12771981 is an odd 8-digits composite number following 12771980
and preceding 12771982 . In scientific notation, it is written as 1.2771981 × 10^7.
The sum of its digits is 36. It has a total of 3 prime factors and 8 positive divisors.
There are 8013696 positive integers (up to 12771981) that are relatively prime to 12771981.
12771981 has 8 divisors, whose sum is 15026040
The reverse of 12771981 is 18917721
Previous prime number is 17
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 36
Digital Root 9
Name
twelve million seven hundred seventy-one thousand nine hundred eighty-one
Scientific notation
1.2771981 × 10^7
Engineering notation
1.2771981 × 10^6
Prime Factorization
9 × 17 × 83477
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
12771981
Product of the distinct prime numbers
The prime factorization of 12771981 is 9 × 17 × 83477.
Since it has a total of 3 prime factors.
1 , 8 , 43 , 46 , 280 , 533 , 3026 , 8688 , 61351 , 39781 , 616280 , 68622 , 3682476 , 6167211 , 33901857 , 85769112 , 528121313 , 183560504 , 287884478 , 4900591106
n×2
25543962
n×3
38315943
n×4
51087924
n×5
63859905
n÷2
6385990.5
n÷3
4257327
n÷3
3192995.25
n÷5
2554396.2
n2
163123498664361
n3
2.0834102255947E+21
n4
2.6609275816502E+28
n5
3.3985316515212E+35
2 √n
3573.7908444675
3 √n
233.75061092046
4 √n
59.781191393845
5 √n
26.378594557156
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
-12771980
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 12771981 can be divided by 8 positive divisors.
The sum of these divisors (counting 12771981) is 1, the average is 0.125.
Base
System
Value
2
Binary
110000101110001010001101
3
Ternary
220000212212100
4
Quaternary
300232022031
5
Quinary
11232200411
6
Senary
1133425313
8
Octal
60561215
10
Decimal
12771981
12
Duodecimal
433b239
16
Hexadecimal
c2e28d
20
Vigesimal
3jg9j1
36
Base36
7lqx9
md5
d736dc0a2689dbf464a71b5bfec7c862
sha1
08ea51bbadf28901160819239aa37d73fd136b6a
sha256
63a04828ad82b4f83ebeba8566c18414c8943dd6917f5fbb37454ea0a3a46c21
sha512
92dd5bcb1ac5943e4ac382abf26fb3f50538b428ea73a39319efe5389ec535b5dd2bb78d2f925db784d5da195299db9f4bd33bf5476d6b3ebed2b11a5780be0e
ripemd-160
0857020eb53f907e9d2bc0f7125afbedc32e8391
Diameter
25543962
Circumference
80248723.362777
Area
5.1246758503182E+14
Volume
8.7269683455231E+21
Surface area
2.0498703401273E+15
Circumference
80248723.362777
Perimeter
51087924
Area
163123498664361
Diagonal
18062308.748571
Surface area
978740991986166
Volume
2.0834102255947E+21
Space diagonal
22121720.005304
Perimeter
38315943
Area
70634546898767
Altitude
11060860.002652
Surface area
70634546898767
Volume
2.4553224975191E+20
Height
6020769.5828572