231388 is an even 6-digits composite number following 231387
and preceding 231389 . In scientific notation, it is written as 2.31388 × 10^5.
The sum of its digits is 25. It has a total of 3 prime factors and 6 positive divisors.
There are 115692 positive integers (up to 231388) that are relatively prime to 231388.
231388 has 6 divisors, whose sum is 404936
The reverse of 231388 is 883132
Previous prime number is 2
Is Prime? no
Number parity even
Number length 6
Sum of Digits 25
Digital Root 7
Name
two hundred thirty-one thousand three hundred eighty-eight
Scientific notation
2.31388 × 10^5
Engineering notation
2.31388 × 10^3
Prime Factorization
2 × 2 × 57847
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
115694
Product of the distinct prime numbers
The prime factorization of 231388 is 2 × 2 × 57847.
Since it has a total of 3 prime factors.
5 , 8 , 9 , 97 , 65 , 725 , 495 , 9058 , 53567 , 55267 , 132905 , 609256 , 7169430 , 726495 , 6761140 , 96997813 , 352099396 , 908712109 , 9575412593 , 3943927033
n×2
462776
n×3
694164
n×4
925552
n×5
1156940
n÷2
115694
n÷3
77129.333333333
n÷3
57847
n÷5
46277.6
n2
53540406544
n3
12388607589403072
n4
2.8665751328968E+21
n5
6.6329108685072E+26
2 √n
481.02806570927
3 √n
61.392258535131
4 √n
21.932352033224
5 √n
11.826824885526
6 divisors
τ
Total Divisors
6
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-231387
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.16666666666667
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
6
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 231388 can be divided by 6 positive divisors.
The sum of these divisors (counting 231388) is 1, the average is 0.16666666666667.
Base
System
Value
2
Binary
111000011111011100
3
Ternary
102202101221
4
Quaternary
320133130
5
Quinary
24401023
6
Senary
4543124
8
Octal
703734
10
Decimal
231388
12
Duodecimal
b1aa4
16
Hexadecimal
387dc
20
Vigesimal
18i98
36
Base36
4yjg
md5
194ffc34f7948277a447275b550c51a2
sha1
a5a8fe9af2038bbe1d66364890be6f64cf2d9ccb
sha256
2230478e9c2f98503c3a912cce62dc44f2a733dd8bbb536d8bbc9dcd76a18fe7
sha512
1da540e8edb15f5c0a66e2e6c8379ecaa3c4f2f2ce2de212b2b2c6679c97101639200cf7bafef7aa7cad68512d33297831685a849761d60eb628cb14e5696217
ripemd-160
5d9e4840197bcfc2d20479737701b2b558df3c60
Diameter
462776
Circumference
1453853.6818577
Area
168202147868.84
Volume
5.1893278121434E+16
Surface area
672808591475.37
Circumference
1453853.6818577
Perimeter
925552
Area
53540406544
Diagonal
327232.04777039
Surface area
321242439264
Volume
12388607589403072
Space diagonal
400775.77226175
Perimeter
694164
Area
23183676098.025
Altitude
200387.88613087
Surface area
23183676098.025
Volume
1.4600114059877E+15
Height
109077.3492568