12691818 is an even 8-digits composite number following 12691817
and preceding 12691819 . In scientific notation, it is written as 1.2691818 × 10^7.
The sum of its digits is 36. It has a total of 5 prime factors and 24 positive divisors.
There are 4170600 positive integers (up to 12691818) that are relatively prime to 12691818.
12691818 has 24 divisors, whose sum is 27889056
The reverse of 12691818 is 81819621
Previous prime number is 71
Is Prime? no
Number parity even
Number length 8
Sum of Digits 36
Digital Root 9
Name
twelve million six hundred ninety-one thousand eight hundred eighteen
Scientific notation
1.2691818 × 10^7
Engineering notation
1.2691818 × 10^6
Prime Factorization
2 × 3 × 3 × 71 × 9931
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
4230606
Product of the distinct prime numbers
The prime factorization of 12691818 is 2 × 3 × 3 × 71 × 9931.
Since it has a total of 5 prime factors.
7 , 9 , 25 , 78 , 22 , 141 , 8241 , 8647 , 23394 , 95052 , 971190 , 490264 , 4707008 , 2867734 , 28219177 , 71185596 , 209987631 , 117762384 , 692548492 , 7987778088
n×2
25383636
n×3
38075454
n×4
50767272
n×5
63459090
n÷2
6345909
n÷3
4230606
n÷3
3172954.5
n÷5
2538363.6
n2
161082244145124
n3
2.0444265257215E+21
n4
2.5947489378829E+28
n5
3.2932081275303E+35
2 √n
3562.557789005
3 √n
233.26054101237
4 √n
59.687166032615
5 √n
26.345398199963
1 , 2 , 3 , 6 , 9 , 18 , 71 , 142 , 213 , 426 , 639 , 1278 , 9931 , 19862 , 29793 , 59586 , 89379 , 178758 , 705101 , 1410202 , 2115303 , 4230606 , 6345909 , 12691818
24 divisors
τ
Total Divisors
24
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-12691817
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.041666666666667
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
24
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 12691818 can be divided by 24 positive divisors.
The sum of these divisors (counting 12691818) is 1, the average is 0.041666666666667.
Base
System
Value
2
Binary
110000011010100101101010
3
Ternary
212212210220100
4
Quaternary
300122211222
5
Quinary
11222114233
6
Senary
1132010230
8
Octal
60324552
10
Decimal
12691818
12
Duodecimal
4300976
16
Hexadecimal
c1a96a
20
Vigesimal
3j69ai
36
Base36
7k12i
md5
78863798415461fa47068fbdc7a0f2da
sha1
a247b78881f84d81751bc7b5f7b996e9e202b08e
sha256
2e1a0876030ad43f7c9cec13db6befb90c4eb5893d7da77677b80a5f08fc88e5
sha512
f80d2947a0efa13619239af48bbe5d5c6d937e61f097dc6afbb875e5af2033d466430e2299ff6e344add6f54afc95749b9061606c303de19fb27c62a58c71dad
ripemd-160
174b59ab2ab893a9959192ebce46c16b8269aa3c
Diameter
25383636
Circumference
79745044.378997
Area
5.0605479483008E+14
Volume
8.5636738053476E+21
Surface area
2.0242191793203E+15
Circumference
79745044.378997
Perimeter
50767272
Area
161082244145124
Diagonal
17948941.146771
Surface area
966493464870744
Volume
2.0444265257215E+21
Space diagonal
21982873.616417
Perimeter
38075454
Area
69750657764142
Altitude
10991436.808209
Surface area
69750657764142
Volume
2.4093797666255E+20
Height
5982980.382257