18993903 is an odd 8-digits composite number following 18993902
and preceding 18993904 . In scientific notation, it is written as 1.8993903 × 10^7.
The sum of its digits is 42. It has a total of 2 prime factors and 4 positive divisors.
There are 12662600 positive integers (up to 18993903) that are relatively prime to 18993903.
18993903 has 4 divisors, whose sum is 25325208
The reverse of 18993903 is 30939981
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 42
Digital Root 6
Name
eighteen million nine hundred ninety-three thousand nine hundred three
Scientific notation
1.8993903 × 10^7
Engineering notation
1.8993903 × 10^6
Prime Factorization
3 × 6331301
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
18993903
Product of the distinct prime numbers
The prime factorization of 18993903 is 3 × 6331301.
Since it has a total of 2 prime factors.
3 , 3 , 9 , 8 , 882 , 691 , 1152 , 2919 , 12691 , 35055 , 206746 , 435738 , 9530221 , 3319566 , 30128556 , 26470942 , 526549369 , 732074882 , 9022871336 , 648066238
n×2
37987806
n×3
56981709
n×4
75975612
n×5
94969515
n÷2
9496951.5
n÷3
6331301
n÷3
4748475.75
n÷5
3798780.6
n2
360768351173409
n3
6.8523990676577E+21
n4
1.3015380320838E+29
n5
2.4721287132211E+36
2 √n
4358.1995135606
3 √n
266.81161928377
4 √n
66.016660878604
5 √n
28.557674759677
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
-18993902
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 18993903 can be divided by 4 positive divisors.
The sum of these divisors (counting 18993903) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001000011101001011101111
3
Ternary
1022201222201220
4
Quaternary
1020131023233
5
Quinary
14330301103
6
Senary
1515034423
8
Octal
110351357
10
Decimal
18993903
12
Duodecimal
643ba13
16
Hexadecimal
121d2ef
20
Vigesimal
5ie4f3
36
Base36
bb3sf
md5
0a643952cd1a05017987c10e8576abe2
sha1
08739d2fe0a58ebceca2676a2127e62f7d224b60
sha256
8cebaef4e81e787c5b2e51e4eaaa8abfb8369f07e48f1e37de194c0bace1adfc
sha512
528c532af1186916b4a7e61258bf6ef3043e8aafdacc9d08b973d2dc599e14ac2d017fc60b2ce8d2e64ae477afb12d8ec87c1d53e01980b42e3c5f65b50d3c65
ripemd-160
3f719d7ca9d89f6aded9b742cd02777038a9f597
Diameter
37987806
Circumference
119342212.25559
Area
1.1333872016941E+15
Volume
2.8703262093892E+22
Surface area
4.5335488067763E+15
Circumference
119342212.25559
Perimeter
75975612
Area
360768351173409
Diagonal
26861435.224999
Surface area
2164610107040454
Volume
6.8523990676577E+21
Space diagonal
32898405.030035
Perimeter
56981709
Area
1.562172784988E+14
Altitude
16449202.515017
Surface area
1.562172784988E+14
Volume
8.0756297468952E+20
Height
8953811.7416663