12781393 is an odd 8-digits composite number following 12781392
and preceding 12781394 . In scientific notation, it is written as 1.2781393 × 10^7.
The sum of its digits is 34. It has a total of 2 prime factors and 4 positive divisors.
There are 12369060 positive integers (up to 12781393) that are relatively prime to 12781393.
12781393 has 4 divisors, whose sum is 13193728
The reverse of 12781393 is 39318721
Previous prime number is 31
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 34
Digital Root 7
Name
twelve million seven hundred eighty-one thousand three hundred ninety-three
Scientific notation
1.2781393 × 10^7
Engineering notation
1.2781393 × 10^6
Prime Factorization
31 × 412303
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
12781393
Product of the distinct prime numbers
The prime factorization of 12781393 is 31 × 412303.
Since it has a total of 2 prime factors.
6 , 10 , 92 , 1 , 347 , 759 , 7628 , 7938 , 82571 , 98491 , 824394 , 682641 , 4148072 , 4730725 , 40233707 , 72392769 , 651766171 , 139443613 , 3129597087 , 8201784879
n×2
25562786
n×3
38344179
n×4
51125572
n×5
63906965
n÷2
6390696.5
n÷3
4260464.3333333
n÷3
3195348.25
n÷5
2556278.6
n2
163364007020449
n3
2.0880195757831E+21
n4
2.6687798789777E+28
n5
3.4110724463707E+35
2 √n
3575.1074109738
3 √n
233.80801575959
4 √n
59.792201924447
5 √n
26.382481224074
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-12781392
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 12781393 can be divided by 4 positive divisors.
The sum of these divisors (counting 12781393) is 1, the average is 0.25.
Base
System
Value
2
Binary
110000110000011101010001
3
Ternary
220001100202221
4
Quaternary
300300131101
5
Quinary
11233001033
6
Senary
1133541041
8
Octal
60603521
10
Decimal
12781393
12
Duodecimal
4344781
16
Hexadecimal
c30751
20
Vigesimal
3jhd9d
36
Base36
7ly6p
md5
9e527993443bfb96f86bef7bb0564645
sha1
d4748bd5650e251ed44e27e1247e4c9eaeef180b
sha256
18c6cdb707f7bca349e5182b3f6ea2a7233b3408bc5c647e3892cf73a2b62050
sha512
5981e470201e7a54104a4a4350922fc2adee7042c8464bb7591e687ee758bc4918b184d069c72074a5466b9ae7080888b59bb59922e1642c3977fc7e87be8684
ripemd-160
7472ca8bc4360c97ba181386ccdb3bfb65598a7c
Diameter
25562786
Circumference
80307860.702888
Area
5.1322316431643E+14
Volume
8.7462759464426E+21
Surface area
2.0528926572657E+15
Circumference
80307860.702888
Perimeter
51125572
Area
163364007020449
Diagonal
18075619.326621
Surface area
980184042122694
Volume
2.0880195757831E+21
Space diagonal
22138022.067505
Perimeter
38344179
Area
70738690071864
Altitude
11069011.033753
Surface area
70738690071864
Volume
2.4607546688108E+20
Height
6025206.4422068