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52479631 = 411379343
BaseRepresentation
bin1100100000110…
…0011010001111
310122202020112001
43020030122033
5101413322011
65112453131
71205032561
oct310143217
9118666461
1052479631
11276947a6
12156aa1a7
13ab45c49
146d81331
1549197c1
hex320c68f

52479631 has 8 divisors (see below), whose sum is σ = 54157824. Its totient is φ = 50820480.

The previous prime is 52479617. The next prime is 52479659. The reversal of 52479631 is 13697425.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-52479631 is a prime.

It is a super-2 number, since 2×524796312 = 5508223339792322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52479611) 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, 946 + ... + 10288.

It is an arithmetic number, because the mean of its divisors is an integer number (6769728).

Almost surely, 252479631 is an apocalyptic number.

52479631 is a deficient number, since it is larger than the sum of its proper divisors (1678193).

52479631 is a wasteful number, since it uses less digits than its factorization.

52479631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9521.

The product of its digits is 45360, while the sum is 37.

The square root of 52479631 is about 7244.2826421945. The cubic root of 52479631 is about 374.3951874328.

It can be divided in two parts, 5247 and 9631, that added together give a triangular number (14878 = T172).

The spelling of 52479631 in words is "fifty-two million, four hundred seventy-nine thousand, six hundred thirty-one".

Divisors: 1 41 137 5617 9343 383063 1279991 52479631