.
The sum of these divisors (counting 81497310) is 1, the average is 0.03125.
Base
System
Value
2
Binary
100110110111000110011011110
3
Ternary
12200100111021220
4
Quaternary
10312320303132
5
Quinary
131330403220
6
Senary
12030434210
8
Octal
466706336
10
Decimal
81497310
12
Duodecimal
23362966
16
Hexadecimal
4db8cde
20
Vigesimal
159735a
36
Base36
1cirq6
md5
5034a44c0c48c058f47c48bec8fceb61
sha1
1675ab7cc35166d5f288738c8ff5a22af3a42b71
sha256
c1bc17d91d7c1ddbb4087799aee1adf2d6b8cc688ba5490029f16839f9e4c974
sha512
b12268a1ae0125ddff516c3fa4e883f559c3e6eb47fe7efefa6102c7bd89ab05470c14b58d604b484f6fc2b38d463b49e5553cf393ed8cff5f36049eb23fa818
ripemd-160
b2deb7f5e3191c921b3263b593fe97dbbd7f3eda
Diameter
162994620
Circumference
512062700.76666
Area
2.0865866331909E+16
Volume
2.2673493024935E+24
Surface area
8.3463465327635E+16
Circumference
512062700.76666
Perimeter
325989240
Area
6641811537236100
Diagonal
115254601.09892
Surface area
39850869223416600
Volume
5.4128977381171E+23
Space diagonal
141157481.60019
Perimeter
244491930
Area
2.8759887591975E+15
Altitude
70578740.800096
Surface area
2.8759887591975E+15
Volume
6.3791611608198E+22
Height
38418200.366308