12821979 is an odd 8-digits composite number following 12821978
and preceding 12821980 . In scientific notation, it is written as 1.2821979 × 10^7.
The sum of its digits is 39. It has a total of 3 prime factors and 8 positive divisors.
There are 8098056 positive integers (up to 12821979) that are relatively prime to 12821979.
12821979 has 8 divisors, whose sum is 17995840
The reverse of 12821979 is 97912821
Previous prime number is 19
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 39
Digital Root 3
Name
twelve million eight hundred twenty-one thousand nine hundred seventy-nine
Scientific notation
1.2821979 × 10^7
Engineering notation
1.2821979 × 10^6
Prime Factorization
3 × 19 × 224947
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
12821979
Product of the distinct prime numbers
The prime factorization of 12821979 is 3 × 19 × 224947.
Since it has a total of 3 prime factors.
6 , 5 , 100 , 21 , 230 , 381 , 637 , 4493 , 66647 , 2756 , 105039 , 965535 , 9980992 , 3275140 , 64773593 , 1159257 , 524006409 , 66392762 , 7073468769 , 7056149637
n×2
25643958
n×3
38465937
n×4
51287916
n×5
64109895
n÷2
6410989.5
n÷3
4273993
n÷3
3205494.75
n÷5
2564395.8
n2
164403145476441
n3
2.1079736788329E+21
n4
2.7028394242548E+28
n5
3.4655750338167E+35
2 √n
3580.7791051669
3 √n
234.05523204961
4 √n
59.839611505815
5 √n
26.399214954644
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
-12821978
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 12821979 can be divided by 8 positive divisors.
The sum of these divisors (counting 12821979) is 1, the average is 0.125.
Base
System
Value
2
Binary
110000111010010111011011
3
Ternary
220010102110010
4
Quaternary
300322113123
5
Quinary
11240300404
6
Senary
1134453003
8
Octal
60722733
10
Decimal
12821979
12
Duodecimal
4364163
16
Hexadecimal
c3a5db
20
Vigesimal
402eij
36
Base36
7mti3
md5
339c43f1cfe1f55bd3c98babd742208c
sha1
3e81d5cc87a13248ac8158680381531282f8ac94
sha256
211a532864cc7e947de8cf519ba928b03ff31e8b7918b7b69a3f27e6069444b8
sha512
bcff991cbb1e50ffe2d7925584c62b1d11c580d7e180ace52f39cb0d1f6c422904c5daf795b3d754a5522437ac5d08cc0871b74df25875f959d8e250f6df918c
ripemd-160
801c3ac37c5533a88435be0c4ea11adbbcd80793
Diameter
25643958
Circumference
80562870.061765
Area
5.1648771405584E+14
Volume
8.8298594978427E+21
Surface area
2.0659508562234E+15
Circumference
80562870.061765
Perimeter
51287916
Area
164403145476441
Diagonal
18133016.598263
Surface area
986418872858646
Volume
2.1079736788329E+21
Space diagonal
22208319.081581
Perimeter
38465937
Area
71188650222333
Altitude
11104159.540791
Surface area
71188650222333
Volume
2.4842708047758E+20
Height
6044338.8660877