12805989 is an odd 8-digits composite number following 12805988
and preceding 12805990 . In scientific notation, it is written as 1.2805989 × 10^7.
The sum of its digits is 42. It has a total of 3 prime factors and 8 positive divisors.
There are 7317696 positive integers (up to 12805989) that are relatively prime to 12805989.
12805989 has 8 divisors, whose sum is 19513920
The reverse of 12805989 is 98950821
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 42
Digital Root 6
Name
twelve million eight hundred five thousand nine hundred eighty-nine
Scientific notation
1.2805989 × 10^7
Engineering notation
1.2805989 × 10^6
Prime Factorization
7 × 3 × 609809
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
12805989
Product of the distinct prime numbers
The prime factorization of 12805989 is 7 × 3 × 609809.
Since it has a total of 3 prime factors.
10 , 2 , 6 , 17 , 2 , 822 , 874 , 8327 , 83656 , 31173 , 857040 , 767596 , 9524426 , 6433580 , 24576577 , 97014533 , 508644896 , 590747737 , 7449273868 , 5664361037
n×2
25611978
n×3
38417967
n×4
51223956
n×5
64029945
n÷2
6402994.5
n÷3
4268663
n÷3
3201497.25
n÷5
2561197.8
n2
163993354268121
n3
2.1000970908307E+21
n4
2.6893820244109E+28
n5
3.4440196621404E+35
2 √n
3578.5456543127
3 √n
233.95789658144
4 √n
59.820946618326
5 √n
26.392627294922
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-12805988
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 12805989 can be divided by 8 positive divisors.
The sum of these divisors (counting 12805989) is 1, the average is 0.125.
Base
System
Value
2
Binary
110000110110011101100101
3
Ternary
220002121111220
4
Quaternary
300312131211
5
Quinary
11234242424
6
Senary
1134250553
8
Octal
60663545
10
Decimal
12805989
12
Duodecimal
4356a59
16
Hexadecimal
c36765
20
Vigesimal
400ej9
36
Base36
7mh5x
md5
44be994f52e8c7e5f0171f3d8b7f285f
sha1
b82a3ed3f50d74780e94e8a86c6cb016426bf989
sha256
38ed93996e06dd7100ec43684f2099f80f85169e227e47e34443e278fe29df93
sha512
75a6627faba1e31c7939be1ef614b664220e5e6c2290d9a4052db3f2c32aa28b03b39b1b0739d450fa99356bd9a7e7117f8ca832d5f2ecdb5d5089612010c50d
ripemd-160
c4b73ef1e5056c47f4006ad80f186fd61f02ae8c
Diameter
25611978
Circumference
80462401.928703
Area
5.1520031700628E+14
Volume
8.7968661231719E+21
Surface area
2.0608012680251E+15
Circumference
80462401.928703
Perimeter
51223956
Area
163993354268121
Diagonal
18110403.323401
Surface area
983960125608726
Volume
2.1000970908307E+21
Space diagonal
22180623.589168
Perimeter
38417967
Area
71011205424007
Altitude
11090311.794584
Surface area
71011205424007
Volume
2.4749881567942E+20
Height
6036801.1078002