12821721 is an odd 8-digits composite number following 12821720
and preceding 12821722 . In scientific notation, it is written as 1.2821721 × 10^7.
The sum of its digits is 24. It has a total of 3 prime factors and 8 positive divisors.
There are 7560000 positive integers (up to 12821721) that are relatively prime to 12821721.
12821721 has 8 divisors, whose sum is 13568584
The reverse of 12821721 is 12712821
Previous prime number is 37
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 24
Digital Root 6
Name
twelve million eight hundred twenty-one thousand seven hundred twenty-one
Scientific notation
1.2821721 × 10^7
Engineering notation
1.2821721 × 10^6
Prime Factorization
33 × 37 × 10501
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
12821721
Product of the distinct prime numbers
The prime factorization of 12821721 is 33 × 37 × 10501.
Since it has a total of 3 prime factors.
1 , 7 , 89 , 60 , 920 , 22 , 7478 , 5461 , 801 , 37979 , 403986 , 649018 , 9180266 , 8859580 , 49393381 , 75980505 , 67777677 , 344025126 , 7771249808 , 8243701269
n×2
25643442
n×3
38465163
n×4
51286884
n×5
64108605
n÷2
6410860.5
n÷3
4273907
n÷3
3205430.25
n÷5
2564344.2
n2
164396529401841
n3
2.1078464333587E+21
n4
2.702621887937E+28
n5
3.4652263815622E+35
2 √n
3580.7430793063
3 √n
234.05366217611
4 √n
59.839310484884
5 √n
26.399108714378
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
-12821720
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 12821721 can be divided by 8 positive divisors.
The sum of these divisors (counting 12821721) is 1, the average is 0.125.
Base
System
Value
2
Binary
110000111010010011011001
3
Ternary
220010102002120
4
Quaternary
300322103121
5
Quinary
11240243341
6
Senary
1134451453
8
Octal
60722331
10
Decimal
12821721
12
Duodecimal
4363b89
16
Hexadecimal
c3a4d9
20
Vigesimal
402e61
36
Base36
7mtax
md5
bb72cc90af5df523fc49ed746ff81381
sha1
903574a0cc169ae0da752293d8eab487a90dbaf4
sha256
17a4623f5bcfbe4aeb1f87f11d4487ffa8bb9ce19b612c29bad6e6a07255727a
sha512
7ed068be4257291556abeb7dfeb7a31756fe90233833f272921a679a9ab626f45aa5efd04bf1bfa69d73cb8e292a552ed8d4bf6a57af449c1ec39bae22cf5ae8
ripemd-160
220cfa76b546701511c437e51ad9082f787898fc
Diameter
25643442
Circumference
80561248.999956
Area
5.1646692904448E+14
Volume
8.8293264932469E+21
Surface area
2.0658677161779E+15
Circumference
80561248.999956
Perimeter
51286884
Area
164396529401841
Diagonal
18132651.731164
Surface area
986379176411046
Volume
2.1078464333587E+21
Space diagonal
22207872.212473
Perimeter
38465163
Area
71185785377995
Altitude
11103936.106236
Surface area
71185785377995
Volume
2.4841208445464E+20
Height
6044217.2437213