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52488047 = 232282089
BaseRepresentation
bin1100100000111…
…0011101101111
310122202200001202
43020032131233
5101414104142
65113000115
71205066243
oct310163557
9118680052
1052488047
11276a0057
12156b303b
13ab49a21
146d84423
15491c032
hex320e76f

52488047 has 4 divisors (see below), whose sum is σ = 54770160. Its totient is φ = 50205936.

The previous prime is 52488043. The next prime is 52488067. The reversal of 52488047 is 74088425.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 52488047 - 22 = 52488043 is a prime.

It is a super-4 number, since 4×524880474 (a number of 32 digits) contains 4444 as substring. Note that it is a super-d number also for d = 3.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 52488047.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52488043) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1141022 + ... + 1141067.

It is an arithmetic number, because the mean of its divisors is an integer number (13692540).

Almost surely, 252488047 is an apocalyptic number.

52488047 is a deficient number, since it is larger than the sum of its proper divisors (2282113).

52488047 is a wasteful number, since it uses less digits than its factorization.

52488047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2282112.

The product of its (nonzero) digits is 71680, while the sum is 38.

The square root of 52488047 is about 7244.8634907774. The cubic root of 52488047 is about 374.4151999051.

The spelling of 52488047 in words is "fifty-two million, four hundred eighty-eight thousand, forty-seven".

Divisors: 1 23 2282089 52488047