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66830084 = 22431013847
BaseRepresentation
bin1111111011101…
…1111100000100
311122202022122022
43332323330010
5114102030314
610344222312
71441021616
oct376737404
9148668568
1066830084
11347a6482
121a46a998
1310acba39
148c38db6
155d0178e
hex3fbbf04

66830084 has 24 divisors (see below), whose sum is σ = 120888768. Its totient is φ = 32306400.

The previous prime is 66830063. The next prime is 66830117. The reversal of 66830084 is 48003866.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15449 + ... + 19295.

It is an arithmetic number, because the mean of its divisors is an integer number (5037032).

Almost surely, 266830084 is an apocalyptic number.

It is an amenable number.

66830084 is a deficient number, since it is larger than the sum of its proper divisors (54058684).

66830084 is a wasteful number, since it uses less digits than its factorization.

66830084 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3995 (or 3993 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 35.

The square root of 66830084 is about 8174.9669112480. The cubic root of 66830084 is about 405.8111751056.

The spelling of 66830084 in words is "sixty-six million, eight hundred thirty thousand, eighty-four".

Divisors: 1 2 4 43 86 101 172 202 404 3847 4343 7694 8686 15388 17372 165421 330842 388547 661684 777094 1554188 16707521 33415042 66830084