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66046064 = 2472325639
BaseRepresentation
bin1111101111110…
…0100001110000
311121021111011112
43323330201300
5113401433224
610315332452
71431245060
oct373744160
9147244145
1066046064
1134310427
121a151128
13108b5c16
148ab33a0
155be930e
hex3efc870

66046064 has 40 divisors (see below), whose sum is σ = 152609280. Its totient is φ = 27073728.

The previous prime is 66046063. The next prime is 66046067. The reversal of 66046064 is 46064066.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 66046064.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66046061) 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, 10244 + ... + 15395.

It is an arithmetic number, because the mean of its divisors is an integer number (3815232).

Almost surely, 266046064 is an apocalyptic number.

It is an amenable number.

66046064 is an abundant number, since it is smaller than the sum of its proper divisors (86563216).

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

66046064 is a wasteful number, since it uses less digits than its factorization.

66046064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25677 (or 25671 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 32.

The square root of 66046064 is about 8126.8729533567. The cubic root of 66046064 is about 404.2179982181.

The spelling of 66046064 in words is "sixty-six million, forty-six thousand, sixty-four", and thus it is an eban number.

Divisors: 1 2 4 7 8 14 16 23 28 46 56 92 112 161 184 322 368 644 1288 2576 25639 51278 102556 179473 205112 358946 410224 589697 717892 1179394 1435784 2358788 2871568 4127879 4717576 8255758 9435152 16511516 33023032 66046064