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52587285 = 353505819
BaseRepresentation
bin1100100010011…
…0101100010101
310122221201012020
43020212230111
5101430243120
65115043353
71205661462
oct310465425
9118851166
1052587285
1127758673
1215740559
13ab82c4a
146dac669
15493b640
hex3226b15

52587285 has 8 divisors (see below), whose sum is σ = 84139680. Its totient is φ = 28046544.

The previous prime is 52587263. The next prime is 52587287. The reversal of 52587285 is 58278525.

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

It is not a de Polignac number, because 52587285 - 26 = 52587221 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52587287) 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, 1752895 + ... + 1752924.

It is an arithmetic number, because the mean of its divisors is an integer number (10517460).

Almost surely, 252587285 is an apocalyptic number.

It is an amenable number.

52587285 is a deficient number, since it is larger than the sum of its proper divisors (31552395).

52587285 is a wasteful number, since it uses less digits than its factorization.

52587285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3505827.

The product of its digits is 224000, while the sum is 42.

The square root of 52587285 is about 7251.7091088929. The cubic root of 52587285 is about 374.6510175530.

The spelling of 52587285 in words is "fifty-two million, five hundred eighty-seven thousand, two hundred eighty-five".

Divisors: 1 3 5 15 3505819 10517457 17529095 52587285