12781131 is an odd 8-digits composite number following 12781130
and preceding 12781132 . In scientific notation, it is written as 1.2781131 × 10^7.
The sum of its digits is 24. It has a total of 3 prime factors and 8 positive divisors.
There are 7746120 positive integers (up to 12781131) that are relatively prime to 12781131.
12781131 has 8 divisors, whose sum is 18590784
The reverse of 12781131 is 13118721
Previous prime number is 11
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 24
Digital Root 6
Name
twelve million seven hundred eighty-one thousand one hundred thirty-one
Scientific notation
1.2781131 × 10^7
Engineering notation
1.2781131 × 10^6
Prime Factorization
3 × 11 × 387307
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
12781131
Product of the distinct prime numbers
The prime factorization of 12781131 is 3 × 11 × 387307.
Since it has a total of 3 prime factors.
8 , 9 , 41 , 98 , 992 , 428 , 5909 , 870 , 67485 , 73883 , 25424 , 951827 , 9699665 , 9411062 , 30654005 , 43805054 , 315529837 , 511455560 , 3503319623 , 4673950491
n×2
25562262
n×3
38343393
n×4
51124524
n×5
63905655
n÷2
6390565.5
n÷3
4260377
n÷3
3195282.75
n÷5
2556226.2
n2
163357309639161
n3
2.0878911743057E+21
n4
2.6685610612545E+28
n5
3.4107228505392E+35
2 √n
3575.0707685303
3 √n
233.80641817372
4 √n
59.791895508759
5 √n
26.382373062674
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
-12781130
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 12781131 can be divided by 8 positive divisors.
The sum of these divisors (counting 12781131) is 1, the average is 0.125.
Base
System
Value
2
Binary
110000110000011001001011
3
Ternary
220001100102020
4
Quaternary
300300121023
5
Quinary
11232444011
6
Senary
1133535523
8
Octal
60603113
10
Decimal
12781131
12
Duodecimal
43445a3
16
Hexadecimal
c3064b
20
Vigesimal
3jhcgb
36
Base36
7lxzf
md5
260090057c689b41761dabb8826e7228
sha1
680f0f33d46a9225e00fdf200d63065b3d4d141b
sha256
840915fe6f7adff13eded2c42722bd5806acf4ba52991f161ec56fb99a17321e
sha512
96dc8111f9c48660840d4df21ac7b93dff37b9b59937eb1b30212705ecab6190f394032e2677f3ebd8bae0f56539921b63fcfd6adb867908b4e3d84c7e112596
ripemd-160
567f8f8716378041113297240787fb2d55c03738
Diameter
25562262
Circumference
80306214.508338
Area
5.1320212387258E+14
Volume
8.7457380995916E+21
Surface area
2.0528084954903E+15
Circumference
80306214.508338
Perimeter
51124524
Area
163357309639161
Diagonal
18075248.802667
Surface area
980143857834966
Volume
2.0878911743057E+21
Space diagonal
22137568.270194
Perimeter
38343393
Area
70735790020697
Altitude
11068784.135097
Surface area
70735790020697
Volume
2.4606033462185E+20
Height
6025082.9342224