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66331364 = 22111507531
BaseRepresentation
bin1111110100001…
…0001011100100
311121210222112012
43331002023210
5113440100424
610325413352
71433543621
oct375021344
9147728465
1066331364
1134495810
121a26a258
1310985a38
148b49348
155c53b0e
hex3f422e4

66331364 has 12 divisors (see below), whose sum is σ = 126632688. Its totient is φ = 30150600.

The previous prime is 66331361. The next prime is 66331393. The reversal of 66331364 is 46313366.

66331364 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 66331364.

It is not an unprimeable number, because it can be changed into a prime (66331361) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 753722 + ... + 753809.

It is an arithmetic number, because the mean of its divisors is an integer number (10552724).

Almost surely, 266331364 is an apocalyptic number.

It is an amenable number.

66331364 is a deficient number, since it is larger than the sum of its proper divisors (60301324).

66331364 is a wasteful number, since it uses less digits than its factorization.

66331364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1507546 (or 1507544 counting only the distinct ones).

The product of its digits is 23328, while the sum is 32.

The square root of 66331364 is about 8144.4069151780. The cubic root of 66331364 is about 404.7991973118.

It can be divided in two parts, 6633 and 1364, that added together give a palindrome (7997).

The spelling of 66331364 in words is "sixty-six million, three hundred thirty-one thousand, three hundred sixty-four".

Divisors: 1 2 4 11 22 44 1507531 3015062 6030124 16582841 33165682 66331364