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342388 = 2285597
BaseRepresentation
bin1010011100101110100
3122101200001
41103211310
541424023
611201044
72624134
oct1234564
9571601
10342388
11214272
12146184
13bcac7
148cac4
156b6ad
hex53974

342388 has 6 divisors (see below), whose sum is σ = 599186. Its totient is φ = 171192.

The previous prime is 342379. The next prime is 342389. The reversal of 342388 is 883243.

It can be written as a sum of positive squares in only one way, i.e., 191844 + 150544 = 438^2 + 388^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (342389) by changing a digit.

342388 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 as a sum of consecutive naturals, namely, 42795 + ... + 42802.

2342388 is an apocalyptic number.

It is an amenable number.

342388 is a deficient number, since it is larger than the sum of its proper divisors (256798).

342388 is a wasteful number, since it uses less digits than its factorization.

342388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85601 (or 85599 counting only the distinct ones).

The product of its digits is 4608, while the sum is 28.

The square root of 342388 is about 585.1392996544. The cubic root of 342388 is about 69.9583425613.

The spelling of 342388 in words is "three hundred forty-two thousand, three hundred eighty-eight".

Divisors: 1 2 4 85597 171194 342388