81578097 is an odd 8-digits composite number following 81578096
and preceding 81578098 . In scientific notation, it is written as 8.1578097 × 10^7.
The sum of its digits is 45. It has a total of 4 prime factors and 10 positive divisors.
There are 54385344 positive integers (up to 81578097) that are relatively prime to 81578097.
81578097 has 10 divisors, whose sum is 121863698
The reverse of 81578097 is 79087518
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 45
Digital Root 9
Name
eighty-one million five hundred seventy-eight thousand ninety-seven
Scientific notation
8.1578097 × 10^7
Engineering notation
8.1578097 × 10^6
Prime Factorization
9 × 3 × 3 × 1007137
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
27192699
Product of the distinct prime numbers
The prime factorization of 81578097 is 9 × 3 × 3 × 1007137.
Since it has a total of 4 prime factors.
1 , 9 , 79 , 11 , 734 , 628 , 9986 , 7296 , 79635 , 81244 , 806618 , 6120 , 5381179 , 8225520 , 67813529 , 98427050 , 828984312 , 614491909 , 4354717646 , 7612296505
n×2
163156194
n×3
244734291
n×4
326312388
n×5
407890485
n÷2
40789048.5
n÷3
27192699
n÷3
20394524.25
n÷5
16315619.4
n2
6654985910141409
n3
5.4290108611115E+23
n4
4.4288837464181E+31
n5
3.6129990786702E+39
2 √n
9032.0593997161
3 √n
433.70176548958
4 √n
95.037147472534
5 √n
38.222114929537
10 divisors
τ
Total Divisors
10
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-81578096
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.1
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
10
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 81578097 can be divided by 10 positive divisors.
The sum of these divisors (counting 81578097) is 1, the average is 0.1.
Base
System
Value
2
Binary
100110111001100100001110001
3
Ternary
12200111121010000
4
Quaternary
10313030201301
5
Quinary
131340444342
6
Senary
12032300213
8
Octal
467144161
10
Decimal
81578097
12
Duodecimal
233a1669
16
Hexadecimal
4dcc871
20
Vigesimal
159h54h
36
Base36
1cki29
md5
a76f7b614c01a59fda977a4852cc552c
sha1
d26fa728d38775e6ef9292f36b24574bca493bbb
sha256
e1041437c7e849253913c01de3b4e7d62f291319f219469cf767218bfd0612c3
sha512
88bebce2109716a5d05f7226675969912f2f86373a5462b7295729ebe55b621fc0ff97f64832f5be927965df8c7662995e5f1f08b55d87b20a82bf6aeade439e
ripemd-160
5aca89f26a1aca755323cc50249b7bdf4b5352c1
Diameter
163156194
Circumference
512570300.45807
Area
2.0907254845044E+16
Volume
2.2740987516703E+24
Surface area
8.3629019380175E+16
Circumference
512570300.45807
Perimeter
326312388
Area
6654985910141409
Diagonal
115368851.16999
Surface area
39929915460848454
Volume
5.4290108611115E+23
Space diagonal
141297408.78878
Perimeter
244734291
Area
2.881693430005E+15
Altitude
70648704.394391
Surface area
2.881693430005E+15
Volume
6.3981506583789E+22
Height
38456283.723329