12912221 is an odd 8-digits composite number following 12912220
and preceding 12912222 . In scientific notation, it is written as 1.2912221 × 10^7.
The sum of its digits is 20. It has a total of 3 prime factors and 8 positive divisors.
There are 10685808 positive integers (up to 12912221) that are relatively prime to 12912221.
12912221 has 8 divisors, whose sum is 15265920
The reverse of 12912221 is 12221921
Previous prime number is 7
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 20
Digital Root 2
Name
twelve million nine hundred twelve thousand two hundred twenty-one
Scientific notation
1.2912221 × 10^7
Engineering notation
1.2912221 × 10^6
Prime Factorization
29 × 7 × 63607
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
12912221
Product of the distinct prime numbers
The prime factorization of 12912221 is 29 × 7 × 63607.
Since it has a total of 3 prime factors.
9 , 1 , 20 , 20 , 152 , 750 , 1590 , 5084 , 40343 , 14384 , 919236 , 328665 , 8067285 , 9921815 , 73803268 , 21120728 , 373901634 , 691998461 , 1149511962 , 5110583895
n×2
25824442
n×3
38736663
n×4
51648884
n×5
64561105
n÷2
6456110.5
n÷3
4304073.6666667
n÷3
3228055.25
n÷5
2582444.2
n2
166725451152841
n3
2.1527958716102E+21
n4
2.7797376062118E+28
n5
3.5892586293418E+35
2 √n
3593.3579003489
3 √n
234.60304798589
4 √n
59.944623615041
5 √n
26.43627069104
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
-12912220
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 12912221 can be divided by 8 positive divisors.
The sum of these divisors (counting 12912221) is 1, the average is 0.125.
Base
System
Value
2
Binary
110001010000011001011101
3
Ternary
220022000020102
4
Quaternary
301100121131
5
Quinary
11301142341
6
Senary
1140430445
8
Octal
61203135
10
Decimal
12912221
12
Duodecimal
43a8425
16
Hexadecimal
c5065d
20
Vigesimal
40e0b1
36
Base36
7or4t
md5
6e255faa7323583eae1d3df1012e49c6
sha1
0a3a506b5174aa7e3d030f8d84d3bd5301ad869d
sha256
fc7e92f494d5e438a4093c3fdffc75c31fd1a7d68327e6d6c4c118f7d254bb94
sha512
5c0eaa6c9566e14d437b7c9ec754baaf49e33e466055bcd558e380b6599be4363d0fa9fc1d7e09666af970d9c44a12cd70c034f646f3ae35f1f1ee2a9d039f0e
ripemd-160
852a79738af1b522838c255123bd9b81215271c7
Diameter
25824442
Circumference
81129877.270256
Area
5.2378345250821E+14
Volume
9.0176102599053E+21
Surface area
2.0951338100328E+15
Circumference
81129877.270256
Perimeter
51648884
Area
166725451152841
Diagonal
18260638.058559
Surface area
1000352706917046
Volume
2.1527958716102E+21
Space diagonal
22364622.810558
Perimeter
38736663
Area
72194238077891
Altitude
11182311.405279
Surface area
72194238077891
Volume
2.5370942655433E+20
Height
6086879.3528529