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82054173 = 3891911609
BaseRepresentation
bin1001110010000…
…00110000011101
312201101210011110
410321000300131
5132001213143
612050412233
72014306665
oct471006035
9181353143
1082054173
1142354573
1223591079
1313ccc386
14ac7d1a5
15730c533
hex4e40c1d

82054173 has 16 divisors (see below), whose sum is σ = 111283200. Its totient is φ = 53771520.

The previous prime is 82054171. The next prime is 82054187. The reversal of 82054173 is 37145028.

It is not a de Polignac number, because 82054173 - 21 = 82054171 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 82054173.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82054171) by changing a digit.

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, 50193 + ... + 51801.

It is an arithmetic number, because the mean of its divisors is an integer number (6955200).

Almost surely, 282054173 is an apocalyptic number.

It is an amenable number.

82054173 is a deficient number, since it is larger than the sum of its proper divisors (29229027).

82054173 is a wasteful number, since it uses less digits than its factorization.

82054173 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1892.

The product of its (nonzero) digits is 6720, while the sum is 30.

The square root of 82054173 is about 9058.3758477996. The cubic root of 82054173 is about 434.5437997094.

The spelling of 82054173 in words is "eighty-two million, fifty-four thousand, one hundred seventy-three".

Divisors: 1 3 89 191 267 573 1609 4827 16999 50997 143201 307319 429603 921957 27351391 82054173