12821081 is an odd 8-digits composite number following 12821080
and preceding 12821082 . In scientific notation, it is written as 1.2821081 × 10^7.
The sum of its digits is 23. It has a total of 3 prime factors and 8 positive divisors.
There are 10144080 positive integers (up to 12821081) that are relatively prime to 12821081.
12821081 has 8 divisors, whose sum is 15779904
The reverse of 12821081 is 18012821
Previous prime number is 7
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 23
Digital Root 5
Name
twelve million eight hundred twenty-one thousand eighty-one
Scientific notation
1.2821081 × 10^7
Engineering notation
1.2821081 × 10^6
Prime Factorization
13 × 7 × 140891
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
12821081
Product of the distinct prime numbers
The prime factorization of 12821081 is 13 × 7 × 140891.
Since it has a total of 3 prime factors.
2 , 3 , 69 , 55 , 899 , 340 , 7522 , 6872 , 46553 , 53769 , 213677 , 526376 , 2384525 , 7655993 , 52094378 , 18959704 , 281129234 , 453419700 , 4068243863 , 5108777326
n×2
25642162
n×3
38463243
n×4
51284324
n×5
64105405
n÷2
6410540.5
n÷3
4273693.6666667
n÷3
3205270.25
n÷5
2564216.2
n2
164380118008561
n3
2.1075308077773E+21
n4
2.7020823196508E+28
n5
3.4643616288911E+35
2 √n
3580.6537112656
3 √n
234.04976782537
4 √n
59.838563746681
5 √n
26.39884516525
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
-12821080
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 12821081 can be divided by 8 positive divisors.
The sum of these divisors (counting 12821081) is 1, the average is 0.125.
Base
System
Value
2
Binary
110000111010001001011001
3
Ternary
220010101012212
4
Quaternary
300322021121
5
Quinary
11240233311
6
Senary
1134444505
8
Octal
60721131
10
Decimal
12821081
12
Duodecimal
4363735
16
Hexadecimal
c3a259
20
Vigesimal
402ce1
36
Base36
7mst5
md5
7787fd75c8b69da83158a41c0368c5f8
sha1
ec413000376ba23a870e654f9b52550d0f6be0fc
sha256
0fd329618ca0a787011d5c5ca56af0ff1a8d31b132111ab914219693d58fb5e2
sha512
17c4a0f850c8255ab386bc37efb339d9bacda5bbba772427ac694209af95629683a039b86dfc0d7592fddc2f5c388d2df5f5f02d7a5d28ec77583fcca96be874
ripemd-160
5b7434d859db6b97c952535ef3c2866123b751ab
Diameter
25642162
Circumference
80557227.761359
Area
5.1641537113192E+14
Volume
8.8280044039032E+21
Surface area
2.0656614845277E+15
Circumference
80557227.761359
Perimeter
51284324
Area
164380118008561
Diagonal
18131746.634484
Surface area
986280708051366
Volume
2.1075308077773E+21
Space diagonal
22206763.699956
Perimeter
38463243
Area
71178679036249
Altitude
11103381.849978
Surface area
71178679036249
Volume
2.4837488762315E+20
Height
6043915.544828