218331387 is an odd 9-digits composite number following 218331386
and preceding 218331388 . In scientific notation, it is written as 2.18331387 × 10^8.
The sum of its digits is 36. It has a total of 4 prime factors and 16 positive divisors.
There are 138696624 positive integers (up to 218331387) that are relatively prime to 218331387.
218331387 has 16 divisors, whose sum is 254100480
The reverse of 218331387 is 783133812
Previous prime number is 283
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 36
Digital Root 9
Name
two hundred eighteen million three hundred thirty-one thousand three hundred eighty-seven
Scientific notation
2.18331387 × 10^8
Engineering notation
2.18331387 × 10^6
Prime Factorization
9 × 23 × 283 × 3727
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
218331387
Product of the distinct prime numbers
The prime factorization of 218331387 is 9 × 23 × 283 × 3727.
Since it has a total of 4 prime factors.
10 , 2 , 23 , 74 , 408 , 272 , 7218 , 8365 , 19125 , 41623 , 925806 , 908425 , 3297587 , 3093651 , 80002124 , 95192232 , 911503716 , 9475431 , 8861751869 , 6816578506
n×2
436662774
n×3
654994161
n×4
873325548
n×5
1091656935
n÷2
109165693.5
n÷3
72777129
n÷3
54582846.75
n÷5
43666277.4
n2
47668594549343769
n3
1.0407550364299E+25
n4
2.2722949063097E+33
n5
4.9611329856764E+41
2 √n
14776.040978557
3 √n
602.15097132261
4 √n
121.55673974962
5 √n
46.539663061087
1 , 9 , 23 , 207 , 283 , 2547 , 3727 , 6509 , 33543 , 58581 , 85721 , 771489 , 1054741 , 9492669 , 24259043 , 218331387
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-218331386
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 218331387 can be divided by 16 positive divisors.
The sum of these divisors (counting 218331387) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1101000000110111100011111011
3
Ternary
120012211101100200
4
Quaternary
31000313203323
5
Quinary
421343101022
6
Senary
33355333243
8
Octal
1500674373
10
Decimal
218331387
12
Duodecimal
61151223
16
Hexadecimal
d0378fb
20
Vigesimal
384b897
36
Base36
3lzlkr
md5
4e6f4cedc06e8a13141360a963a7c475
sha1
f12c95b9060d4126d5b5cfa112a8415bca99658c
sha256
3af78d927841cd4ff2f83158695a6bda2b96c3995b83313dca63e4885f993d57
sha512
bf092d592fd1cc0c3cd6321fdbb544cb435c19c51036b38227426bc4d327e843eda934cc3fdbb586847496fcb0f7c4fc1f58f050cf6f186071e92346fc81429e
ripemd-160
86acb6335b975af6171481e7c8cabfa639963003
Diameter
436662774
Circumference
1371816562.8945
Area
1.4975530644317E+17
Volume
4.3595045021796E+25
Surface area
5.9902122577268E+17
Circumference
1371816562.8945
Perimeter
873325548
Area
47668594549343769
Diagonal
308767208.58713
Surface area
286011567296062614
Volume
1.0407550364299E+25
Space diagonal
378161055.17098
Perimeter
654994161
Area
2.0641106921216E+16
Altitude
189080527.58549
Surface area
2.0641106921216E+16
Volume
1.2265415730227E+24
Height
102922402.86238