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388255 = 5711093
BaseRepresentation
bin1011110110010011111
3201201120211
41132302133
544411010
612153251
73204640
oct1366237
9651524
10388255
1124577a
12168827
1310794a
14a16c7
157a08a
hex5ec9f

388255 has 8 divisors (see below), whose sum is σ = 532512. Its totient is φ = 266208.

The previous prime is 388253. The next prime is 388259. The reversal of 388255 is 552883.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 388255 - 21 = 388253 is a prime.

It is a Duffinian number.

It is a plaindrome in base 11.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (388253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5512 + ... + 5581.

It is an arithmetic number, because the mean of its divisors is an integer number (66564).

2388255 is an apocalyptic number.

388255 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

388255 is a deficient number, since it is larger than the sum of its proper divisors (144257).

388255 is a wasteful number, since it uses less digits than its factorization.

388255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11105.

The product of its digits is 9600, while the sum is 31.

The square root of 388255 is about 623.1011153898. The cubic root of 388255 is about 72.9523051183.

The spelling of 388255 in words is "three hundred eighty-eight thousand, two hundred fifty-five".

Divisors: 1 5 7 35 11093 55465 77651 388255