18668748 is an even 8-digits composite number following 18668747
and preceding 18668749 . In scientific notation, it is written as 1.8668748 × 10^7.
The sum of its digits is 48. It has a total of 4 prime factors and 12 positive divisors.
There are 5333904 positive integers (up to 18668748) that are relatively prime to 18668748.
18668748 has 12 divisors, whose sum is 34226192
The reverse of 18668748 is 84786681
Previous prime number is 21
Is Prime? no
Number parity even
Number length 8
Sum of Digits 48
Digital Root 3
Name
eighteen million six hundred sixty-eight thousand seven hundred forty-eight
Scientific notation
1.8668748 × 10^7
Engineering notation
1.8668748 × 10^6
Prime Factorization
2 × 2 × 21 × 222247
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
9334374
Product of the distinct prime numbers
The prime factorization of 18668748 is 2 × 2 × 21 × 222247.
Since it has a total of 4 prime factors.
5 , 3 , 48 , 59 , 779 , 765 , 3475 , 6850 , 43580 , 93863 , 475482 , 304979 , 9675406 , 6517462 , 96599301 , 45100525 , 676908714 , 569022417 , 6179848283 , 3091578151
n×2
37337496
n×3
56006244
n×4
74674992
n×5
93343740
n÷2
9334374
n÷3
6222916
n÷3
4667187
n÷5
3733749.6
n2
348522151887504
n3
6.5064722260055E+21
n4
1.214676903563E+29
n5
2.2676497014037E+36
2 √n
4320.7346597541
3 √n
265.28033937954
4 √n
65.732295409137
5 √n
28.459222998573
1 , 2 , 4 , 21 , 42 , 84 , 222247 , 444494 , 888988 , 4667187 , 9334374 , 18668748
12 divisors
τ
Total Divisors
12
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-18668747
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.083333333333333
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
12
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 18668748 can be divided by 12 positive divisors.
The sum of these divisors (counting 18668748) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
1000111001101110011001100
3
Ternary
1022010110201010
4
Quaternary
1013031303030
5
Quinary
14234344443
6
Senary
1504045220
8
Octal
107156314
10
Decimal
18668748
12
Duodecimal
6303810
16
Hexadecimal
11cdccc
20
Vigesimal
5gdbh8
36
Base36
b44wc
md5
893c4e7830767e6a8358aa50e89cbca6
sha1
bca949688577544d2e3a582eba60dbe4ab04312b
sha256
bd9771772fdf274754c74b976ef00c1092ad8015f53ad83f20ba0cc7d1223d41
sha512
b1f1269c6cbe78505583b1a04e0b3a10cb02ad6205b66a412c08a89d2d063cd3edde60a1c9663774fb953a93cbe3265c1116504d1db375c5dc96a8b18aac7144
ripemd-160
4c30af6ebc26f417e174c5446cf192d3bb0eb049
Diameter
37337496
Circumference
117299203.13704
Area
1.0949146319831E+15
Volume
2.7254247128007E+22
Surface area
4.3796585279324E+15
Circumference
117299203.13704
Perimeter
74674992
Area
348522151887504
Diagonal
26401596.614126
Surface area
2091132911325024
Volume
6.5064722260055E+21
Space diagonal
32335220.0497
Perimeter
56006244
Area
1.509145186581E+14
Altitude
16167610.02485
Surface area
1.509145186581E+14
Volume
7.6679510543507E+20
Height
8800532.2047085