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66304142 = 2293113147
BaseRepresentation
bin1111110011101…
…1100010001110
311121202121011222
43330323202032
5113433213032
610325043342
71433401352
oct374734216
9147677158
1066304142
1134477313
121a256552
1310976528
148b3d462
155c4aa12
hex3f3b88e

66304142 has 8 divisors (see below), whose sum is σ = 99796536. Its totient is φ = 33038632.

The previous prime is 66304127. The next prime is 66304159. The reversal of 66304142 is 24140366.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55988 + ... + 57159.

It is an arithmetic number, because the mean of its divisors is an integer number (12474567).

Almost surely, 266304142 is an apocalyptic number.

66304142 is a deficient number, since it is larger than the sum of its proper divisors (33492394).

66304142 is a wasteful number, since it uses less digits than its factorization.

66304142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113442.

The product of its (nonzero) digits is 3456, while the sum is 26.

The square root of 66304142 is about 8142.7355354328. The cubic root of 66304142 is about 404.7438140016.

The spelling of 66304142 in words is "sixty-six million, three hundred four thousand, one hundred forty-two".

Divisors: 1 2 293 586 113147 226294 33152071 66304142