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52660263 = 361833467
BaseRepresentation
bin1100100011100…
…0100000100111
310200002102022010
43020320200213
5101440112023
65120405303
71206414315
oct310704047
9120072263
1052660263
11277a8487
1215776833
13abaa226
146dcb0b5
154953093
hex3238827

52660263 has 16 divisors (see below), whose sum is σ = 72245376. Its totient is φ = 34105440.

The previous prime is 52660253. The next prime is 52660291. The reversal of 52660263 is 36206625.

It is not a de Polignac number, because 52660263 - 26 = 52660199 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 52660263.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52660253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13456 + ... + 16922.

It is an arithmetic number, because the mean of its divisors is an integer number (4515336).

Almost surely, 252660263 is an apocalyptic number.

52660263 is a deficient number, since it is larger than the sum of its proper divisors (19585113).

52660263 is a wasteful number, since it uses less digits than its factorization.

52660263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3614.

The product of its (nonzero) digits is 12960, while the sum is 30.

The square root of 52660263 is about 7256.7391437201. The cubic root of 52660263 is about 374.8242447509.

Adding to 52660263 its reverse (36206625), we get a palindrome (88866888).

The spelling of 52660263 in words is "fifty-two million, six hundred sixty thousand, two hundred sixty-three".

Divisors: 1 3 61 83 183 249 3467 5063 10401 15189 211487 287761 634461 863283 17553421 52660263