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66341065 = 571999761
BaseRepresentation
bin1111110100010…
…0100011001001
311121211110211111
43331010203021
5113440403230
610325530321
71433614120
oct375044311
9147743744
1066341065
11344a202a
121a2739a1
131098a28b
148b4cab7
155c5692a
hex3f448c9

66341065 has 16 divisors (see below), whose sum is σ = 95771520. Its totient is φ = 43096320.

The previous prime is 66341029. The next prime is 66341069. The reversal of 66341065 is 56014366.

66341065 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 66341065 - 211 = 66339017 is a prime.

It is a super-2 number, since 2×663410652 = 8802273810668450, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (66341069) 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 15 ways as a sum of consecutive naturals, for example, 49216 + ... + 50545.

It is an arithmetic number, because the mean of its divisors is an integer number (5985720).

Almost surely, 266341065 is an apocalyptic number.

It is an amenable number.

66341065 is a deficient number, since it is larger than the sum of its proper divisors (29430455).

66341065 is a wasteful number, since it uses less digits than its factorization.

66341065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99792.

The product of its (nonzero) digits is 12960, while the sum is 31.

The square root of 66341065 is about 8145.0024554938. The cubic root of 66341065 is about 404.8189303880.

The spelling of 66341065 in words is "sixty-six million, three hundred forty-one thousand, sixty-five".

Divisors: 1 5 7 19 35 95 133 665 99761 498805 698327 1895459 3491635 9477295 13268213 66341065