18385215 is an odd 8-digits composite number following 18385214
and preceding 18385216 . In scientific notation, it is written as 1.8385215 × 10^7.
The sum of its digits is 33. It has a total of 3 prime factors and 8 positive divisors.
There are 9785216 positive integers (up to 18385215) that are relatively prime to 18385215.
18385215 has 8 divisors, whose sum is 19651392
The reverse of 18385215 is 51258381
Previous prime number is 1877
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 33
Digital Root 6
Name
eighteen million three hundred eighty-five thousand two hundred fifteen
Scientific notation
1.8385215 × 10^7
Engineering notation
1.8385215 × 10^6
Prime Factorization
15 × 1877 × 653
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
18385215
Product of the distinct prime numbers
The prime factorization of 18385215 is 15 × 1877 × 653.
Since it has a total of 3 prime factors.
4 , 6 , 37 , 33 , 933 , 823 , 5205 , 5275 , 64699 , 38108 , 466958 , 94666 , 38355 , 5703169 , 80740442 , 74890047 , 184535650 , 605796615 , 7476506793 , 5993586901
n×2
36770430
n×3
55155645
n×4
73540860
n×5
91926075
n÷2
9192607.5
n÷3
6128405
n÷3
4596303.75
n÷5
3677043
n2
338016130596225
n3
6.2144992344797E+21
n4
1.1425490454324E+29
n5
2.100600984832E+36
2 √n
4287.7983861185
3 √n
263.93049421364
4 √n
65.481282715891
5 √n
28.37224769015
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
-18385214
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 18385215 can be divided by 8 positive divisors.
The sum of these divisors (counting 18385215) is 1, the average is 0.125.
Base
System
Value
2
Binary
1000110001000100100111111
3
Ternary
1021121001202220
4
Quaternary
1012020210333
5
Quinary
14201311330
6
Senary
1454020423
8
Octal
106104477
10
Decimal
18385215
12
Duodecimal
61a7713
16
Hexadecimal
118893f
20
Vigesimal
5ei30f
36
Base36
ay24f
md5
fe74b4e26ba1e38ba5ee983a9767849b
sha1
a0e141e3f283ee12eb97c1fc04f482e8572f5601
sha256
22525d1e4360230bd07174ee482ec51b97eae82d89c3f4c6f9b2ee26461b4e2e
sha512
b581047edfe204b4dc316778fecc9d972b75cef076731e02c95e19591a8265380cbe0a4a38daaa4097641f18d354fbd6c7b355ec7c5e20ced966e1dce9d7e532
ripemd-160
43b74ae13cad30d578ccf6b6d2758e811fbead21
Diameter
36770430
Circumference
115517712.75734
Area
1.0619089926759E+15
Volume
2.6031233521041E+22
Surface area
4.2476359707038E+15
Circumference
115517712.75734
Perimeter
73540860
Area
338016130596225
Diagonal
26000620.400145
Surface area
2028096783577350
Volume
6.2144992344797E+21
Space diagonal
31844126.488077
Perimeter
55155645
Area
1.4636527799262E+14
Altitude
15922063.244039
Surface area
1.4636527799262E+14
Volume
7.3238575839653E+20
Height
8666873.4667151