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388356 = 22332363
BaseRepresentation
bin1011110110100000100
3201201201120
41132310010
544411411
612153540
73205143
oct1366404
9651646
10388356
11245861
121688b0
131079c7
14a175a
157a106
hex5ed04

388356 has 12 divisors (see below), whose sum is σ = 906192. Its totient is φ = 129448.

The previous prime is 388351. The next prime is 388363. The reversal of 388356 is 653883.

388356 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (388351) by changing a digit.

388356 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16170 + ... + 16193.

It is an arithmetic number, because the mean of its divisors is an integer number (75516).

2388356 is an apocalyptic number.

It is an amenable number.

388356 is an abundant number, since it is smaller than the sum of its proper divisors (517836).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

388356 is a wasteful number, since it uses less digits than its factorization.

388356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32370 (or 32368 counting only the distinct ones).

The product of its digits is 17280, while the sum is 33.

The square root of 388356 is about 623.1821563556. The cubic root of 388356 is about 72.9586304664.

The spelling of 388356 in words is "three hundred eighty-eight thousand, three hundred fifty-six".

Divisors: 1 2 3 4 6 12 32363 64726 97089 129452 194178 388356