12912505 is an odd 8-digits composite number following 12912504
and preceding 12912506 . In scientific notation, it is written as 1.2912505 × 10^7.
The sum of its digits is 25. It has a total of 2 prime factors and 4 positive divisors.
There are 10330000 positive integers (up to 12912505) that are relatively prime to 12912505.
12912505 has 4 divisors, whose sum is 15495012
The reverse of 12912505 is 50521921
Previous prime number is 5
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 25
Digital Root 7
Name
twelve million nine hundred twelve thousand five hundred five
Scientific notation
1.2912505 × 10^7
Engineering notation
1.2912505 × 10^6
Prime Factorization
5 × 2582501
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
12912505
Product of the distinct prime numbers
The prime factorization of 12912505 is 5 × 2582501.
Since it has a total of 2 prime factors.
7 , 3 , 42 , 82 , 917 , 441 , 8850 , 8164 , 7227 , 65857 , 3137 , 637270 , 6994416 , 3463158 , 56796973 , 34045745 , 613219467 , 633420901 , 7382491884 , 2690982142
n×2
25825010
n×3
38737515
n×4
51650020
n×5
64562525
n÷2
6456252.5
n÷3
4304168.3333333
n÷3
3228126.25
n÷5
2582501
n2
166732785375025
n3
2.1529379248189E+21
n4
2.7799821718914E+28
n5
3.5896533694459E+35
2 √n
3593.3974174867
3 √n
234.60476797858
4 √n
59.94495322783
5 √n
26.43638698141
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
-12912504
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 12912505 can be divided by 4 positive divisors.
The sum of these divisors (counting 12912505) is 1, the average is 0.25.
Base
System
Value
2
Binary
110001010000011101111001
3
Ternary
220022000121221
4
Quaternary
301100131321
5
Quinary
11301200010
6
Senary
1140432041
8
Octal
61203571
10
Decimal
12912505
12
Duodecimal
43a8621
16
Hexadecimal
c50779
20
Vigesimal
40e155
36
Base36
7orcp
md5
0dae7d9b57868c733f6cc776e40874e3
sha1
68536d0eb2616b0caed7f97399dac3ffb56f529e
sha256
0bcd91c1e935be79f5d1680db4a4bd65501d40b69e830006a2288c61e4ffe98c
sha512
9f50920ab26ae5e7ebf3c04a4c96cc460760b0f300b568d9f6612f10bc822859e85975853b06ccabc67fa64baee1ca8777121f0e0dc7952d32440c461efd853a
ripemd-160
390395bd03529a4c239f5187b3ea5e73aa32c95e
Diameter
25825010
Circumference
81131661.694883
Area
5.2380649364674E+14
Volume
9.0182052909947E+21
Surface area
2.095225974587E+15
Circumference
81131661.694883
Perimeter
51650020
Area
166732785375025
Diagonal
18261039.69521
Surface area
1000396712250150
Volume
2.1529379248189E+21
Space diagonal
22365114.712987
Perimeter
38737515
Area
72197413889255
Altitude
11182557.356494
Surface area
72197413889255
Volume
2.5372616768553E+20
Height
6087013.2317368