12906981 is an odd 8-digits composite number following 12906980
and preceding 12906982 . In scientific notation, it is written as 1.2906981 × 10^7.
The sum of its digits is 36. It has a total of 3 prime factors and 6 positive divisors.
There are 8604648 positive integers (up to 12906981) that are relatively prime to 12906981.
12906981 has 6 divisors, whose sum is 18643430
The reverse of 12906981 is 18960921
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 36
Digital Root 9
Name
twelve million nine hundred six thousand nine hundred eighty-one
Scientific notation
1.2906981 × 10^7
Engineering notation
1.2906981 × 10^6
Prime Factorization
3 × 3 × 1434109
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
4302327
Product of the distinct prime numbers
The prime factorization of 12906981 is 3 × 3 × 1434109.
Since it has a total of 3 prime factors.
10 , 4 , 20 , 8 , 511 , 291 , 8446 , 5623 , 92518 , 53760 , 294166 , 748071 , 3522813 , 6461592 , 59670810 , 46002763 , 728794677 , 928272854 , 2505019846 , 6197477643
n×2
25813962
n×3
38720943
n×4
51627924
n×5
64534905
n÷2
6453490.5
n÷3
4302327
n÷3
3226745.25
n÷5
2581396.2
n2
166590158534361
n3
2.15017601099E+21
n4
2.7752280920504E+28
n5
3.581981625476E+35
2 √n
3592.6287033313
3 √n
234.57130838297
4 √n
59.938541051074
5 √n
26.434124684549
6 divisors
τ
Total Divisors
6
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-12906980
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.16666666666667
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
6
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 12906981 can be divided by 6 positive divisors.
The sum of these divisors (counting 12906981) is 1, the average is 0.16666666666667.
Base
System
Value
2
Binary
110001001111000111100101
3
Ternary
220021202001100
4
Quaternary
301033013211
5
Quinary
11301010411
6
Senary
1140350313
8
Octal
61170745
10
Decimal
12906981
12
Duodecimal
43a5399
16
Hexadecimal
c4f1e5
20
Vigesimal
40d791
36
Base36
7on39
md5
16e0b93861e4783a4ae9ec9d0046a7af
sha1
65430b0c2ec106c43956dc61a7bb7ce2d22573bd
sha256
f1bb97b796e96172791300dfb945f2ae43abd96075ca2fd9ad511e2b0a98f43e
sha512
9bb70728eaa1bfeb88d0dde477b0450d6b4546329234266bf2a0f5ffa6cb9ca827cb7f14cf9cd8113a646f7d00ffa9ba6bb0a8fe0bab58c905ac21ed5c38911d
ripemd-160
b66cc3fda22b6226dc5da4c55ca9376424ec6137
Diameter
25813962
Circumference
81096953.379246
Area
5.2335841821191E+14
Volume
9.0066362134015E+21
Surface area
2.0934336728476E+15
Circumference
81096953.379246
Perimeter
51627924
Area
166590158534361
Diagonal
18253227.579492
Surface area
999540951206166
Volume
2.15017601099E+21
Space diagonal
22355546.864326
Perimeter
38720943
Area
72135654655617
Altitude
11177773.432163
Surface area
72135654655617
Volume
2.5340067301928E+20
Height
6084409.193164