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82730930 = 2567123479
BaseRepresentation
bin1001110111001…
…01111110110010
312202200011111112
410323211332302
5132134342210
612113113322
72023126022
oct473457662
9182604445
1082730930
1142776a77
1223858842
13141a8419
14adb7a82
1573e2d05
hex4ee5fb2

82730930 has 16 divisors (see below), whose sum is σ = 151139520. Its totient is φ = 32598192.

The previous prime is 82730903. The next prime is 82730953. The reversal of 82730930 is 3903728.

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, 61070 + ... + 62409.

It is an arithmetic number, because the mean of its divisors is an integer number (9446220).

Almost surely, 282730930 is an apocalyptic number.

82730930 is a deficient number, since it is larger than the sum of its proper divisors (68408590).

82730930 is a wasteful number, since it uses less digits than its factorization.

82730930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123553.

The product of its (nonzero) digits is 9072, while the sum is 32.

The square root of 82730930 is about 9095.6544569371. The cubic root of 82730930 is about 435.7351904586.

The spelling of 82730930 in words is "eighty-two million, seven hundred thirty thousand, nine hundred thirty".

Divisors: 1 2 5 10 67 134 335 670 123479 246958 617395 1234790 8273093 16546186 41365465 82730930