12721871 is an odd 8-digits composite number following 12721870
and preceding 12721872 . In scientific notation, it is written as 1.2721871 × 10^7.
The sum of its digits is 29. It has a total of 2 prime factors and 4 positive divisors.
There are 12657744 positive integers (up to 12721871) that are relatively prime to 12721871.
12721871 has 4 divisors, whose sum is 12786000
The reverse of 12721871 is 17812721
Previous prime number is 199
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 29
Digital Root 2
Name
twelve million seven hundred twenty-one thousand eight hundred seventy-one
Scientific notation
1.2721871 × 10^7
Engineering notation
1.2721871 × 10^6
Prime Factorization
199 × 63929
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
12721871
Product of the distinct prime numbers
The prime factorization of 12721871 is 199 × 63929.
Since it has a total of 2 prime factors.
6 , 9 , 69 , 60 , 669 , 782 , 6105 , 1133 , 66797 , 77772 , 851679 , 982956 , 1886933 , 4381270 , 43493781 , 8271130 , 210327360 , 463633174 , 2850662401 , 5069202897
n×2
25443742
n×3
38165613
n×4
50887484
n×5
63609355
n÷2
6360935.5
n÷3
4240623.6666667
n÷3
3180467.75
n÷5
2544374.2
n2
161846001740641
n3
2.0589839560102E+21
n4
2.6194128279432E+28
n5
3.3323832092838E+35
2 √n
3566.7731915556
3 √n
233.44450869833
4 √n
59.722468063164
5 √n
26.357863071315
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
-12721870
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 12721871 can be divided by 4 positive divisors.
The sum of these divisors (counting 12721871) is 1, the average is 0.25.
Base
System
Value
2
Binary
110000100001111011001111
3
Ternary
212221100010102
4
Quaternary
300201323033
5
Quinary
11224044441
6
Senary
1132401315
8
Octal
60417317
10
Decimal
12721871
12
Duodecimal
431623b
16
Hexadecimal
c21ecf
20
Vigesimal
3ja4db
36
Base36
7ko9b
md5
de074ae1cd63a8b5be286359a0b9af25
sha1
4b8c009a700689b8c4d150c0eba1ae03dca793c9
sha256
70626a3d38e970292f475792cf7b3c8fa54245112532dc578de1edf8ae3d8a32
sha512
241ae9075c1006d82758ef70856c307f9fe8f52f7d2e05cfba93386aa0fe29ec5202b1b1a46fc0e0ef36e6d237d7fe4fd5ab1416926fc82ad866212d98a15102
ripemd-160
46015e034c622abc2be4c6860fc64d0bfffe5220
Diameter
25443742
Circumference
79933872.947034
Area
5.0845421008128E+14
Volume
8.6246518267479E+21
Surface area
2.0338168403251E+15
Circumference
79933872.947034
Perimeter
50887484
Area
161846001740641
Diagonal
17991442.506961
Surface area
971076010443846
Volume
2.0589839560102E+21
Space diagonal
22034926.939337
Perimeter
38165613
Area
70081374504168
Altitude
11017463.469669
Surface area
70081374504168
Volume
2.4265358627485E+20
Height
5997147.5023203