12581985 is an odd 8-digits composite number following 12581984
and preceding 12581986 . In scientific notation, it is written as 1.2581985 × 10^7.
The sum of its digits is 39. It has a total of 3 prime factors and 8 positive divisors.
There are 6128640 positive integers (up to 12581985) that are relatively prime to 12581985.
12581985 has 8 divisors, whose sum is 12835680
The reverse of 12581985 is 58918521
Previous prime number is 65
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 39
Digital Root 3
Name
twelve million five hundred eighty-one thousand nine hundred eighty-five
Scientific notation
1.2581985 × 10^7
Engineering notation
1.2581985 × 10^6
Prime Factorization
339 × 65 × 571
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
12581985
Product of the distinct prime numbers
The prime factorization of 12581985 is 339 × 65 × 571.
Since it has a total of 3 prime factors.
2 , 4 , 91 , 68 , 901 , 73 , 8426 , 804 , 58636 , 8715 , 574447 , 492362 , 3250495 , 643222 , 90542814 , 92934961 , 124192253 , 996997556 , 2875260526 , 9389099661
n×2
25163970
n×3
37745955
n×4
50327940
n×5
62909925
n÷2
6290992.5
n÷3
4193995
n÷3
3145496.25
n÷5
2516397
n2
158306346540225
n3
1.9918080775739E+21
n4
2.5060899354914E+28
n5
3.1531585977004E+35
2 √n
3547.1093865287
3 √n
232.58572396792
4 √n
59.557614009702
5 √n
26.299641749171
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
-12581984
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 12581985 can be divided by 8 positive divisors.
The sum of these divisors (counting 12581985) is 1, the average is 0.125.
Base
System
Value
2
Binary
101111111111110001100001
3
Ternary
212200020020110
4
Quaternary
233333301201
5
Quinary
11210110420
6
Senary
1125401533
8
Octal
57776141
10
Decimal
12581985
12
Duodecimal
42692a9
16
Hexadecimal
bffc61
20
Vigesimal
3icej5
36
Base36
7hobl
md5
e30ff5a5bcc272bcea0ed000bc63f65f
sha1
a9489825e47b5885564bcbf086f5c579195a2d05
sha256
6a7725637ebbffca00a5ed02687af07d461e5035ac2576268337576254146489
sha512
08ceab1f96bd49331aaeec27ded7231113e4dadbea92dc47e4995ef4c688680e848e917d2acc9a55937895cbafa70382090ced8bfc4afb3db5fa24ca4a06f19f
ripemd-160
9f11719ded3cc76bbbc3ab2b832a73aaa96726fe
Diameter
25163970
Circumference
79054943.287154
Area
4.9733405530741E+14
Volume
8.343266165156E+21
Surface area
1.9893362212296E+15
Circumference
79054943.287154
Perimeter
50327940
Area
158306346540225
Diagonal
17793613.828575
Surface area
949838079241350
Volume
1.9918080775739E+21
Space diagonal
21792637.28007
Perimeter
37745955
Area
68548658842069
Altitude
10896318.640035
Surface area
68548658842069
Volume
2.3473683307911E+20
Height
5931204.6095249