12897218 is an even 8-digits composite number following 12897217
and preceding 12897219 . In scientific notation, it is written as 1.2897218 × 10^7.
The sum of its digits is 38. It has a total of 2 prime factors and 4 positive divisors.
There are 6448608 positive integers (up to 12897218) that are relatively prime to 12897218.
12897218 has 4 divisors, whose sum is 19345830
The reverse of 12897218 is 81279821
Previous prime number is 2
Is Prime? no
Number parity even
Number length 8
Sum of Digits 38
Digital Root 2
Name
twelve million eight hundred ninety-seven thousand two hundred eighteen
Scientific notation
1.2897218 × 10^7
Engineering notation
1.2897218 × 10^6
Prime Factorization
2 × 6448609
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
12897218
Product of the distinct prime numbers
The prime factorization of 12897218 is 2 × 6448609.
Since it has a total of 2 prime factors.
3 , 7 , 20 , 22 , 156 , 769 , 1281 , 5506 , 89915 , 11842 , 282301 , 787879 , 3415306 , 2742877 , 42643132 , 83412609 , 221704321 , 156611962 , 2033519027 , 724068785
n×2
25794436
n×3
38691654
n×4
51588872
n×5
64486090
n÷2
6448609
n÷3
4299072.6666667
n÷3
3224304.5
n÷5
2579443.6
n2
166338232139524
n3
2.145300441638E+21
n4
2.7668407471302E+28
n5
3.5684548287021E+35
2 √n
3591.2696919056
3 √n
234.51214925166
4 √n
59.927203271183
5 √n
26.430124454292
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
-12897217
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 12897218 can be divided by 4 positive divisors.
The sum of these divisors (counting 12897218) is 1, the average is 0.25.
Base
System
Value
2
Binary
110001001100101111000010
3
Ternary
220021020122202
4
Quaternary
301030233002
5
Quinary
11300202333
6
Senary
1140233202
8
Octal
61145702
10
Decimal
12897218
12
Duodecimal
439b802
16
Hexadecimal
c4cbc2
20
Vigesimal
40c30i
36
Base36
7ofk2
md5
263df1dc682581448b19fc9a34cfa428
sha1
b5083876b8620b3608bc15ac52c1add909f74c99
sha256
297d0666ec23ce7eac25aafbc63cf027e017a50d891cf0147dccf9817ef919d3
sha512
c56093b645daa7cc909edb53a78937c9e7be7f08f263c087bef2ffa94374b2605acf72a71444994b3f3069ea1fde2c9755391509548fb57ab8d603da7d124223
ripemd-160
1a04c8f1ac0a88f8d887f33ea6489464eb82cce3
Diameter
25794436
Circumference
81035610.641092
Area
5.2256696810064E+14
Volume
8.9862134762574E+21
Surface area
2.0902678724026E+15
Circumference
81035610.641092
Perimeter
51588872
Area
166338232139524
Diagonal
18239420.612482
Surface area
998029392837144
Volume
2.145300441638E+21
Space diagonal
22338636.852292
Perimeter
38691654
Area
72026567326710
Altitude
11169318.426146
Surface area
72026567326710
Volume
2.5282608166079E+20
Height
6079806.8708275