12798981 is an odd 8-digits composite number following 12798980
and preceding 12798982 . In scientific notation, it is written as 1.2798981 × 10^7.
The sum of its digits is 45. It has a total of 4 prime factors and 16 positive divisors.
There are 7809696 positive integers (up to 12798981) that are relatively prime to 12798981.
12798981 has 16 divisors, whose sum is 15444800
The reverse of 12798981 is 18989721
Previous prime number is 139
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 45
Digital Root 9
Name
twelve million seven hundred ninety-eight thousand nine hundred eighty-one
Scientific notation
1.2798981 × 10^7
Engineering notation
1.2798981 × 10^6
Prime Factorization
9 × 13 × 139 × 787
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
12798981
Product of the distinct prime numbers
The prime factorization of 12798981 is 9 × 13 × 139 × 787.
Since it has a total of 4 prime factors.
3 , 10 , 93 , 66 , 327 , 291 , 6011 , 8428 , 66641 , 78849 , 619443 , 684045 , 2653661 , 4483157 , 72852597 , 84481736 , 240220404 , 308571541 , 2017413562 , 5219227682
n×2
25597962
n×3
38396943
n×4
51195924
n×5
63994905
n÷2
6399490.5
n÷3
4266327
n÷3
3199745.25
n÷5
2559796.2
n2
163813914638361
n3
2.096651180992E+21
n4
2.6834998629144E+28
n5
3.4346063758944E+35
2 √n
3577.5663515859
3 √n
233.91521144631
4 √n
59.81276077549
5 √n
26.389738021277
1 , 9 , 13 , 117 , 139 , 787 , 1251 , 1807 , 7083 , 10231 , 16263 , 92079 , 109393 , 984537 , 1422109 , 12798981
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-12798980
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 12798981 can be divided by 16 positive divisors.
The sum of these divisors (counting 12798981) is 1, the average is 0.0625.
Base
System
Value
2
Binary
110000110100110000000101
3
Ternary
220002020220100
4
Quaternary
300310300011
5
Quinary
11234031411
6
Senary
1134154313
8
Octal
60646005
10
Decimal
12798981
12
Duodecimal
4352999
16
Hexadecimal
c34c05
20
Vigesimal
3jjh91
36
Base36
7mbr9
md5
5ed27a68b25e06a5a423bade7a38ab20
sha1
d92aed74b7bc83141c439af02077c8f893bff260
sha256
dd1df8a829e546769c6d7c30b9245173a8f10d24cf9cbae0f58b1078c42e19a2
sha512
6e66152a0f6e666e53fcbb20933810f0fbf6ff8f1015aa16fc7a1137aadda7d22c5fb07fb19e79b323f7b0861bcdca176175f55fdd3f3b51ed4d3dd2839e1eb2
ripemd-160
ba745b5966fb352a9bfa8c90dc3bbae5ade759bb
Diameter
25597962
Circumference
80418369.366071
Area
5.1463659078366E+14
Volume
8.7824319297931E+21
Surface area
2.0585463631346E+15
Circumference
80418369.366071
Perimeter
51195924
Area
163813914638361
Diagonal
18100492.514756
Surface area
982883487830166
Volume
2.096651180992E+21
Space diagonal
22168485.377109
Perimeter
38396943
Area
70933505785098
Altitude
11084242.688554
Surface area
70933505785098
Volume
2.4709271131037E+20
Height
6033497.5049185