12781384 is an even 8-digits composite number following 12781383
and preceding 12781385 . In scientific notation, it is written as 1.2781384 × 10^7.
The sum of its digits is 34. It has a total of 6 prime factors and 32 positive divisors.
There are 4979520 positive integers (up to 12781384) that are relatively prime to 12781384.
12781384 has 32 divisors, whose sum is 29880000
The reverse of 12781384 is 48318721
Previous prime number is 7
Is Prime? no
Number parity even
Number length 8
Sum of Digits 34
Digital Root 7
Name
twelve million seven hundred eighty-one thousand three hundred eighty-four
Scientific notation
1.2781384 × 10^7
Engineering notation
1.2781384 × 10^6
Prime Factorization
2 × 2 × 2 × 11 × 7 × 20749
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
6
Total number of prime factors
rad
Radical
3195346
Product of the distinct prime numbers
The prime factorization of 12781384 is 2 × 2 × 2 × 11 × 7 × 20749.
Since it has a total of 6 prime factors.
3 , 7 , 18 , 48 , 74 , 544 , 5075 , 3908 , 21313 , 59306 , 126359 , 556574 , 7249674 , 756816 , 98232000 , 27667298 , 196755806 , 75777764 , 4294908608 , 4005703948
n×2
25562768
n×3
38344152
n×4
51125536
n×5
63906920
n÷2
6390692
n÷3
4260461.3333333
n÷3
3195346
n÷5
2556276.8
n2
163363776955456
n3
2.088015164958E+21
n4
2.6687723621152E+28
n5
3.4110604368781E+35
2 √n
3575.1061522702
3 √n
233.80796088105
4 √n
59.792191398795
5 √n
26.382477508635
1 , 2 , 4 , 7 , 8 , 11 , 14 , 22 , 28 , 44 , 56 , 77 , 88 , 154 , 308 , 616 , 20749 , 41498 , 82996 , 145243 , 165992 , 228239 , 290486 , 456478 , 580972 , 912956 , 1161944 , 1597673 , 1825912 , 3195346 , 6390692 , 12781384
32 divisors
τ
Total Divisors
32
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-12781383
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.03125
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
32
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 12781384 can be divided by 32 positive divisors.
The sum of these divisors (counting 12781384) is 1, the average is 0.03125.
Base
System
Value
2
Binary
110000110000011101001000
3
Ternary
220001100202121
4
Quaternary
300300131020
5
Quinary
11233001014
6
Senary
1133541024
8
Octal
60603510
10
Decimal
12781384
12
Duodecimal
4344774
16
Hexadecimal
c30748
20
Vigesimal
3jhd94
36
Base36
7ly6g
md5
62f74dc18b7cb78b6bae02cbd7d2c448
sha1
b4e70371e96b00627615734644d9941757643bac
sha256
1558eb168f2a44a9861c005a1a3765354ea3d5a8ec50c0e94bf474552c555790
sha512
33234098d44bcfa089e5ec5f931bbd5cb3ca366630f39fbee4928982a8b2fec3edb5144c490a9a25e4fb1d5e8a5b26b48f150075d2eba197b6a49efc8f10c783
ripemd-160
d464847ae926904a152932c265810710f2a2ef5e
Diameter
25562768
Circumference
80307804.15422
Area
5.1322244154594E+14
Volume
8.7462574704217E+21
Surface area
2.0528897661838E+15
Circumference
80307804.15422
Perimeter
51125536
Area
163363776955456
Diagonal
18075606.598698
Surface area
980182661732736
Volume
2.088015164958E+21
Space diagonal
22138006.479048
Perimeter
38344152
Area
70738590450800
Altitude
11069003.239524
Surface area
70738590450800
Volume
2.4607494706036E+20
Height
6025202.1995662