12781392 is an even 8-digits composite number following 12781391
and preceding 12781393 . In scientific notation, it is written as 1.2781392 × 10^7.
The sum of its digits is 33. It has a total of 6 prime factors and 20 positive divisors.
There are 3932544 positive integers (up to 12781392) that are relatively prime to 12781392.
12781392 has 20 divisors, whose sum is 25400160
The reverse of 12781392 is 29318721
Previous prime number is 39
Is Prime? no
Number parity even
Number length 8
Sum of Digits 33
Digital Root 6
Name
twelve million seven hundred eighty-one thousand three hundred ninety-two
Scientific notation
1.2781392 × 10^7
Engineering notation
1.2781392 × 10^6
Prime Factorization
2 × 2 × 2 × 2 × 39 × 20483
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
6
Total number of prime factors
rad
Radical
1597674
Product of the distinct prime numbers
The prime factorization of 12781392 is 2 × 2 × 2 × 2 × 39 × 20483.
Since it has a total of 6 prime factors.
8 , 5 , 71 , 89 , 258 , 168 , 6494 , 6871 , 88747 , 41356 , 346315 , 697135 , 1328296 , 5899137 , 64500357 , 75022882 , 959544883 , 999443426 , 620326179 , 2219017764
n×2
25562784
n×3
38344176
n×4
51125568
n×5
63906960
n÷2
6390696
n÷3
4260464
n÷3
3195348
n÷5
2556278.4
n2
163363981457664
n3
2.0880190856911E+21
n4
2.66877904377E+28
n5
3.411071111981E+35
2 √n
3575.1072711179
3 √n
233.80800966197
4 √n
59.79220075493
5 √n
26.382480811247
1 , 2 , 4 , 8 , 16 , 39 , 78 , 156 , 312 , 624 , 20483 , 40966 , 81932 , 163864 , 327728 , 798837 , 1597674 , 3195348 , 6390696 , 12781392
20 divisors
τ
Total Divisors
20
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-12781391
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.05
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
20
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 12781392 can be divided by 20 positive divisors.
The sum of these divisors (counting 12781392) is 1, the average is 0.05.
Base
System
Value
2
Binary
110000110000011101010000
3
Ternary
220001100202220
4
Quaternary
300300131100
5
Quinary
11233001032
6
Senary
1133541040
8
Octal
60603520
10
Decimal
12781392
12
Duodecimal
4344780
16
Hexadecimal
c30750
20
Vigesimal
3jhd9c
36
Base36
7ly6o
md5
803ae7d664a6d54790e31a2292f6c316
sha1
a0e5129b85c62f00eeb6f6d08752ccf9351a49e9
sha256
e33d3b9e6e92daa7b842c7b29a6aa0c553cf6bac3b80821bca7eda3b6ec445a1
sha512
7f42bf84181166f4ba18c50ef0dd2ea08e3bb5f1455d0edcdb85ffdafb7e4045438746547b9855e3f3136e3f81c84034683d22bb47552bc5cf9971ca140b6981
ripemd-160
cef1be1aebde1617d4ab42c6b3c4947e29478db8
Diameter
25562784
Circumference
80307854.419703
Area
5.1322308400858E+14
Volume
8.7462738935501E+21
Surface area
2.0528923360343E+15
Circumference
80307854.419703
Perimeter
51125568
Area
163363981457664
Diagonal
18075617.912407
Surface area
980183888745984
Volume
2.0880190856911E+21
Space diagonal
22138020.335454
Perimeter
38344176
Area
70738679002854
Altitude
11069010.167727
Surface area
70738679002854
Volume
2.4607540912319E+20
Height
6025205.9708023