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66480182 = 2311278443
BaseRepresentation
bin1111110110011…
…0100000110110
311122002112122222
43331212200312
5114004331212
610332522342
71435033526
oct375464066
9148075588
1066480182
11345875aa
121a3203b2
1310a086b2
148b87686
155c82c72
hex3f66836

66480182 has 16 divisors (see below), whose sum is σ = 103759872. Its totient is φ = 31910760.

The previous prime is 66480173. The next prime is 66480223. The reversal of 66480182 is 28108466.

It is a super-2 number, since 2×664801822 = 8839229197506248, which contains 22 as substring.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3653 + ... + 12095.

It is an arithmetic number, because the mean of its divisors is an integer number (6484992).

Almost surely, 266480182 is an apocalyptic number.

66480182 is a gapful number since it is divisible by the number (62) formed by its first and last digit.

66480182 is a deficient number, since it is larger than the sum of its proper divisors (37279690).

66480182 is a wasteful number, since it uses less digits than its factorization.

66480182 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8603.

The product of its (nonzero) digits is 18432, while the sum is 35.

The square root of 66480182 is about 8153.5380050626. The cubic root of 66480182 is about 405.1017008223.

The spelling of 66480182 in words is "sixty-six million, four hundred eighty thousand, one hundred eighty-two".

Divisors: 1 2 31 62 127 254 3937 7874 8443 16886 261733 523466 1072261 2144522 33240091 66480182