18385211 is an odd 8-digits composite number following 18385210
and preceding 18385212 . In scientific notation, it is written as 1.8385211 × 10^7.
The sum of its digits is 29. It has a total of 3 prime factors and 8 positive divisors.
There are 15273984 positive integers (up to 18385211) that are relatively prime to 18385211.
18385211 has 8 divisors, whose sum is 19855584
The reverse of 18385211 is 11258381
Previous prime number is 391
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 29
Digital Root 2
Name
eighteen million three hundred eighty-five thousand two hundred eleven
Scientific notation
1.8385211 × 10^7
Engineering notation
1.8385211 × 10^6
Prime Factorization
13 × 391 × 3617
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
18385211
Product of the distinct prime numbers
The prime factorization of 18385211 is 13 × 391 × 3617.
Since it has a total of 3 prime factors.
5 , 1 , 97 , 79 , 506 , 573 , 3114 , 7203 , 75009 , 25827 , 784083 , 827192 , 9133594 , 1004773 , 86477521 , 83502234 , 967983978 , 357345235 , 3263305436 , 4295923967
n×2
36770422
n×3
55155633
n×4
73540844
n×5
91926055
n÷2
9192605.5
n÷3
6128403.6666667
n÷3
4596302.75
n÷5
3677042.2
n2
338015983514521
n3
6.214495178287E+21
n4
1.1425480511129E+29
n5
2.1005986997349E+36
2 √n
4287.7979196786
3 √n
263.93047507286
4 √n
65.481279154264
5 √n
28.372246455582
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
-18385210
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 18385211 can be divided by 8 positive divisors.
The sum of these divisors (counting 18385211) is 1, the average is 0.125.
Base
System
Value
2
Binary
1000110001000100100111011
3
Ternary
1021121001202202
4
Quaternary
1012020210323
5
Quinary
14201311321
6
Senary
1454020415
8
Octal
106104473
10
Decimal
18385211
12
Duodecimal
61a770b
16
Hexadecimal
118893b
20
Vigesimal
5ei30b
36
Base36
ay24b
md5
4ae96d2b00f3f1bebb1b1917b33c6492
sha1
147300cec5ab58bce023e063ef770cd0b3d04638
sha256
9c2a21979ff1ea5ebe745e88e30bbc92b3c76aa66f6e22f53704a29a8ad61888
sha512
b679dbedaee069a25772d099d47f6c8d29605cc82dff8e5f7c63f52b520edc818baacaf6e0ffa53de17e96d1ce59e3ebc28796722a99051c40e4ff5da5c75c28
ripemd-160
7df03fdd908b60f31c2a16aa369c67d60b5fd42b
Diameter
36770422
Circumference
115517687.6246
Area
1.0619085306051E+15
Volume
2.6031216530501E+22
Surface area
4.2476341224206E+15
Circumference
115517687.6246
Perimeter
73540844
Area
338015983514521
Diagonal
26000614.743291
Surface area
2028095901087126
Volume
6.214495178287E+21
Space diagonal
31844119.559874
Perimeter
55155633
Area
1.4636521430438E+14
Altitude
15922059.779937
Surface area
1.4636521430438E+14
Volume
7.3238528036964E+20
Height
8666871.581097