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82166084 = 227111320521
BaseRepresentation
bin1001110010111…
…00000101000100
312201121110200022
410321130011010
5132013303314
612053034312
72015254160
oct471340504
9181543608
1082166084
1142420660
1223625998
131403b2b0
14acabca0
15733078e
hex4e5c144

82166084 has 48 divisors (see below), whose sum is σ = 193070976. Its totient is φ = 29548800.

The previous prime is 82166069. The next prime is 82166093. The reversal of 82166084 is 48066128.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6257 + ... + 14264.

It is an arithmetic number, because the mean of its divisors is an integer number (4022312).

Almost surely, 282166084 is an apocalyptic number.

It is an amenable number.

82166084 is an abundant number, since it is smaller than the sum of its proper divisors (110904892).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

82166084 is a wasteful number, since it uses less digits than its factorization.

82166084 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20556 (or 20554 counting only the distinct ones).

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

The square root of 82166084 is about 9064.5509541289. The cubic root of 82166084 is about 434.7412633188.

The spelling of 82166084 in words is "eighty-two million, one hundred sixty-six thousand, eighty-four".

Divisors: 1 2 4 7 11 13 14 22 26 28 44 52 77 91 143 154 182 286 308 364 572 1001 2002 4004 20521 41042 82084 143647 225731 266773 287294 451462 533546 574588 902924 1067092 1580117 1867411 2934503 3160234 3734822 5869006 6320468 7469644 11738012 20541521 41083042 82166084