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65285216 = 2519107377
BaseRepresentation
bin1111100100001…
…0110001100000
311112211211110222
43321002301200
5113203111331
610251142212
71421625623
oct371026140
9145754428
1065285216
1133940827
1219a44968
13106aa809
148955dba
155ae8b7b
hex3e42c60

65285216 has 24 divisors (see below), whose sum is σ = 135296280. Its totient is φ = 30924288.

The previous prime is 65285173. The next prime is 65285251. The reversal of 65285216 is 61258256.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 53081 + ... + 54296.

It is an arithmetic number, because the mean of its divisors is an integer number (5637345).

Almost surely, 265285216 is an apocalyptic number.

It is an amenable number.

65285216 is an abundant number, since it is smaller than the sum of its proper divisors (70011064).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

65285216 is a wasteful number, since it uses less digits than its factorization.

65285216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107406 (or 107398 counting only the distinct ones).

The product of its digits is 28800, while the sum is 35.

The square root of 65285216 is about 8079.9267323411. The cubic root of 65285216 is about 402.6598076889.

The spelling of 65285216 in words is "sixty-five million, two hundred eighty-five thousand, two hundred sixteen".

Divisors: 1 2 4 8 16 19 32 38 76 152 304 608 107377 214754 429508 859016 1718032 2040163 3436064 4080326 8160652 16321304 32642608 65285216