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82288730 = 2567122819
BaseRepresentation
bin1001110011110…
…10000001011010
312201211200220202
410321322001122
5132031214410
612055422202
72016304556
oct471720132
9181750822
1082288730
11424a4817
1223684962
1314082074
14ad00866
157356ca5
hex4e7a05a

82288730 has 16 divisors (see below), whose sum is σ = 150331680. Its totient is φ = 32423952.

The previous prime is 82288711. The next prime is 82288741. The reversal of 82288730 is 3788228.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60740 + ... + 62079.

It is an arithmetic number, because the mean of its divisors is an integer number (9395730).

Almost surely, 282288730 is an apocalyptic number.

82288730 is a deficient number, since it is larger than the sum of its proper divisors (68042950).

82288730 is a wasteful number, since it uses less digits than its factorization.

82288730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122893.

The product of its (nonzero) digits is 43008, while the sum is 38.

The square root of 82288730 is about 9071.3135763240. The cubic root of 82288730 is about 434.9574627010.

The spelling of 82288730 in words is "eighty-two million, two hundred eighty-eight thousand, seven hundred thirty".

Divisors: 1 2 5 10 67 134 335 670 122819 245638 614095 1228190 8228873 16457746 41144365 82288730