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518082520 = 2352232412
BaseRepresentation
bin11110111000010…
…100111111011000
31100002212022121111
4132320110333120
52030112120040
6123224150104
715560425444
oct3670247730
91302768544
10518082520
1124649807a
12125608334
1383446807
144cb41824
153073adea
hex1ee14fd8

518082520 has 48 divisors (see below), whose sum is σ = 1175791680. Its totient is φ = 205447680.

The previous prime is 518082511. The next prime is 518082541. The reversal of 518082520 is 25280815.

It is a congruent number.

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 11 ways as a sum of consecutive naturals, for example, 2149600 + ... + 2149840.

It is an arithmetic number, because the mean of its divisors is an integer number (24495660).

Almost surely, 2518082520 is an apocalyptic number.

It is an amenable number.

518082520 is an abundant number, since it is smaller than the sum of its proper divisors (657709160).

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

518082520 is a wasteful number, since it uses less digits than its factorization.

518082520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 716 (or 471 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 31.

The square root of 518082520 is about 22761.4261416107. The cubic root of 518082520 is about 803.1555161988.

The spelling of 518082520 in words is "five hundred eighteen million, eighty-two thousand, five hundred twenty".

Divisors: 1 2 4 5 8 10 20 40 223 241 446 482 892 964 1115 1205 1784 1928 2230 2410 4460 4820 8920 9640 53743 58081 107486 116162 214972 232324 268715 290405 429944 464648 537430 580810 1074860 1161620 2149720 2323240 12952063 25904126 51808252 64760315 103616504 129520630 259041260 518082520