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52531164 = 22327208457
BaseRepresentation
bin1100100001100…
…0111111011100
310122211212012200
43020120333130
5101421444124
65113531500
71205336040
oct310307734
9118755180
1052531164
112771a494
1215713b90
13ab6353a
146d96020
154929bc9
hex3218fdc

52531164 has 36 divisors (see below), whose sum is σ = 151757424. Its totient is φ = 15008832.

The previous prime is 52531163. The next prime is 52531183. The reversal of 52531164 is 46113525.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52531163) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 103977 + ... + 104480.

It is an arithmetic number, because the mean of its divisors is an integer number (4215484).

Almost surely, 252531164 is an apocalyptic number.

It is an amenable number.

52531164 is an abundant number, since it is smaller than the sum of its proper divisors (99226260).

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

52531164 is a wasteful number, since it uses less digits than its factorization.

52531164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 208474 (or 208469 counting only the distinct ones).

The product of its digits is 3600, while the sum is 27.

The square root of 52531164 is about 7247.8385743613. The cubic root of 52531164 is about 374.5176946167.

Adding to 52531164 its reverse (46113525), we get a palindrome (98644689).

The spelling of 52531164 in words is "fifty-two million, five hundred thirty-one thousand, one hundred sixty-four".

Divisors: 1 2 3 4 6 7 9 12 14 18 21 28 36 42 63 84 126 252 208457 416914 625371 833828 1250742 1459199 1876113 2501484 2918398 3752226 4377597 5836796 7504452 8755194 13132791 17510388 26265582 52531164