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53053287 = 376433929
BaseRepresentation
bin1100101001100…
…0011101100111
310200211101102120
43022120131213
5102040201122
65133041023
71212642210
oct312303547
9120741376
1053053287
1127a467a1
1215926173
13acb70a1
147090407
1549ce75c
hex3298767

53053287 has 16 divisors (see below), whose sum is σ = 80989440. Its totient is φ = 30261312.

The previous prime is 53053279. The next prime is 53053291. The reversal of 53053287 is 78235035.

It is not a de Polignac number, because 53053287 - 23 = 53053279 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53053487) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11539 + ... + 15467.

It is an arithmetic number, because the mean of its divisors is an integer number (5061840).

Almost surely, 253053287 is an apocalyptic number.

53053287 is a deficient number, since it is larger than the sum of its proper divisors (27936153).

53053287 is a wasteful number, since it uses less digits than its factorization.

53053287 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4582.

The product of its (nonzero) digits is 25200, while the sum is 33.

The square root of 53053287 is about 7283.7687360322. The cubic root of 53053287 is about 375.7544208024.

The spelling of 53053287 in words is "fifty-three million, fifty-three thousand, two hundred eighty-seven".

Divisors: 1 3 7 21 643 1929 3929 4501 11787 13503 27503 82509 2526347 7579041 17684429 53053287