18985265 is an odd 8-digits composite number following 18985264
and preceding 18985266 . In scientific notation, it is written as 1.8985265 × 10^7.
The sum of its digits is 44. It has a total of 3 prime factors and 8 positive divisors.
There are 14019840 positive integers (up to 18985265) that are relatively prime to 18985265.
18985265 has 8 divisors, whose sum is 24534888
The reverse of 18985265 is 56258981
Previous prime number is 13
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 44
Digital Root 8
Name
eighteen million nine hundred eighty-five thousand two hundred sixty-five
Scientific notation
1.8985265 × 10^7
Engineering notation
1.8985265 × 10^6
Prime Factorization
5 × 13 × 292081
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
18985265
Product of the distinct prime numbers
The prime factorization of 18985265 is 5 × 13 × 292081.
Since it has a total of 3 prime factors.
6 , 4 , 29 , 36 , 590 , 574 , 6950 , 657 , 19908 , 77 , 360868 , 694296 , 664596 , 6672962 , 99829738 , 12244782 , 900618123 , 528963371 , 3162969207 , 3906147204
n×2
37970530
n×3
56955795
n×4
75941060
n×5
94926325
n÷2
9492632.5
n÷3
6328421.6666667
n÷3
4746316.25
n÷5
3797053
n2
360440287120225
n3
6.8430543676536E+21
n4
1.2991720057931E+29
n5
2.4665124810564E+36
2 √n
4357.2083952916
3 √n
266.77116650911
4 √n
66.009153874987
5 √n
28.555076809368
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
-18985264
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 18985265 can be divided by 8 positive divisors.
The sum of these divisors (counting 18985265) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001000011011000100110001
3
Ternary
1022201112212222
4
Quaternary
1020123010301
5
Quinary
14330012030
6
Senary
1514530425
8
Octal
110330461
10
Decimal
18985265
12
Duodecimal
6436a15
16
Hexadecimal
121b131
20
Vigesimal
5id335
36
Base36
bax4h
md5
2b399c9064f09352f3233a713a491cda
sha1
a4ec5318cfda5143fe3386baab9c29ab86976429
sha256
a31f664e1e6ab62b6a33a3e7e3e9ce58e62bc240fa70423182f6ab3ab78605d3
sha512
2f612f4da2fd550bd98c3a8126f53cf5d36263a14a2e870a90615d3e1fd9a78fd90c06fa26242c8082b5275e81f5580975c5040057f660eaa7ac181aff4d9ab0
ripemd-160
6077d97cd2686f0261fa84cccd3d742360623717
Diameter
37970530
Circumference
119287938.10091
Area
1.1323565580747E+15
Volume
2.8664119106048E+22
Surface area
4.5294262322988E+15
Circumference
119287938.10091
Perimeter
75941060
Area
360440287120225
Diagonal
26849219.248247
Surface area
2162641722721350
Volume
6.8430543676536E+21
Space diagonal
32883443.575159
Perimeter
56955795
Area
1.5607522259674E+14
Altitude
16441721.78758
Surface area
1.5607522259674E+14
Volume
8.0646169123268E+20
Height
8949739.7494157