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53286788 = 2273182489
BaseRepresentation
bin1100101101000…
…1011110000100
310201021020201202
43023101132010
5102120134123
65142042032
71214634032
oct313213604
9121236652
1053286788
1128096175
1215a19318
13b069459
147111552
154a28a28
hex32d1784

53286788 has 12 divisors (see below), whose sum is σ = 94529820. Its totient is φ = 26278272.

The previous prime is 53286763. The next prime is 53286797. The reversal of 53286788 is 88768235.

It can be written as a sum of positive squares in 2 ways, for example, as 11710084 + 41576704 = 3422^2 + 6448^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 90953 + ... + 91536.

It is an arithmetic number, because the mean of its divisors is an integer number (7877485).

Almost surely, 253286788 is an apocalyptic number.

It is an amenable number.

53286788 is a deficient number, since it is larger than the sum of its proper divisors (41243032).

53286788 is a wasteful number, since it uses less digits than its factorization.

53286788 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182566 (or 182564 counting only the distinct ones).

The product of its digits is 645120, while the sum is 47.

The square root of 53286788 is about 7299.7799966848. The cubic root of 53286788 is about 376.3048775928.

The spelling of 53286788 in words is "fifty-three million, two hundred eighty-six thousand, seven hundred eighty-eight".

Divisors: 1 2 4 73 146 292 182489 364978 729956 13321697 26643394 53286788