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52660212 = 22311398941
BaseRepresentation
bin1100100011100…
…0011111110100
310200002102020020
43020320133310
5101440111322
65120405140
71206414213
oct310703764
9120072206
1052660212
11277a8440
12157767b0
13abaa1b7
146dcb07a
15495305c
hex32387f4

52660212 has 24 divisors (see below), whose sum is σ = 134044512. Its totient is φ = 15957600.

The previous prime is 52660211. The next prime is 52660219. The reversal of 52660212 is 21206625.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52660211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 199339 + ... + 199602.

It is an arithmetic number, because the mean of its divisors is an integer number (5585188).

Almost surely, 252660212 is an apocalyptic number.

It is an amenable number.

52660212 is an abundant number, since it is smaller than the sum of its proper divisors (81384300).

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

52660212 is a wasteful number, since it uses less digits than its factorization.

52660212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 398959 (or 398957 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 52660212 is about 7256.7356297443. The cubic root of 52660212 is about 374.8241237486.

Adding to 52660212 its reverse (21206625), we get a palindrome (73866837).

The spelling of 52660212 in words is "fifty-two million, six hundred sixty thousand, two hundred twelve".

Divisors: 1 2 3 4 6 11 12 22 33 44 66 132 398941 797882 1196823 1595764 2393646 4388351 4787292 8776702 13165053 17553404 26330106 52660212