12912887 is an odd 8-digits composite number following 12912886
and preceding 12912888 . In scientific notation, it is written as 1.2912887 × 10^7.
The sum of its digits is 38. It has a total of 3 prime factors and 8 positive divisors.
There are 11883168 positive integers (up to 12912887) that are relatively prime to 12912887.
12912887 has 8 divisors, whose sum is 13948704
The reverse of 12912887 is 78821921
Previous prime number is 2663
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 38
Digital Root 2
Name
twelve million nine hundred twelve thousand eight hundred eighty-seven
Scientific notation
1.2912887 × 10^7
Engineering notation
1.2912887 × 10^6
Prime Factorization
13 × 2663 × 373
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
12912887
Product of the distinct prime numbers
The prime factorization of 12912887 is 13 × 2663 × 373.
Since it has a total of 3 prime factors.
5 , 5 , 13 , 57 , 910 , 945 , 1838 , 2397 , 64723 , 19862 , 152042 , 312525 , 8015396 , 4738557 , 93664380 , 57240159 , 536145285 , 887537461 , 5496425721 , 8165591472
n×2
25825774
n×3
38738661
n×4
51651548
n×5
64564435
n÷2
6456443.5
n÷3
4304295.6666667
n÷3
3228221.75
n÷5
2582577.4
n2
166742650674769
n3
2.1531290062438E+21
n4
2.7803111554048E+28
n5
3.5901843774582E+35
2 √n
3593.4505701345
3 √n
234.6070814501
4 √n
59.945396571668
5 √n
26.436543396921
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
-12912886
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 12912887 can be divided by 8 positive divisors.
The sum of these divisors (counting 12912887) is 1, the average is 0.125.
Base
System
Value
2
Binary
110001010000100011110111
3
Ternary
220022001011002
4
Quaternary
301100203313
5
Quinary
11301203022
6
Senary
1140433515
8
Octal
61204367
10
Decimal
12912887
12
Duodecimal
43a889b
16
Hexadecimal
c508f7
20
Vigesimal
40e247
36
Base36
7ornb
md5
b9dfa1620091678ef55a811b8f41641c
sha1
6414e4be7075e4037bd52cb6beba1920dc3de57a
sha256
7fe1b5853e837822d88d888160c3f4cbb08a9ad7d4bbe88b1930a8bc83bb3adf
sha512
741be5520c1e52d0d82aacb99cf4dbc82584d88c1bcc40d1e3cb6206b4b87463b52c29f9eb009c2cd0bffe87adf0ccd38714da5136a02aa4acfcbb21ffdfc1ba
ripemd-160
1a091f33e82c1d9321733fa1df5315e0885fe06b
Diameter
25825774
Circumference
81134061.87167
Area
5.2383748639994E+14
Volume
9.0190056909953E+21
Surface area
2.0953499455998E+15
Circumference
81134061.87167
Perimeter
51651548
Area
166742650674769
Diagonal
18261579.924791
Surface area
1000455904048614
Volume
2.1531290062438E+21
Space diagonal
22365776.356396
Perimeter
38738661
Area
72201685689352
Altitude
11182888.178198
Surface area
72201685689352
Volume
2.537486868474E+20
Height
6087193.3082637