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53188135 = 57111310627
BaseRepresentation
bin1100101011100…
…1011000100111
310201002020101221
43022321120213
5102104010020
65140001211
71214043310
oct312713047
9121066357
1053188135
1128029040
1215990207
13b033590
1470c7607
154a096aa
hex32b9627

53188135 has 32 divisors (see below), whose sum is σ = 85704192. Its totient is φ = 30602880.

The previous prime is 53188103. The next prime is 53188141.

53188135 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 53188135 - 25 = 53188103 is a prime.

It is a Smith number, since the sum of its digits (34) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 53188135.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 309 + ... + 10318.

It is an arithmetic number, because the mean of its divisors is an integer number (2678256).

Almost surely, 253188135 is an apocalyptic number.

53188135 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

53188135 is a deficient number, since it is larger than the sum of its proper divisors (32516057).

53188135 is a wasteful number, since it uses less digits than its factorization.

53188135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10663.

The product of its digits is 14400, while the sum is 34.

The square root of 53188135 is about 7293.0196078168. The cubic root of 53188135 is about 376.0725089339.

The spelling of 53188135 in words is "fifty-three million, one hundred eighty-eight thousand, one hundred thirty-five".

Divisors: 1 5 7 11 13 35 55 65 77 91 143 385 455 715 1001 5005 10627 53135 74389 116897 138151 371945 584485 690755 818279 967057 1519661 4091395 4835285 7598305 10637627 53188135