12921818 is an even 8-digits composite number following 12921817
and preceding 12921819 . In scientific notation, it is written as 1.2921818 × 10^7.
The sum of its digits is 32. It has a total of 4 prime factors and 16 positive divisors.
There are 5111856 positive integers (up to 12921818) that are relatively prime to 12921818.
12921818 has 16 divisors, whose sum is 23856000
The reverse of 12921818 is 81812921
Previous prime number is 13
Is Prime? no
Number parity even
Number length 8
Sum of Digits 32
Digital Root 5
Name
twelve million nine hundred twenty-one thousand eight hundred eighteen
Scientific notation
1.2921818 × 10^7
Engineering notation
1.2921818 × 10^6
Prime Factorization
2 × 7 × 13 × 70999
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
12921818
Product of the distinct prime numbers
The prime factorization of 12921818 is 2 × 7 × 13 × 70999.
Since it has a total of 4 prime factors.
1 , 7 , 72 , 97 , 844 , 612 , 597 , 4949 , 97700 , 16570 , 496635 , 211674 , 1190685 , 9439543 , 77994003 , 22315766 , 248114664 , 546286782 , 9398097048 , 5457718588
n×2
25843636
n×3
38765454
n×4
51687272
n×5
64609090
n÷2
6460909
n÷3
4307272.6666667
n÷3
3230454.5
n÷5
2584363.6
n2
166973380425124
n3
2.1575996326982E+21
n4
2.7880109770593E+28
n5
3.6026170427563E+35
2 √n
3594.6930327915
3 √n
234.66115644703
4 √n
59.955758962685
5 √n
26.440199271504
1 , 2 , 7 , 13 , 14 , 26 , 91 , 182 , 70999 , 141998 , 496993 , 922987 , 993986 , 1845974 , 6460909 , 12921818
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-12921817
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 12921818 can be divided by 16 positive divisors.
The sum of these divisors (counting 12921818) is 1, the average is 0.0625.
Base
System
Value
2
Binary
110001010010101111011010
3
Ternary
220022111101212
4
Quaternary
301102233122
5
Quinary
11301444233
6
Senary
1140543122
8
Octal
61225732
10
Decimal
12921818
12
Duodecimal
43b1aa2
16
Hexadecimal
c52bda
20
Vigesimal
40f4ai
36
Base36
7oyje
md5
01130b06f664e353faa323c1e443d32d
sha1
e5fe871f7eaeb8d94f730d22b8dfcf26df1c27fe
sha256
02bff6fe1c7da0848f56b037abd607de05af72cd1da6de5074acd96bcc665bab
sha512
09976f7f8af0d4fdee076d1adbbfbac12ba7b9d83bf893e78cbe5aa365a64611b4ed3f1093a26c20e9c726be65cc287af6d30a4fef6cf7d5baded567eeee3b58
ripemd-160
0eab4f1e92f9970ba84f52a07e19a0ef7551d193
Diameter
25843636
Circumference
81190176.999649
Area
5.2456234528862E+14
Volume
9.037732207297E+21
Surface area
2.0982493811545E+15
Circumference
81190176.999649
Perimeter
51687272
Area
166973380425124
Diagonal
18274210.266117
Surface area
1001840282550744
Volume
2.1575996326982E+21
Space diagonal
22381245.302158
Perimeter
38765454
Area
72301594601960
Altitude
11190622.651079
Surface area
72301594601960
Volume
2.5427555522775E+20
Height
6091403.4220389