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520052560 = 24511935449
BaseRepresentation
bin11110111111110…
…101111101010000
31100020120101222221
4132333311331100
52031113140220
6123334310424
715613242136
oct3677657520
91306511887
10520052560
11247613205
121261b8414
1383986411
144d0d5756
15309c99aa
hex1eff5f50

520052560 has 40 divisors (see below), whose sum is σ = 1210357800. Its totient is φ = 207808512.

The previous prime is 520052557. The next prime is 520052573. The reversal of 520052560 is 65250025.

It can be written as a sum of positive squares in 4 ways, for example, as 5125696 + 514926864 = 2264^2 + 22692^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 92716 + ... + 98164.

It is an arithmetic number, because the mean of its divisors is an integer number (30258945).

Almost surely, 2520052560 is an apocalyptic number.

It is an amenable number.

520052560 is an abundant number, since it is smaller than the sum of its proper divisors (690305240).

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

520052560 is a wasteful number, since it uses less digits than its factorization.

520052560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6655 (or 6649 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 25.

The square root of 520052560 is about 22804.6609271000. The cubic root of 520052560 is about 804.1722443109.

The spelling of 520052560 in words is "five hundred twenty million, fifty-two thousand, five hundred sixty".

Divisors: 1 2 4 5 8 10 16 20 40 80 1193 2386 4772 5449 5965 9544 10898 11930 19088 21796 23860 27245 43592 47720 54490 87184 95440 108980 217960 435920 6500657 13001314 26002628 32503285 52005256 65006570 104010512 130013140 260026280 520052560