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516388 = 22129097
BaseRepresentation
bin1111110000100100100
3222020100111
41332010210
5113011023
615022404
74250335
oct1760444
9866314
10516388
11322a74
1220aa04
13151072
14d628c
15a300d
hex7e124

516388 has 6 divisors (see below), whose sum is σ = 903686. Its totient is φ = 258192.

The previous prime is 516377. The next prime is 516391. The reversal of 516388 is 883615.

516388 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 only one way, i.e., 399424 + 116964 = 632^2 + 342^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64545 + ... + 64552.

2516388 is an apocalyptic number.

It is an amenable number.

516388 is a deficient number, since it is larger than the sum of its proper divisors (387298).

516388 is a wasteful number, since it uses less digits than its factorization.

516388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129101 (or 129099 counting only the distinct ones).

The product of its digits is 5760, while the sum is 31.

The square root of 516388 is about 718.6014194253. The cubic root of 516388 is about 80.2278918664.

The spelling of 516388 in words is "five hundred sixteen thousand, three hundred eighty-eight".

Divisors: 1 2 4 129097 258194 516388