Base | Representation |
---|---|
bin | 1011110110101100010 |
3 | 201201212001 |
4 | 1132311202 |
5 | 44412300 |
6 | 12154214 |
7 | 3205336 |
oct | 1366542 |
9 | 651761 |
10 | 388450 |
11 | 245937 |
12 | 16896a |
13 | 107a6a |
14 | a17c6 |
15 | 7a16a |
hex | 5ed62 |
388450 has 24 divisors (see below), whose sum is σ = 766692. Its totient is φ = 145920.
The previous prime is 388403. The next prime is 388459. The reversal of 388450 is 54883.
388450 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.
It can be written as a sum of positive squares in 6 ways, for example, as 273529 + 114921 = 523^2 + 339^2 .
It is not an unprimeable number, because it can be changed into a prime (388459) by changing a digit.
388450 is an untouchable number, because it is not equal to the sum of proper divisors of any number.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 622 + ... + 1078.
2388450 is an apocalyptic number.
388450 is a deficient number, since it is larger than the sum of its proper divisors (378242).
388450 is a wasteful number, since it uses less digits than its factorization.
With its successor (388451) it forms a Ruth-Aaron pair, since the sum of their distinct prime factors is the same (481).
388450 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 486 (or 481 counting only the distinct ones).
The product of its (nonzero) digits is 3840, while the sum is 28.
The square root of 388450 is about 623.2575711534. The cubic root of 388450 is about 72.9645164387.
It can be divided in two parts, 388 and 450, that added together give a palindrome (838).
The spelling of 388450 in words is "three hundred eighty-eight thousand, four hundred fifty".
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