18993900 is an even 8-digits composite number following 18993899
and preceding 18993901 . In scientific notation, it is written as 1.8993900 × 10^7.
The sum of its digits is 39. It has a total of 4 prime factors and 12 positive divisors.
There are 5064960 positive integers (up to 18993900) that are relatively prime to 18993900.
18993900 has 12 divisors, whose sum is 33683048
The reverse of 18993900 is 00939981
Previous prime number is 75
Is Prime? no
Number parity even
Number length 8
Sum of Digits 39
Digital Root 3
Name
eighteen million nine hundred ninety-three thousand nine hundred
Scientific notation
1.8993900 × 10^7
Engineering notation
1.8993900 × 10^6
Prime Factorization
2 × 2 × 75 × 63313
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
9496950
Product of the distinct prime numbers
The prime factorization of 18993900 is 2 × 2 × 75 × 63313.
Since it has a total of 4 prime factors.
3 , 4 , 75 , 13 , 266 , 136 , 2158 , 2064 , 49164 , 1623 , 501387 , 276882 , 6526281 , 4781436 , 12655408 , 29409938 , 921684367 , 235394315 , 8058453427 , 1626261775
n×2
37987800
n×3
56981700
n×4
75975600
n×5
94969500
n÷2
9496950
n÷3
6331300
n÷3
4748475
n÷5
3798780
n2
360768237210000
n3
6.852395820743E+21
n4
1.3015372097961E+29
n5
2.4721267609146E+36
2 √n
4358.1991693818
3 √n
266.81160523655
4 √n
66.016658271847
5 √n
28.557673857566
1 , 2 , 4 , 75 , 150 , 300 , 63313 , 126626 , 253252 , 4748475 , 9496950 , 18993900
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
-18993899
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 18993900 can be divided by 12 positive divisors.
The sum of these divisors (counting 18993900) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
1001000011101001011101100
3
Ternary
1022201222201210
4
Quaternary
1020131023230
5
Quinary
14330301100
6
Senary
1515034420
8
Octal
110351354
10
Decimal
18993900
12
Duodecimal
643ba10
16
Hexadecimal
121d2ec
20
Vigesimal
5ie4f0
36
Base36
bb3sc
md5
2becb8f7c187a63bdc51977a94c0f8c5
sha1
398ea2c1f5052f6334df8555162378cebd1aa366
sha256
fcb2fa5b041a6ed566c23c3dc8235c97853414f8baa1706626fec6c8659d187a
sha512
26c7dc6b08bd22633ea1ee38a4902d03d4ca1b1d16733d1b7105d41a9486f2e9123c89fe02805a7a951de137602384e4ab776b7c9683c590b8f015c614459b38
ripemd-160
3470890d694452f8d2a23d25b90370973f4a4434
Diameter
37987800
Circumference
119342193.40604
Area
1.1333868436675E+15
Volume
2.8703248493248E+22
Surface area
4.5335473746699E+15
Circumference
119342193.40604
Perimeter
75975600
Area
360768237210000
Diagonal
26861430.982358
Surface area
2164609423260000
Volume
6.852395820743E+21
Space diagonal
32898399.833882
Perimeter
56981700
Area
1.562172291512E+14
Altitude
16449199.916941
Surface area
1.562172291512E+14
Volume
8.0756259203696E+20
Height
8953810.3274528