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52531205870 = 25111336735109
BaseRepresentation
bin110000111011000110…
…101001011011101110
312000120222201202022102
4300323012221123232
51330040442041440
640044342015102
73536525611463
oct607306513356
9160528652272
1052531205870
1120307550530
12a220717492
134c522a6c90
14278498566a
151576bd6b15
hexc3b1a96ee

52531205870 has 32 divisors (see below), whose sum is σ = 111086972640. Its totient is φ = 17632851840.

The previous prime is 52531205851. The next prime is 52531205887. The reversal of 52531205870 is 7850213525.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18366125 + ... + 18368984.

It is an arithmetic number, because the mean of its divisors is an integer number (3471467895).

Almost surely, 252531205870 is an apocalyptic number.

52531205870 is an abundant number, since it is smaller than the sum of its proper divisors (58555766770).

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

52531205870 is a wasteful number, since it uses less digits than its factorization.

52531205870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36735140.

The product of its (nonzero) digits is 84000, while the sum is 38.

The spelling of 52531205870 in words is "fifty-two billion, five hundred thirty-one million, two hundred five thousand, eight hundred seventy".

Divisors: 1 2 5 10 11 13 22 26 55 65 110 130 143 286 715 1430 36735109 73470218 183675545 367351090 404086199 477556417 808172398 955112834 2020430995 2387782085 4040861990 4775564170 5253120587 10506241174 26265602935 52531205870