12886945 is an odd 8-digits composite number following 12886944
and preceding 12886946 . In scientific notation, it is written as 1.2886945 × 10^7.
The sum of its digits is 43. It has a total of 2 prime factors and 4 positive divisors.
There are 10309552 positive integers (up to 12886945) that are relatively prime to 12886945.
12886945 has 4 divisors, whose sum is 15464340
The reverse of 12886945 is 54968821
Previous prime number is 5
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 43
Digital Root 7
Name
twelve million eight hundred eighty-six thousand nine hundred forty-five
Scientific notation
1.2886945 × 10^7
Engineering notation
1.2886945 × 10^6
Prime Factorization
5 × 2577389
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
12886945
Product of the distinct prime numbers
The prime factorization of 12886945 is 5 × 2577389.
Since it has a total of 2 prime factors.
7 , 7 , 88 , 22 , 8 , 689 , 4406 , 1248 , 33771 , 73594 , 664298 , 450782 , 9697612 , 8633312 , 4435171 , 29896216 , 860990044 , 854050933 , 8790376305 , 7026404661
n×2
25773890
n×3
38660835
n×4
51547780
n×5
64434725
n÷2
6443472.5
n÷3
4295648.3333333
n÷3
3221736.25
n÷5
2577389
n2
166073351433025
n3
2.1401781458831E+21
n4
2.7580358056197E+28
n5
3.5542655735052E+35
2 √n
3589.839132886
3 √n
234.4498675192
4 √n
59.915266275683
5 √n
26.42591264337
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
-12886944
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 12886945 can be divided by 4 positive divisors.
The sum of these divisors (counting 12886945) is 1, the average is 0.25.
Base
System
Value
2
Binary
110001001010001110100001
3
Ternary
220020201120021
4
Quaternary
301022032201
5
Quinary
11244340240
6
Senary
1140113441
8
Octal
61121641
10
Decimal
12886945
12
Duodecimal
4395881
16
Hexadecimal
c4a3a1
20
Vigesimal
40ah75
36
Base36
7o7mp
md5
d3e7c9801536380b08709c719adf17f5
sha1
52d953446c31d5dfe09762a4a50f8d0ed4640218
sha256
cf2c6646f57fc6e740bcd0865db7cb6b6f8883171c18dba97ef4d5a1c6443b74
sha512
ea84b0b22d5378ca248f141ced559b1005b441b7a24a9a6d40e4f6872af93a5a5d61a6cf61f4da8e1f2f0f84d20b0cd0720e2f89d26671062e4528abb9f164e1
ripemd-160
da3f173a7cd883c3cdc167e4b92134124182b2cb
Diameter
25773890
Circumference
80971063.478431
Area
5.2173482081903E+14
Volume
8.9647572539729E+21
Surface area
2.0869392832761E+15
Circumference
80971063.478431
Perimeter
51547780
Area
166073351433025
Diagonal
18224892.396556
Surface area
996440108598150
Volume
2.1401781458831E+21
Space diagonal
22320843.494346
Perimeter
38660835
Area
71911870616310
Altitude
11160421.747173
Surface area
71911870616310
Volume
2.5222241331686E+20
Height
6074964.1321854