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52488469 = 1121721979
BaseRepresentation
bin1100100000111…
…0100100010101
310122202200122101
43020032210111
5101414112334
65113002101
71205100415
oct310164425
9118680571
1052488469
11276a0400
12156b3331
13ab49c87
146d84645
15491c214
hex320e915

52488469 has 36 divisors (see below), whose sum is σ = 65329600. Its totient is φ = 42007680.

The previous prime is 52488467. The next prime is 52488481. The reversal of 52488469 is 96488425.

It is not a de Polignac number, because 52488469 - 21 = 52488467 is a prime.

It is a super-2 number, since 2×524884692 = 5510078755927922, which contains 22 as substring.

It is a Smith number, since the sum of its digits (46) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52488467) 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 35 ways as a sum of consecutive naturals, for example, 664372 + ... + 664450.

Almost surely, 252488469 is an apocalyptic number.

It is an amenable number.

52488469 is a deficient number, since it is larger than the sum of its proper divisors (12841131).

52488469 is a wasteful number, since it uses less digits than its factorization.

52488469 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154 (or 126 counting only the distinct ones).

The product of its digits is 552960, while the sum is 46.

The square root of 52488469 is about 7244.8926148011. The cubic root of 52488469 is about 374.4162033258.

The spelling of 52488469 in words is "fifty-two million, four hundred eighty-eight thousand, four hundred sixty-nine".

Divisors: 1 11 17 19 79 121 187 209 289 323 869 1343 1501 2057 2299 3179 3553 5491 9559 14773 16511 22831 25517 34969 39083 60401 162503 181621 251141 280687 433789 664411 2762551 3087557 4771679 52488469