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52782461988 = 22343102291593
BaseRepresentation
bin110001001010000101…
…000111010000100100
312001020111111212220120
4301022011013100210
51331044302240423
640125315201540
73545666344554
oct611205072044
9161214455816
1052782461988
1120426361a13
12a2908a62b0
134c92369339
1427aa0ab164
15158dcb7ee3
hexc4a147424

52782461988 has 24 divisors (see below), whose sum is σ = 126023243808. Its totient is φ = 17184987456.

The previous prime is 52782461969. The next prime is 52782461989. The reversal of 52782461988 is 88916428725.

It is not an unprimeable number, because it can be changed into a prime (52782461989) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51145281 + ... + 51146312.

It is an arithmetic number, because the mean of its divisors is an integer number (5250968492).

Almost surely, 252782461988 is an apocalyptic number.

It is an amenable number.

52782461988 is an abundant number, since it is smaller than the sum of its proper divisors (73240781820).

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

52782461988 is a wasteful number, since it uses less digits than its factorization.

52782461988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102291643 (or 102291641 counting only the distinct ones).

The product of its digits is 15482880, while the sum is 60.

The spelling of 52782461988 in words is "fifty-two billion, seven hundred eighty-two million, four hundred sixty-one thousand, nine hundred eighty-eight".

Divisors: 1 2 3 4 6 12 43 86 129 172 258 516 102291593 204583186 306874779 409166372 613749558 1227499116 4398538499 8797076998 13195615497 17594153996 26391230994 52782461988