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66080452 = 2225216553
BaseRepresentation
bin1111110000010…
…0111011000100
311121100020100011
43330010323010
5113404033302
610320200004
71431450244
oct374047304
9147306304
1066080452
1134334249
121a169004
13108c8779
148ac1b24
155c045d7
hex3f04ec4

66080452 has 12 divisors (see below), whose sum is σ = 115704316. Its totient is φ = 33022080.

The previous prime is 66080447. The next prime is 66080459. The reversal of 66080452 is 25408066.

66080452 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 6728836 + 59351616 = 2594^2 + 7704^2 .

It is a super-2 number, since 2×660804522 = 8733252273048608, which contains 22 as substring.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (66080459) 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, 6808 + ... + 13360.

Almost surely, 266080452 is an apocalyptic number.

It is an amenable number.

66080452 is a deficient number, since it is larger than the sum of its proper divisors (49623864).

66080452 is a wasteful number, since it uses less digits than its factorization.

66080452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9078 (or 9076 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 31.

The square root of 66080452 is about 8128.9883749456. The cubic root of 66080452 is about 404.2881403578.

The spelling of 66080452 in words is "sixty-six million, eighty thousand, four hundred fifty-two".

Divisors: 1 2 4 2521 5042 6553 10084 13106 26212 16520113 33040226 66080452