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52782886260 = 223251322556789
BaseRepresentation
bin110001001010000110…
…101110110101110100
312001020112022102220100
4301022012232311310
51331044404330020
640125332234100
73546003062526
oct611206566564
9161215272810
1052782886260
1120426621755
12a290a6b930
134c924874a0
1427aa17ba16
15158dd4da90
hexc4a1aed74

52782886260 has 72 divisors (see below), whose sum is σ = 172424102760. Its totient is φ = 12992709888.

The previous prime is 52782886223. The next prime is 52782886309. The reversal of 52782886260 is 6268828725.

52782886260 is a `hidden beast` number, since 5 + 2 + 7 + 8 + 2 + 8 + 8 + 626 + 0 = 666.

52782886260 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 10542771684 + 42240114576 = 102678^2 + 205524^2 .

It is a junction number, because it is equal to n+sod(n) for n = 52782886197 and 52782886206.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11276055 + ... + 11280734.

It is an arithmetic number, because the mean of its divisors is an integer number (2394779205).

Almost surely, 252782886260 is an apocalyptic number.

It is an amenable number.

52782886260 is an abundant number, since it is smaller than the sum of its proper divisors (119641216500).

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

52782886260 is a wasteful number, since it uses less digits than its factorization.

52782886260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22556817 (or 22556812 counting only the distinct ones).

The product of its (nonzero) digits is 5160960, while the sum is 54.

The spelling of 52782886260 in words is "fifty-two billion, seven hundred eighty-two million, eight hundred eighty-six thousand, two hundred sixty".

Divisors: 1 2 3 4 5 6 9 10 12 13 15 18 20 26 30 36 39 45 52 60 65 78 90 117 130 156 180 195 234 260 390 468 585 780 1170 2340 22556789 45113578 67670367 90227156 112783945 135340734 203011101 225567890 270681468 293238257 338351835 406022202 451135780 586476514 676703670 812044404 879714771 1015055505 1172953028 1353407340 1466191285 1759429542 2030111010 2639144313 2932382570 3518859084 4060222020 4398573855 5278288626 5864765140 8797147710 10556577252 13195721565 17594295420 26391443130 52782886260