18385890 is an even 8-digits composite number following 18385889
and preceding 18385891 . In scientific notation, it is written as 1.8385890 × 10^7.
The sum of its digits is 42. It has a total of 5 prime factors and 32 positive divisors.
There are 4880640 positive integers (up to 18385890) that are relatively prime to 18385890.
18385890 has 32 divisors, whose sum is 44326656
The reverse of 18385890 is 09858381
Previous prime number is 241
Is Prime? no Number parity even Number length 8 Sum of Digits 42 Digital Root 6
Name
eighteen million three hundred eighty-five thousand eight hundred ninety
Scientific notation
1.8385890 × 10^7
Engineering notation
1.8385890 × 10^6
Prime Factorization
2 × 3 × 5 × 241 × 2543
Composite number
ω Distinct Factors
5 Total number of distinct prime factors
Ω Total Factors
5 Total number of prime factors
rad Radical
18385890 Product of the distinct prime numbers
The prime factorization of 18385890 is 2 × 3 × 5 × 241 × 2543.
Since it has a total of 5 prime factors.
9 , 10 , 12 , 33 , 5 , 451 , 6274 , 8992 , 52977 , 8832 , 735544 , 537379 , 4627332 , 4890545 , 59379151 , 25776130 , 435079991 , 82055993 , 1035825108 , 4599649971
n×2
36771780
n×3
55157670
n×4
73543560
n×5
91929450
n÷2
9192945
n÷3
6128630
n÷3
4596472.5
n÷5
3677178
n2
338040951092100
n3
6.2151837422747E+21
n4
1.1427168461525E+29
n5
2.1009866234507E+36
2 √n4287.8770971193
3 √n263.93372418046
4 √n65.481883732215
5 √n28.372456020441
1 , 2 , 3 , 5 , 6 , 10 , 15 , 30 , 241 , 482 , 723 , 1205 , 1446 , 2410 , 2543 , 3615 , 5086 , 7230 , 7629 , 12715 , 15258 , 25430 , 38145 , 76290 , 612863 , 1225726 , 1838589 , 3064315 , 3677178 , 6128630 , 9192945 , 18385890
32 divisors
τ Total Divisors
32 Total number of the positive divisors of n
σ Sum of Divisors
1 Sum of all the positive divisors of n
s Aliquot Sum
-18385889 Sum of the proper positive divisors of n
A Arithmetic Mean
0.03125 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
32 Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 18385890 can be divided by 32 positive divisors.
The sum of these divisors (counting 18385890) is 1, the average is 0.03125.
Base
System
Value
2
Binary
1000110001000101111100010
3
Ternary
1021121002200220
4
Quaternary
1012020233202
5
Quinary
14201322030
6
Senary
1454023510
8
Octal
106105742
10
Decimal
18385890
12
Duodecimal
61a7b96
16
Hexadecimal
1188be2
20
Vigesimal
5ei4ea
36
Base36
ay2n6
md5
cd40d06a6b0a05ded709aa3024e0d9c5
sha1
5858003c354dffe27a83f88ea98641d197c9d9c2
sha256
d71bb99b035f9bd0a010624f9516c96ed0b386bcc28a1e591403b388a1885cf5
sha512
a8a4a928af4c5bc4a23f9519b59d0780e20521c6dc8df8c73c3dcb5848619897620cf50056dfd56a1fa7c49fd4145125cb4080419f57f6c777fac40bce5dda9d
ripemd-160
d45d2570586c92bb29b9e5f407fdcfa8a4ce7dbc
Diameter
36771780
Circumference
115521953.90742
Area
1.0619869685634E+15
Volume
2.6034100780588E+22
Surface area
4.2479478742538E+15
Circumference
115521953.90742
Perimeter
73543560
Area
338040951092100
Diagonal
26001574.9943
Surface area
2028245706552600
Volume
6.2151837422747E+21
Space diagonal
31845295.622373
Perimeter
55157670
Area
1.4637602558261E+14
Altitude
15922647.811186
Surface area
1.4637602558261E+14
Volume
7.3246642841381E+20
Height
8667191.6647666