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53129934 = 232111320641
BaseRepresentation
bin1100101010101…
…1001011001110
310200222021120100
43022223023032
5102100124214
65134431530
71213411524
oct312531316
9120867510
1053129934
1127a99340
12159625a6
13b012c40
1470b0314
1549e7309
hex32ab2ce

53129934 has 48 divisors (see below), whose sum is σ = 135246384. Its totient is φ = 14860800.

The previous prime is 53129933. The next prime is 53129953. The reversal of 53129934 is 43992135.

It is a happy number.

53129934 is a `hidden beast` number, since 531 + 2 + 99 + 34 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53129933) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7747 + ... + 12894.

It is an arithmetic number, because the mean of its divisors is an integer number (2817633).

Almost surely, 253129934 is an apocalyptic number.

53129934 is an abundant number, since it is smaller than the sum of its proper divisors (82116450).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

53129934 is a wasteful number, since it uses less digits than its factorization.

53129934 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20673 (or 20670 counting only the distinct ones).

The product of its digits is 29160, while the sum is 36.

The square root of 53129934 is about 7289.0283303058. The cubic root of 53129934 is about 375.9352866975.

The spelling of 53129934 in words is "fifty-three million, one hundred twenty-nine thousand, nine hundred thirty-four".

Divisors: 1 2 3 6 9 11 13 18 22 26 33 39 66 78 99 117 143 198 234 286 429 858 1287 2574 20641 41282 61923 123846 185769 227051 268333 371538 454102 536666 681153 804999 1362306 1609998 2043459 2414997 2951663 4086918 4829994 5903326 8854989 17709978 26564967 53129934