12986945 is an odd 8-digits composite number following 12986944
and preceding 12986946 . In scientific notation, it is written as 1.2986945 × 10^7.
The sum of its digits is 44. It has a total of 3 prime factors and 8 positive divisors.
There are 10234224 positive integers (up to 12986945) that are relatively prime to 12986945.
12986945 has 8 divisors, whose sum is 15817344
The reverse of 12986945 is 54968921
Previous prime number is 67
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 44
Digital Root 8
Name
twelve million nine hundred eighty-six thousand nine hundred forty-five
Scientific notation
1.2986945 × 10^7
Engineering notation
1.2986945 × 10^6
Prime Factorization
5 × 67 × 38767
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
12986945
Product of the distinct prime numbers
The prime factorization of 12986945 is 5 × 67 × 38767.
Since it has a total of 3 prime factors.
4 , 9 , 53 , 26 , 55 , 212 , 5912 , 3621 , 25865 , 7141 , 997495 , 934938 , 9679120 , 4867248 , 76054569 , 57537399 , 360313699 , 217446560 , 9551897405 , 3489338168
n×2
25973890
n×3
38960835
n×4
51947780
n×5
64934725
n÷2
6493472.5
n÷3
4328981.6666667
n÷3
3246736.25
n÷5
2597389
n2
168660740433025
n3
2.190387759663E+21
n4
2.8446445363416E+28
n5
3.6943242138019E+35
2 √n
3603.7404179547
3 √n
235.05473298849
4 √n
60.03116205734
5 √n
26.466797847194
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
-12986944
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 12986945 can be divided by 8 positive divisors.
The sum of these divisors (counting 12986945) is 1, the average is 0.125.
Base
System
Value
2
Binary
110001100010101001000001
3
Ternary
220102210201222
4
Quaternary
301202221001
5
Quinary
11311040240
6
Senary
1142204425
8
Octal
61425101
10
Decimal
12986945
12
Duodecimal
4423715
16
Hexadecimal
c62a41
20
Vigesimal
413775
36
Base36
7qcsh
md5
ea8bd0dbe2be685846cf1b4d85568f18
sha1
440fd36693a616e291384baeda8d4195a797118b
sha256
65d43f32985b9ac1f802754076409c0ecf17ea7f37473cb4f0b2c19453697e49
sha512
29557b85e93c67e7d498a5b33bc060124198ec8a1aac5a71432bc62b76b5828e820bdfad4a8eccbc485cecc46b72354e0cb0a5c4b4ab0f2fa88f5133067a4604
ripemd-160
c427d14e586297139fb65e876afdb8f207c8ee6b
Diameter
25973890
Circumference
81599382.009149
Area
5.2986334309341E+14
Volume
9.1750747923603E+21
Surface area
2.1194533723736E+15
Circumference
81599382.009149
Perimeter
51947780
Area
168660740433025
Diagonal
18366313.752793
Surface area
1011964442598150
Volume
2.190387759663E+21
Space diagonal
22494048.575103
Perimeter
38960835
Area
73032242918046
Altitude
11247024.287551
Surface area
73032242918046
Volume
2.5813967304762E+20
Height
6122104.5842645