218688085 is an odd 9-digits composite number following 218688084
and preceding 218688086 . In scientific notation, it is written as 2.18688085 × 10^8.
The sum of its digits is 46. It has a total of 5 prime factors and 32 positive divisors.
There are 128302080 positive integers (up to 218688085) that are relatively prime to 218688085.
218688085 has 32 divisors, whose sum is 346436352
The reverse of 218688085 is 580886812
Previous prime number is 17
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 46
Digital Root 1
Name
two hundred eighteen million six hundred eighty-eight thousand eighty-five
Scientific notation
2.18688085 × 10^8
Engineering notation
2.18688085 × 10^6
Prime Factorization
5 × 7 × 11 × 17 × 33413
Composite number
ω
Distinct Factors
5
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
218688085
Product of the distinct prime numbers
The prime factorization of 218688085 is 5 × 7 × 11 × 17 × 33413.
Since it has a total of 5 prime factors.
9 , 6 , 48 , 7 , 755 , 182 , 2831 , 3615 , 9879 , 84839 , 581497 , 414874 , 8021514 , 3587568 , 24704407 , 93982961 , 64147195 , 553204372 , 7533096311 , 9079766640
n×2
437376170
n×3
656064255
n×4
874752340
n×5
1093440425
n÷2
109344042.5
n÷3
72896028.333333
n÷3
54672021.25
n÷5
43737617
n2
47824478520967225
n3
1.0458643623874E+25
n4
2.2871807458025E+33
n5
5.0017917734841E+41
2 √n
14788.106200592
3 √n
602.47871345741
4 √n
121.6063575665
5 √n
46.554859929588
1 , 5 , 7 , 11 , 17 , 35 , 55 , 77 , 85 , 119 , 187 , 385 , 595 , 935 , 1309 , 6545 , 33413 , 167065 , 233891 , 367543 , 568021 , 1169455 , 1837715 , 2572801 , 2840105 , 3976147 , 6248231 , 12864005 , 19880735 , 31241155 , 43737617 , 218688085
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
-218688084
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 218688085 can be divided by 32 positive divisors.
The sum of these divisors (counting 218688085) is 1, the average is 0.03125.
Base
System
Value
2
Binary
1101000010001110101001010101
3
Ternary
120020111111122201
4
Quaternary
31002032221111
5
Quinary
421441004320
6
Senary
33411124501
8
Octal
1502165125
10
Decimal
218688085
12
Duodecimal
612a3731
16
Hexadecimal
d08ea55
20
Vigesimal
386g045
36
Base36
3m78t1
md5
a6151ba300823c57d7cf23bec0397b71
sha1
2acda6628cc8d48a55f752253d82ba1b56723eed
sha256
6a05049d39984ffb645c38e48aa7624bab300e37196217940cc7c417ba7c3145
sha512
243fbbe591f5913ea2819046fff5504207e429c1491c8234e962ef096ff984b0031df03a0f5003f574fdca8fdc8c688b872633e99e520af7b7c38be55ed369fb
ripemd-160
f347a52a40dc5ee4805548c62c454e14e1e1fb04
Diameter
437376170
Circumference
1374057762.5272
Area
1.5024503038323E+17
Volume
4.3809063967035E+25
Surface area
6.0098012153293E+17
Circumference
1374057762.5272
Perimeter
874752340
Area
47824478520967225
Diagonal
309271655.7364
Surface area
286946871125803350
Volume
1.0458643623874E+25
Space diagonal
378778874.22994
Perimeter
656064255
Area
2.070860666095E+16
Altitude
189389437.11497
Surface area
2.070860666095E+16
Volume
1.2325629714091E+24
Height
103090551.91213