12781641 is an odd 8-digits composite number following 12781640
and preceding 12781642 . In scientific notation, it is written as 1.2781641 × 10^7.
The sum of its digits is 30. It has a total of 3 prime factors and 8 positive divisors.
There are 8246160 positive integers (up to 12781641) that are relatively prime to 12781641.
12781641 has 8 divisors, whose sum is 17592064
The reverse of 12781641 is 14618721
Previous prime number is 31
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 30
Digital Root 3
Name
twelve million seven hundred eighty-one thousand six hundred forty-one
Scientific notation
1.2781641 × 10^7
Engineering notation
1.2781641 × 10^6
Prime Factorization
3 × 31 × 137437
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
12781641
Product of the distinct prime numbers
The prime factorization of 12781641 is 3 × 31 × 137437.
Since it has a total of 3 prime factors.
9 , 2 , 28 , 18 , 574 , 387 , 6130 , 268 , 20789 , 75166 , 763465 , 285671 , 7153201 , 4082830 , 13538651 , 95410808 , 856819026 , 678335146 , 7055955821 , 1940138454
n×2
25563282
n×3
38344923
n×4
51126564
n×5
63908205
n÷2
6390820.5
n÷3
4260547
n÷3
3195410.25
n÷5
2556328.2
n2
163370346652881
n3
2.0881411209627E+21
n4
2.6689870165483E+28
n5
3.4114033879181E+35
2 √n
3575.1420950782
3 √n
233.80952795817
4 √n
59.792491962438
5 √n
26.382583604222
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
-12781640
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 12781641 can be divided by 8 positive divisors.
The sum of these divisors (counting 12781641) is 1, the average is 0.125.
Base
System
Value
2
Binary
110000110000100001001001
3
Ternary
220001101010010
4
Quaternary
300300201021
5
Quinary
11233003031
6
Senary
1133542133
8
Octal
60604111
10
Decimal
12781641
12
Duodecimal
4344949
16
Hexadecimal
c30849
20
Vigesimal
3jhe21
36
Base36
7lydl
md5
7e09ac8a0a1272b6328798bf5f542962
sha1
bc1fa2aae3b5ad4908ba2b606af766b3303c854c
sha256
cf601b98d27a69c068d61099efb44d6bd9d0fc5cd3fd4188dc7d13100522aefb
sha512
dc24f60aeffbc2cb4f4a5b4b4c4dcc71e479cba41938851b209cdd58c088ab719a3c72a84d7bea12dac67dc73d2075f2cf682be4e9d1c8e30fe8f5475d5ec0d5
ripemd-160
c01a7165053f3aed82fc1b5e5ca27784fa8fc8b9
Diameter
25563282
Circumference
80309418.932844
Area
5.1324308085911E+14
Volume
8.7467850737001E+21
Surface area
2.0529723234364E+15
Circumference
80309418.932844
Perimeter
51126564
Area
163370346652881
Diagonal
18075970.051584
Surface area
980222079917286
Volume
2.0881411209627E+21
Space diagonal
22138451.616105
Perimeter
38344923
Area
70741435213232
Altitude
11069225.808053
Surface area
70741435213232
Volume
2.4608979111786E+20
Height
6025323.350528