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520960404 = 223103521809
BaseRepresentation
bin11111000011010…
…011100110010100
31100022021112022210
4133003103212110
52031331213104
6123405553420
715624042666
oct3703234624
91308245283
10520960404
11248083298
12126575870
1383c136c3
144d290536
1530b08989
hex1f0d3994

520960404 has 48 divisors (see below), whose sum is σ = 1231251840. Its totient is φ = 171425280.

The previous prime is 520960403. The next prime is 520960417. The reversal of 520960404 is 404069025.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520960403) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 643552 + ... + 644360.

It is an arithmetic number, because the mean of its divisors is an integer number (25651080).

Almost surely, 2520960404 is an apocalyptic number.

It is an amenable number.

520960404 is an abundant number, since it is smaller than the sum of its proper divisors (710291436).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

520960404 is a wasteful number, since it uses less digits than its factorization.

520960404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1440 (or 1438 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 520960404 is about 22824.5570384181. The cubic root of 520960404 is about 804.6399140533.

The spelling of 520960404 in words is "five hundred twenty million, nine hundred sixty thousand, four hundred four".

Divisors: 1 2 3 4 6 12 103 206 309 412 521 618 809 1042 1236 1563 1618 2084 2427 3126 3236 4854 6252 9708 53663 83327 107326 160989 166654 214652 249981 321978 333308 421489 499962 643956 842978 999924 1264467 1685956 2528934 5057868 43413367 86826734 130240101 173653468 260480202 520960404