12581385 is an odd 8-digits composite number following 12581384
and preceding 12581386 . In scientific notation, it is written as 1.2581385 × 10^7.
The sum of its digits is 33. It has a total of 3 prime factors and 8 positive divisors.
There are 6640128 positive integers (up to 12581385) that are relatively prime to 12581385.
12581385 has 8 divisors, whose sum is 13560064
The reverse of 12581385 is 58318521
Previous prime number is 97
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 33
Digital Root 6
Name
twelve million five hundred eighty-one thousand three hundred eighty-five
Scientific notation
1.2581385 × 10^7
Engineering notation
1.2581385 × 10^6
Prime Factorization
15 × 97 × 8647
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
12581385
Product of the distinct prime numbers
The prime factorization of 12581385 is 15 × 97 × 8647.
Since it has a total of 3 prime factors.
10 , 5 , 33 , 84 , 999 , 601 , 2939 , 611 , 60666 , 25865 , 112166 , 979123 , 3945535 , 6904977 , 56445038 , 65787861 , 669276710 , 327791622 , 6010629352 , 9893717303
n×2
25162770
n×3
37744155
n×4
50325540
n×5
62906925
n÷2
6290692.5
n÷3
4193795
n÷3
3145346.25
n÷5
2516277
n2
158291248518225
n3
1.9915231397385E+21
n4
2.5056119357458E+28
n5
3.1524068424214E+35
2 √n
3547.0248096116
3 √n
232.58202678626
4 √n
59.55690396261
5 √n
26.299390912979
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
-12581384
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 12581385 can be divided by 8 positive divisors.
The sum of these divisors (counting 12581385) is 1, the average is 0.125.
Base
System
Value
2
Binary
101111111111101000001001
3
Ternary
212200012102020
4
Quaternary
233333220021
5
Quinary
11210101020
6
Senary
1125355053
8
Octal
57775011
10
Decimal
12581385
12
Duodecimal
4268a89
16
Hexadecimal
bffa09
20
Vigesimal
3icd95
36
Base36
7hnux
md5
1f86cdc70df8feef8eeba5c3ae436d8b
sha1
7b93e8548ba882d2f30d83994dbce6acbad4909b
sha256
bdbec8266f383a8c1ca5495805129c1a3ef79d96fb899bf0c40933332ccc89e0
sha512
f8da2830fe93a97552c5f36516a2f3973abba4e7b9c45c8a792d49cb888eb17117f8e450009a278c9cc08287dc4db2b04fa37c390d4f20a318f8e0f8c932dd6f
ripemd-160
c37215c7b4e8de9969406030e84cd43738292d42
Diameter
25162770
Circumference
79051173.37597
Area
4.9728662347241E+14
Volume
8.3420726203419E+21
Surface area
1.9891464938896E+15
Circumference
79051173.37597
Perimeter
50325540
Area
158291248518225
Diagonal
17792765.300437
Surface area
949747491109350
Volume
1.9915231397385E+21
Space diagonal
21791598.049585
Perimeter
37744155
Area
68542121206769
Altitude
10895799.024792
Surface area
68542121206769
Volume
2.3470325283317E+20
Height
5930921.7668125