18993908 is an even 8-digits composite number following 18993907
and preceding 18993909 . In scientific notation, it is written as 1.8993908 × 10^7.
The sum of its digits is 47. It has a total of 3 prime factors and 6 positive divisors.
There are 9496952 positive integers (up to 18993908) that are relatively prime to 18993908.
18993908 has 6 divisors, whose sum is 33239346
The reverse of 18993908 is 80939981
Previous prime number is 2
Is Prime? no
Number parity even
Number length 8
Sum of Digits 47
Digital Root 2
Name
eighteen million nine hundred ninety-three thousand nine hundred eight
Scientific notation
1.8993908 × 10^7
Engineering notation
1.8993908 × 10^6
Prime Factorization
2 × 2 × 4748477
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
9496954
Product of the distinct prime numbers
The prime factorization of 18993908 is 2 × 2 × 4748477.
Since it has a total of 3 prime factors.
7 , 2 , 53 , 93 , 532 , 802 , 8648 , 6133 , 44897 , 44396 , 739673 , 359755 , 1758701 , 2881508 , 42318777 , 26897475 , 149263358 , 596397539 , 655430274 , 6040423576
n×2
37987816
n×3
56981724
n×4
75975632
n×5
94969540
n÷2
9496954
n÷3
6331302.6666667
n÷3
4748477
n÷5
3798781.6
n2
360768541112464
n3
6.8524044791844E+21
n4
1.3015394025642E+29
n5
2.4721319670679E+36
2 √n
4358.200087192
3 √n
266.81164269581
4 √n
66.016665223199
5 √n
28.557676263195
6 divisors
τ
Total Divisors
6
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-18993907
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.16666666666667
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
6
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 18993908 can be divided by 6 positive divisors.
The sum of these divisors (counting 18993908) is 1, the average is 0.16666666666667.
Base
System
Value
2
Binary
1001000011101001011110100
3
Ternary
1022201222202002
4
Quaternary
1020131023310
5
Quinary
14330301113
6
Senary
1515034432
8
Octal
110351364
10
Decimal
18993908
12
Duodecimal
643ba18
16
Hexadecimal
121d2f4
20
Vigesimal
5ie4f8
36
Base36
bb3sk
md5
71f01053b1e5d98acc4e2982891c9f46
sha1
3a3d1cb726e3ddcaac6e07b5a21ee5685e49bbc1
sha256
af5810a8b8f95ccdb7b94492626852a98f1ccafb91cf2a289c18ec1d7216dcd6
sha512
d14018a67181cbca5e1dd9527228acd47fd97efeb12c683f7e4fd9cc6d23156870f3e6b724132c9465e396dcdd64f0db937487457653497350087d9da47c052e
ripemd-160
21a3cd723ac90d1717c3e6b645c028830948a9e8
Diameter
37987816
Circumference
119342243.67152
Area
1.1333877984052E+15
Volume
2.8703284761642E+22
Surface area
4.5335511936209E+15
Circumference
119342243.67152
Perimeter
75975632
Area
360768541112464
Diagonal
26861442.296067
Surface area
2164611246674784
Volume
6.8524044791844E+21
Space diagonal
32898413.690289
Perimeter
56981724
Area
1.5621736074482E+14
Altitude
16449206.845144
Surface area
1.5621736074482E+14
Volume
8.0756361244406E+20
Height
8953814.0986889