18864985 is an odd 8-digits composite number following 18864984
and preceding 18864986 . In scientific notation, it is written as 1.8864985 × 10^7.
The sum of its digits is 49. It has a total of 3 prime factors and 8 positive divisors.
There are 14204160 positive integers (up to 18864985) that are relatively prime to 18864985.
18864985 has 8 divisors, whose sum is 23969736
The reverse of 18864985 is 58946881
Previous prime number is 17
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 49
Digital Root 4
Name
eighteen million eight hundred sixty-four thousand nine hundred eighty-five
Scientific notation
1.8864985 × 10^7
Engineering notation
1.8864985 × 10^6
Prime Factorization
5 × 17 × 221941
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
18864985
Product of the distinct prime numbers
The prime factorization of 18864985 is 5 × 17 × 221941.
Since it has a total of 3 prime factors.
2 , 3 , 4 , 63 , 367 , 859 , 7896 , 8850 , 41620 , 31909 , 71861 , 107948 , 9363439 , 9283889 , 39156117 , 56328233 , 240385394 , 516384136 , 4662784301 , 2430968593
n×2
37729970
n×3
56594955
n×4
75459940
n×5
94324925
n÷2
9432492.5
n÷3
6288328.3333333
n÷3
4716246.25
n÷5
3772997
n2
355887659050225
n3
6.7138153496676E+21
n4
1.2665602586425E+29
n5
2.3893640280887E+36
2 √n
4343.384049333
3 √n
266.20660169757
4 √n
65.904355313841
5 √n
28.518802975276
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
-18864984
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 18864985 can be divided by 8 positive divisors.
The sum of these divisors (counting 18864985) is 1, the average is 0.125.
Base
System
Value
2
Binary
1000111111101101101011001
3
Ternary
1022111102220011
4
Quaternary
1013331231121
5
Quinary
14312134420
6
Senary
1512201521
8
Octal
107755531
10
Decimal
18864985
12
Duodecimal
63992a1
16
Hexadecimal
11fdb59
20
Vigesimal
5hi295
36
Base36
b8cbd
md5
b33d3ed808991f901174bf2ff9b560e9
sha1
c5611a12e607854681364248e169d104d3a1b3d1
sha256
1e27cb71fb00abe2f2df50f176db65a688d34ff8e59421dadff26ec8f07d4dc9
sha512
577e18689bc676fe76e33e3003edf84a044e1e1f55f3e4fcb130562c54cf6d0909bb84cdd1da1c325e8fe0e81fd07e525be5c30e39a581d758c7560a616714db
ripemd-160
2c1f46a4fca045b8d8da1644f0743e859f9e3124
Diameter
37729970
Circumference
118532196.57216
Area
1.1180540551755E+15
Volume
2.8122763973432E+22
Surface area
4.4722162207018E+15
Circumference
118532196.57216
Perimeter
75459940
Area
355887659050225
Diagonal
26679117.640965
Surface area
2135325954301350
Volume
6.7138153496676E+21
Space diagonal
32675112.504025
Perimeter
56594955
Area
1.5410387681543E+14
Altitude
16337556.252012
Surface area
1.5410387681543E+14
Volume
7.9123072689738E+20
Height
8893039.213655