12388905 is an odd 8-digits composite number following 12388904
and preceding 12388906 . In scientific notation, it is written as 1.2388905 × 10^7.
The sum of its digits is 36. It has a total of 3 prime factors and 8 positive divisors.
There are 6607392 positive integers (up to 12388905) that are relatively prime to 12388905.
12388905 has 8 divisors, whose sum is 17619840
The reverse of 12388905 is 50988321
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 36
Digital Root 9
Name
twelve million three hundred eighty-eight thousand nine hundred five
Scientific notation
1.2388905 × 10^7
Engineering notation
1.2388905 × 10^6
Prime Factorization
15 × 3 × 275309
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
12388905
Product of the distinct prime numbers
The prime factorization of 12388905 is 15 × 3 × 275309.
Since it has a total of 3 prime factors.
3 , 4 , 18 , 54 , 219 , 766 , 6768 , 2398 , 43335 , 29007 , 776695 , 784289 , 2809186 , 8592698 , 21438789 , 39257753 , 209373514 , 509680252 , 9569284717 , 2974814826
n×2
24777810
n×3
37166715
n×4
49555620
n×5
61944525
n÷2
6194452.5
n÷3
4129635
n÷3
3097226.25
n÷5
2477781
n2
153484967099025
n3
1.9015106763179E+21
n4
2.3557635125389E+28
n5
2.918533035931E+35
2 √n
3519.7876356394
3 √n
231.38985161224
4 √n
59.327798169487
5 √n
26.218424122042
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
-12388904
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 12388905 can be divided by 8 positive divisors.
The sum of these divisors (counting 12388905) is 1, the average is 0.125.
Base
System
Value
2
Binary
101111010000101000101001
3
Ternary
212022102101100
4
Quaternary
233100220221
5
Quinary
11132421110
6
Senary
1121312013
8
Octal
57205051
10
Decimal
12388905
12
Duodecimal
4195609
16
Hexadecimal
bd0a29
20
Vigesimal
3h8c55
36
Base36
7djc9
md5
63f9e06c31318f0401ea6094e86b0c44
sha1
4520e68202844eacb0fbead4af83d749ac786a02
sha256
7e5346671c9761c9f4a3b108c6ad568c53c532ca3dc27f6ebb8c3e1278958eff
sha512
c874d17af6c6e4a24532e86521415ff425c8006078a5c440ec89911106ea8769275afcffcf841c936143e0b5013ae14e8889b699d8cf2e353d68f1c9d8d7dbe5
ripemd-160
c23973dbac70a43bd304a565a41ef2a49d3e7fc2
Diameter
24777810
Circumference
77841785.868044
Area
4.8218724507477E+14
Volume
7.9650292952574E+21
Surface area
1.9287489802991E+15
Circumference
77841785.868044
Perimeter
49555620
Area
153484967099025
Diagonal
17520557.473952
Surface area
920909802594150
Volume
1.9015106763179E+21
Space diagonal
21458212.910144
Perimeter
37166715
Area
66460940303387
Altitude
10729106.455072
Surface area
66460940303387
Volume
2.2409518228717E+20
Height
5840185.8246506