12731985 is an odd 8-digits composite number following 12731984
and preceding 12731986 . In scientific notation, it is written as 1.2731985 × 10^7.
The sum of its digits is 36. It has a total of 3 prime factors and 8 positive divisors.
There are 5808672 positive integers (up to 12731985) that are relatively prime to 12731985.
12731985 has 8 divisors, whose sum is 12932000
The reverse of 12731985 is 58913721
Previous prime number is 105
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 36
Digital Root 9
Name
twelve million seven hundred thirty-one thousand nine hundred eighty-five
Scientific notation
1.2731985 × 10^7
Engineering notation
1.2731985 × 10^6
Prime Factorization
243 × 105 × 499
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
12731985
Product of the distinct prime numbers
The prime factorization of 12731985 is 243 × 105 × 499.
Since it has a total of 3 prime factors.
8 , 9 , 100 , 97 , 913 , 56 , 5962 , 9839 , 79182 , 9236 , 871948 , 354716 , 2240081 , 568667 , 78841817 , 93906704 , 977557444 , 12145462 , 8770204538 , 9434347371
n×2
25463970
n×3
38195955
n×4
50927940
n×5
63659925
n÷2
6365992.5
n÷3
4243995
n÷3
3182996.25
n÷5
2546397
n2
162103442040225
n3
2.0638985925045E+21
n4
2.6277525921289E+28
n5
3.3456506586696E+35
2 √n
3568.190717997
3 √n
233.50635579482
4 √n
59.734334498653
5 √n
26.362052686082
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
-12731984
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 12731985 can be divided by 8 positive divisors.
The sum of these divisors (counting 12731985) is 1, the average is 0.125.
Base
System
Value
2
Binary
110000100100011001010001
3
Ternary
212221212000000
4
Quaternary
300210121101
5
Quinary
11224410420
6
Senary
1132520213
8
Octal
60443121
10
Decimal
12731985
12
Duodecimal
4320069
16
Hexadecimal
c24651
20
Vigesimal
3jb9j5
36
Base36
7kw29
md5
366c03d938de13c9946d1b8887274172
sha1
55615558a0880cba5a9880814db6d1e6afbf4458
sha256
58a605f3b910e3d80d0f61e3a24c5a8b3eedc501d6800e60c803df018bd31430
sha512
d9ce896dca589d05ce8c7ab458f9f3328bc46b837a18e086af3fee940ea20a16bc8087ad071a6af25fa19dcd64d21deb83e5eaf4afef77a07b7bda6aac3642d5
ripemd-160
56352eb913be0e4164bfc898f05452e2dfd2c15c
Diameter
25463970
Circumference
79997421.083231
Area
5.0926298263519E+14
Volume
8.6452382079553E+21
Surface area
2.0370519305408E+15
Circumference
79997421.083231
Perimeter
50927940
Area
162103442040225
Diagonal
18005745.862931
Surface area
972620652241350
Volume
2.0638985925045E+21
Space diagonal
22052444.901205
Perimeter
38195955
Area
70192849423867
Altitude
11026222.450602
Surface area
70192849423867
Volume
2.4323278174022E+20
Height
6001915.2876436