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520494333 = 32814791289
BaseRepresentation
bin11111000001100…
…001110011111101
31100021101211222220
4133001201303331
52031221304313
6123351555553
715620062122
oct3701416375
91307354886
10520494333
11247895107
1212638bbb9
1383aac518
144d1ac749
1530a65823
hex1f061cfd

520494333 has 16 divisors (see below), whose sum is σ = 698457600. Its totient is φ = 344771840.

The previous prime is 520494313. The next prime is 520494361. The reversal of 520494333 is 333494025.

It is a cyclic number.

It is not a de Polignac number, because 520494333 - 26 = 520494269 is a prime.

It is a super-2 number, since 2×5204943332 = 541828701370229778, which contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 520494294 and 520494303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520494313) 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 15 ways as a sum of consecutive naturals, for example, 403153 + ... + 404441.

It is an arithmetic number, because the mean of its divisors is an integer number (43653600).

Almost surely, 2520494333 is an apocalyptic number.

It is an amenable number.

520494333 is a deficient number, since it is larger than the sum of its proper divisors (177963267).

520494333 is a wasteful number, since it uses less digits than its factorization.

520494333 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2052.

The product of its (nonzero) digits is 38880, while the sum is 33.

The square root of 520494333 is about 22814.3448952627. The cubic root of 520494333 is about 804.3998886326.

The spelling of 520494333 in words is "five hundred twenty million, four hundred ninety-four thousand, three hundred thirty-three".

Divisors: 1 3 281 479 843 1289 1437 3867 134599 362209 403797 617431 1086627 1852293 173498111 520494333