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505348880 = 2456316861
BaseRepresentation
bin11110000111110…
…000001100010000
31022012220101100012
4132013300030100
52013332131010
6122051214052
715344252231
oct3607601420
91265811305
10505348880
1123a290103
121212a7328
138090890a
144b189088
152e573005
hex1e1f0310

505348880 has 20 divisors (see below), whose sum is σ = 1174936332. Its totient is φ = 202139520.

The previous prime is 505348873. The next prime is 505348897. The reversal of 505348880 is 88843505.

It can be written as a sum of positive squares in 2 ways, for example, as 319408384 + 185940496 = 17872^2 + 13636^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3158351 + ... + 3158510.

Almost surely, 2505348880 is an apocalyptic number.

It is an amenable number.

505348880 is an abundant number, since it is smaller than the sum of its proper divisors (669587452).

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

505348880 is a wasteful number, since it uses less digits than its factorization.

505348880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6316874 (or 6316868 counting only the distinct ones).

The product of its (nonzero) digits is 153600, while the sum is 41.

The square root of 505348880 is about 22479.9661921454. The cubic root of 505348880 is about 796.5207655956.

The spelling of 505348880 in words is "five hundred five million, three hundred forty-eight thousand, eight hundred eighty".

Divisors: 1 2 4 5 8 10 16 20 40 80 6316861 12633722 25267444 31584305 50534888 63168610 101069776 126337220 252674440 505348880