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67288304 = 2416072617
BaseRepresentation
bin1000000001010…
…11110011110000
311200121121012102
410000223303300
5114211211204
610402115532
71444640546
oct400536360
9150547172
1067288304
1134a89776
121a64bba8
1310c2c485
148d17d96
155d9241e
hex402bcf0

67288304 has 20 divisors (see below), whose sum is σ = 130502064. Its totient is φ = 33610368.

The previous prime is 67288279. The next prime is 67288313. The reversal of 67288304 is 40388276.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors.

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, 24404 + ... + 27020.

Almost surely, 267288304 is an apocalyptic number.

It is an amenable number.

67288304 is a deficient number, since it is larger than the sum of its proper divisors (63213760).

67288304 is a wasteful number, since it uses less digits than its factorization.

67288304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4232 (or 4226 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 38.

The square root of 67288304 is about 8202.9448370692. The cubic root of 67288304 is about 406.7365438764.

The spelling of 67288304 in words is "sixty-seven million, two hundred eighty-eight thousand, three hundred four".

Divisors: 1 2 4 8 16 1607 2617 3214 5234 6428 10468 12856 20936 25712 41872 4205519 8411038 16822076 33644152 67288304