18285989 is an odd 8-digits composite number following 18285988
and preceding 18285990 . In scientific notation, it is written as 1.8285989 × 10^7.
The sum of its digits is 50. It has a total of 3 prime factors and 8 positive divisors.
There are 17249760 positive integers (up to 18285989) that are relatively prime to 18285989.
18285989 has 8 divisors, whose sum is 19344192
The reverse of 18285989 is 98958281
Previous prime number is 73
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 50
Digital Root 5
Name
eighteen million two hundred eighty-five thousand nine hundred eighty-nine
Scientific notation
1.8285989 × 10^7
Engineering notation
1.8285989 × 10^6
Prime Factorization
23 × 73 × 10891
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
18285989
Product of the distinct prime numbers
The prime factorization of 18285989 is 23 × 73 × 10891.
Since it has a total of 3 prime factors.
1 , 1 , 21 , 76 , 418 , 264 , 4959 , 7550 , 79594 , 21970 , 540685 , 384392 , 6075070 , 1176941 , 29640136 , 42800315 , 638373373 , 35670042 , 9274086197 , 7119122107
n×2
36571978
n×3
54857967
n×4
73143956
n×5
91429945
n÷2
9142994.5
n÷3
6095329.6666667
n÷3
4571497.25
n÷5
3657197.8
n2
334377393708121
n3
6.1144213431954E+21
n4
1.1180824142304E+29
n5
2.044524272771E+36
2 √n
4276.2119919387
3 √n
263.45482172248
4 √n
65.392751830296
5 √n
28.341556049513
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-18285988
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 18285989 can be divided by 8 positive divisors.
The sum of these divisors (counting 18285989) is 1, the average is 0.125.
Base
System
Value
2
Binary
1000101110000010110100101
3
Ternary
1021102000122212
4
Quaternary
1011300112211
5
Quinary
14140122424
6
Senary
1451533205
8
Octal
105602645
10
Decimal
18285989
12
Duodecimal
615a205
16
Hexadecimal
11705a5
20
Vigesimal
5e5ej9
36
Base36
avxk5
md5
2bde6fd87815542246fdb082e6b3b949
sha1
50852551a3ad32b86dd83e59a9a50c13963e91a8
sha256
befff01448c3c4d8c57acf8cc3f6e60e975c88fbee6e99abe048c7b748f5feca
sha512
1f5e38398a74f9f5c0ab1b1ca11abd755e2241a5d4baafc7cf35897bfe185c3bb05f51a0b52a3d54a7f99631eda015da18e46d2f4e43811cd2ac878d8a89a6e5
ripemd-160
a674abbde52f121155c2eca3e9ab5020fe42f7fb
Diameter
36571978
Circumference
114894257.41205
Area
1.0504775635999E+15
Volume
2.5612028230314E+22
Surface area
4.2019102543997E+15
Circumference
114894257.41205
Perimeter
73143956
Area
334377393708121
Diagonal
25860293.645205
Surface area
2006264362248726
Volume
6.1144213431954E+21
Space diagonal
31672262.014646
Perimeter
54857967
Area
1.4478965870123E+14
Altitude
15836131.007323
Surface area
1.4478965870123E+14
Volume
7.2059146580087E+20
Height
8620097.8817351