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520678030 = 2555793479
BaseRepresentation
bin11111000010001…
…110101010001110
31100021202011222111
4133002032222032
52031243144110
6123355534234
715621455515
oct3702165216
91307664874
10520678030
11247a00124
1212645a37a
1383b45012
144d21967c
1530a9ee8a
hex1f08ea8e

520678030 has 16 divisors (see below), whose sum is σ = 938913120. Its totient is φ = 207895072.

The previous prime is 520678027. The next prime is 520678043. The reversal of 520678030 is 30876025.

It is a super-2 number, since 2×5206780302 = 542211221849361800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 520677983 and 520678001.

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, 41170 + ... + 52309.

It is an arithmetic number, because the mean of its divisors is an integer number (58682070).

Almost surely, 2520678030 is an apocalyptic number.

520678030 is a deficient number, since it is larger than the sum of its proper divisors (418235090).

520678030 is a wasteful number, since it uses less digits than its factorization.

520678030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94043.

The product of its (nonzero) digits is 10080, while the sum is 31.

The square root of 520678030 is about 22818.3704501439. The cubic root of 520678030 is about 804.4945092376.

The spelling of 520678030 in words is "five hundred twenty million, six hundred seventy-eight thousand, thirty".

Divisors: 1 2 5 10 557 1114 2785 5570 93479 186958 467395 934790 52067803 104135606 260339015 520678030