18993893 is an odd 8-digits composite number following 18993892
and preceding 18993894 . In scientific notation, it is written as 1.8993893 × 10^7.
The sum of its digits is 50. It has a total of 2 prime factors and 4 positive divisors.
There are 18983328 positive integers (up to 18993893) that are relatively prime to 18993893.
18993893 has 4 divisors, whose sum is 19004460
The reverse of 18993893 is 39839981
Previous prime number is 8269
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 50
Digital Root 5
Name
eighteen million nine hundred ninety-three thousand eight hundred ninety-three
Scientific notation
1.8993893 × 10^7
Engineering notation
1.8993893 × 10^6
Prime Factorization
8269 × 2297
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
18993893
Product of the distinct prime numbers
The prime factorization of 18993893 is 8269 × 2297.
Since it has a total of 2 prime factors.
6 , 6 , 82 , 42 , 906 , 508 , 4835 , 2603 , 7198 , 84525 , 873303 , 625186 , 2526978 , 2629047 , 30950748 , 9522298 , 344685922 , 63418893 , 1347322061 , 2612742010
n×2
37987786
n×3
56981679
n×4
75975572
n×5
94969465
n÷2
9496946.5
n÷3
6331297.6666667
n÷3
4748473.25
n÷5
3798778.6
n2
360767971295449
n3
6.8523882446128E+21
n4
1.3015352911263E+29
n5
2.4721222055378E+36
2 √n
4358.1983662977
3 √n
266.81157245968
4 √n
66.016652189411
5 √n
28.55767175264
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
-18993892
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 18993893 can be divided by 4 positive divisors.
The sum of these divisors (counting 18993893) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001000011101001011100101
3
Ternary
1022201222201112
4
Quaternary
1020131023211
5
Quinary
14330301033
6
Senary
1515034405
8
Octal
110351345
10
Decimal
18993893
12
Duodecimal
643ba05
16
Hexadecimal
121d2e5
20
Vigesimal
5ie4ed
36
Base36
bb3s5
md5
1f620a59247ccde9e3e39575e5b5dfdb
sha1
3159310124a678043041dfcf2e5b29c97f6cad4b
sha256
517acadd7834c8f2675bb517ef5549dd149fddad74ac2989e8e1232722a3a3c0
sha512
0a54cc0bb8d44a6cbd01c7ff37dda5c5e4adc4e9aec2c36cae4affaba40c205b7a62834055d75c1d3bf772cbbcf5fa827ac049d32eab5dbfd7bc0a1a30960900
ripemd-160
2c14451cc6cac9da368c78967202647af2f77e5a
Diameter
37987786
Circumference
119342149.42374
Area
1.1333860082723E+15
Volume
2.8703216758428E+22
Surface area
4.5335440330891E+15
Circumference
119342149.42374
Perimeter
75975572
Area
360767971295449
Diagonal
26861421.082863
Surface area
2164607827772694
Volume
6.8523882446128E+21
Space diagonal
32898387.709527
Perimeter
56981679
Area
1.5621711400682E+14
Altitude
16449193.854763
Surface area
1.5621711400682E+14
Volume
8.0756169918145E+20
Height
8953807.0276211