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52505032155 = 35192323093469
BaseRepresentation
bin110000111001100010…
…110011010111011011
312000112011110222201120
4300321202303113123
51330012242012110
640042005020323
73536060260332
oct607142632733
9160464428646
1052505032155
11202a37a3864
12a2139b46a3
134c49a41784
1427812d0d19
151574766870
hexc398b35db

52505032155 has 64 divisors (see below), whose sum is σ = 92340864000. Its totient is φ = 25357128192.

The previous prime is 52505032147. The next prime is 52505032159. The reversal of 52505032155 is 55123050525.

It is not a de Polignac number, because 52505032155 - 23 = 52505032147 is a prime.

It is not an unprimeable number, because it can be changed into a prime (52505032159) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 15133761 + ... + 15137229.

It is an arithmetic number, because the mean of its divisors is an integer number (1442826000).

Almost surely, 252505032155 is an apocalyptic number.

52505032155 is a deficient number, since it is larger than the sum of its proper divisors (39835831845).

52505032155 is a wasteful number, since it uses less digits than its factorization.

52505032155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5828.

The product of its (nonzero) digits is 37500, while the sum is 33.

The spelling of 52505032155 in words is "fifty-two billion, five hundred five million, thirty-two thousand, one hundred fifty-five".

Divisors: 1 3 5 15 19 23 57 69 95 115 285 345 437 1311 2185 2309 3469 6555 6927 10407 11545 17345 34635 43871 52035 53107 65911 79787 131613 159321 197733 219355 239361 265535 329555 398935 658065 796605 988665 1009033 1196805 1515953 3027099 4547859 5045165 7579765 8009921 15135495 22739295 24029763 40049605 120148815 152188499 184228183 456565497 552684549 760942495 921140915 2282827485 2763422745 3500335477 10501006431 17501677385 52505032155