81090103 is an odd 8-digits composite number following 81090102
and preceding 81090104 . In scientific notation, it is written as 8.1090103 × 10^7.
The sum of its digits is 22. It has a total of 2 prime factors and 4 positive divisors.
There are 80063568 positive integers (up to 81090103) that are relatively prime to 81090103.
81090103 has 4 divisors, whose sum is 82116640
The reverse of 81090103 is 30109018
Previous prime number is 79
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 22
Digital Root 4
Name
eighty-one million ninety thousand one hundred three
Scientific notation
8.1090103 × 10^7
Engineering notation
8.1090103 × 10^6
Prime Factorization
79 × 1026457
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
81090103
Product of the distinct prime numbers
The prime factorization of 81090103 is 79 × 1026457.
Since it has a total of 2 prime factors.
10 , 10 , 63 , 44 , 213 , 235 , 2590 , 7454 , 98860 , 29944 , 670109 , 145318 , 8430878 , 7238399 , 54891223 , 12748403 , 993739477 , 709029951 , 5807412939 , 1226833368
n×2
162180206
n×3
243270309
n×4
324360412
n×5
405450515
n÷2
40545051.5
n÷3
27030034.333333
n÷3
20272525.75
n÷5
16218020.6
n2
6575604804550609
n3
5.332164708883E+23
n4
4.3238578545629E+31
n5
3.5062207878387E+39
2 √n
9005.0043309262
3 √n
432.83524499062
4 √n
94.894701279504
5 √n
38.17627675819
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-81090102
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 81090103 can be divided by 4 positive divisors.
The sum of these divisors (counting 81090103) is 1, the average is 0.25.
Base
System
Value
2
Binary
100110101010101011000110111
3
Ternary
12122120210201011
4
Quaternary
10311111120313
5
Quinary
131224340403
6
Senary
12014013051
8
Octal
465253067
10
Decimal
81090103
12
Duodecimal
231a7187
16
Hexadecimal
4d55637
20
Vigesimal
156g553
36
Base36
1ca1iv
md5
f251b9a6a75b8f2004b4a94d45462cec
sha1
41f0800b5cc486b7ca3f55d546c6bc6d506b7095
sha256
a4e5cc30e71a5b341f8e4f4b1d5ab2429ba03a675092c0b698ae545cc47d3e2a
sha512
310efb7c007a7d7b18477abbc85acaa2d082849511028bda30e55899ffef6371239ff9133ea704c199da16c505008b908788f805fc71b059b5a406abd709588c
ripemd-160
1e6a57401a7d8e9195e61fab5dea14690f30faed
Diameter
162180206
Circumference
509504143.72728
Area
2.0657871746886E+16
Volume
2.2335319302877E+24
Surface area
8.2631486987544E+16
Circumference
509504143.72728
Perimeter
324360412
Area
6575604804550609
Diagonal
114678723.43683
Surface area
39453628827303654
Volume
5.332164708883E+23
Space diagonal
140452178.38699
Perimeter
243270309
Area
2.8473204029939E+15
Altitude
70226089.193497
Surface area
2.8473204029939E+15
Volume
6.2840163734246E+22
Height
38226241.14561