81659097 is an odd 8-digits composite number following 81659096
and preceding 81659098 . In scientific notation, it is written as 8.1659097 × 10^7.
The sum of its digits is 45. It has a total of 5 prime factors and 20 positive divisors.
There are 50251104 positive integers (up to 81659097) that are relatively prime to 81659097.
81659097 has 20 divisors, whose sum is 131369700
The reverse of 81659097 is 79095618
Previous prime number is 13
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 45
Digital Root 9
Name
eighty-one million six hundred fifty-nine thousand ninety-seven
Scientific notation
8.1659097 × 10^7
Engineering notation
8.1659097 × 10^6
Prime Factorization
3 × 3 × 9 × 13 × 77549
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
27219699
Product of the distinct prime numbers
The prime factorization of 81659097 is 3 × 3 × 9 × 13 × 77549.
Since it has a total of 5 prime factors.
7 , 6 , 78 , 25 , 151 , 261 , 7257 , 4148 , 10854 , 82206 , 44601 , 406943 , 885286 , 8075089 , 87513103 , 15116129 , 626224232 , 723668857 , 213197917 , 9589857181
n×2
163318194
n×3
244977291
n×4
326636388
n×5
408295485
n÷2
40829548.5
n÷3
27219699
n÷3
20414774.25
n÷5
16331819.4
n2
6668208122855409
n3
5.4451985392044E+23
n4
4.4464999569715E+31
n5
3.6309717129683E+39
2 √n
9036.5423144032
3 √n
433.84526079751
4 √n
95.060729612197
5 √n
38.229702168108
1 , 3 , 9 , 13 , 27 , 39 , 81 , 117 , 351 , 1053 , 77549 , 232647 , 697941 , 1008137 , 2093823 , 3024411 , 6281469 , 9073233 , 27219699 , 81659097
20 divisors
τ
Total Divisors
20
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-81659096
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.05
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
20
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 81659097 can be divided by 20 positive divisors.
The sum of these divisors (counting 81659097) is 1, the average is 0.05.
Base
System
Value
2
Binary
100110111100000010011011001
3
Ternary
12200122201020000
4
Quaternary
10313200103121
5
Quinary
131401042342
6
Senary
12034123213
8
Octal
467402331
10
Decimal
81659097
12
Duodecimal
23420509
16
Hexadecimal
4de04d9
20
Vigesimal
15a77eh
36
Base36
1cm8k9
md5
6dd95fd349f321df947285f9b1c4dae8
sha1
9b47875a2aa1845534368eb8871f54022a96c383
sha256
4d706a6b643ee9e33753f37fdcdfec6eb9c11f715639dc02e68d5fa2663f0c57
sha512
e9b44774e9bc253c53fd9fe49497666ffc8a0085644dad56706b6f3898c2c39850812db9cd23b4fd26ffdfd0ec36596fc2fce012d1608a91b176c8edecccbd3b
ripemd-160
29780228bdbb2d71c6b9bd5013449c85b58e7fb0
Diameter
163318194
Circumference
513079238.46795
Area
2.094879365137E+16
Volume
2.2808794304136E+24
Surface area
8.3795174605481E+16
Circumference
513079238.46795
Perimeter
326636388
Area
6668208122855409
Diagonal
115483402.46854
Surface area
40009248737132454
Volume
5.4451985392044E+23
Space diagonal
141437704.9042
Perimeter
244977291
Area
2.8874188160573E+15
Altitude
70718852.452098
Surface area
2.8874188160573E+15
Volume
6.4172280199642E+22
Height
38494467.489513