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494520494 = 21331613549
BaseRepresentation
bin11101011110011…
…100100010101110
31021110112020120212
4131132130202232
52003044123434
6121023142422
715153232466
oct3536344256
91243466525
10494520494
11234164626
12119744a12
137b5b6ca0
144996aba6
152d6348ce
hex1d79c8ae

494520494 has 16 divisors (see below), whose sum is σ = 824611200. Its totient is φ = 220877280.

The previous prime is 494520491. The next prime is 494520517. The reversal of 494520494 is 494025494.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (494520491) by changing a digit.

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, 305969 + ... + 307580.

It is an arithmetic number, because the mean of its divisors is an integer number (51538200).

Almost surely, 2494520494 is an apocalyptic number.

494520494 is a deficient number, since it is larger than the sum of its proper divisors (330090706).

494520494 is a wasteful number, since it uses less digits than its factorization.

494520494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 613595.

The product of its (nonzero) digits is 207360, while the sum is 41.

The square root of 494520494 is about 22237.8167543489. The cubic root of 494520494 is about 790.7904783407.

The spelling of 494520494 in words is "four hundred ninety-four million, five hundred twenty thousand, four hundred ninety-four".

Divisors: 1 2 13 26 31 62 403 806 613549 1227098 7976137 15952274 19020019 38040038 247260247 494520494