12782721 is an odd 8-digits composite number following 12782720
and preceding 12782722 . In scientific notation, it is written as 1.2782721 × 10^7.
The sum of its digits is 30. It has a total of 3 prime factors and 8 positive divisors.
There are 7304400 positive integers (up to 12782721) that are relatively prime to 12782721.
12782721 has 8 divisors, whose sum is 19478464
The reverse of 12782721 is 12728721
Previous prime number is 7
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 30
Digital Root 3
Name
twelve million seven hundred eighty-two thousand seven hundred twenty-one
Scientific notation
1.2782721 × 10^7
Engineering notation
1.2782721 × 10^6
Prime Factorization
3 × 7 × 608701
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
12782721
Product of the distinct prime numbers
The prime factorization of 12782721 is 3 × 7 × 608701.
Since it has a total of 3 prime factors.
6 , 8 , 96 , 70 , 659 , 799 , 2922 , 8636 , 84443 , 80523 , 230932 , 635750 , 984439 , 3141757 , 70748241 , 12126118 , 48338122 , 383650773 , 1543827366 , 7963161463
n×2
25565442
n×3
38348163
n×4
51130884
n×5
63913605
n÷2
6391360.5
n÷3
4260907
n÷3
3195680.25
n÷5
2556544.2
n2
163397956163841
n3
2.0886704856126E+21
n4
2.6698892078521E+28
n5
3.4128448844884E+35
2 √n
3575.2931348352
3 √n
233.816113111
4 √n
59.793754981898
5 √n
26.383029434727
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
-12782720
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 12782721 can be divided by 8 positive divisors.
The sum of these divisors (counting 12782721) is 1, the average is 0.125.
Base
System
Value
2
Binary
110000110000110010000001
3
Ternary
220001102121010
4
Quaternary
300300302001
5
Quinary
11233021341
6
Senary
1133551133
8
Octal
60606201
10
Decimal
12782721
12
Duodecimal
43454a9
16
Hexadecimal
c30c81
20
Vigesimal
3jhgg1
36
Base36
7lz7l
md5
8d88fe1857b8a9e1263ff09d59447527
sha1
b30321cbd5258c37941ba850341116dfc4a8a7c9
sha256
a828c148914145cf1910aec6394e8acb9a5a75c47797fe8116ab50612755e934
sha512
4a0ad591081c7a30bb33357dea989ea4fad5d1338a28b257fb3de56b7d8d71c3b203632d78d237971fbc03a9393f67a6d7c29831a9dd670f35984f4c943922cb
ripemd-160
904b184ebb9ce7b07902e488e943c311222b5389
Diameter
25565442
Circumference
80316204.772976
Area
5.1332981869591E+14
Volume
8.7490024711605E+21
Surface area
2.0533192747836E+15
Circumference
80316204.772976
Perimeter
51130884
Area
163397956163841
Diagonal
18077497.402231
Surface area
980387736983046
Volume
2.0886704856126E+21
Space diagonal
22140322.230978
Perimeter
38348163
Area
70753390482171
Altitude
11070161.115489
Surface area
70753390482171
Volume
2.4615217734015E+20
Height
6025832.4674105