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52780052528 = 247471250469
BaseRepresentation
bin110001001001111011…
…111011000000110000
312001020022222110202022
4301021323323000300
51331043143140103
640125151411012
73545640021110
oct611173730060
9161208873668
1052780052528
1120424a66725
12a28bb23a68
134c91a04718
1427a9a41040
15158d98e138
hexc49efb030

52780052528 has 20 divisors (see below), whose sum is σ = 116870116560. Its totient is φ = 22620022464.

The previous prime is 52780052503. The next prime is 52780052531. The reversal of 52780052528 is 82525008725.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 235625123 + ... + 235625346.

It is an arithmetic number, because the mean of its divisors is an integer number (5843505828).

Almost surely, 252780052528 is an apocalyptic number.

It is an amenable number.

52780052528 is an abundant number, since it is smaller than the sum of its proper divisors (64090064032).

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

52780052528 is a wasteful number, since it uses less digits than its factorization.

52780052528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 471250484 (or 471250478 counting only the distinct ones).

The product of its (nonzero) digits is 448000, while the sum is 44.

The spelling of 52780052528 in words is "fifty-two billion, seven hundred eighty million, fifty-two thousand, five hundred twenty-eight".

Divisors: 1 2 4 7 8 14 16 28 56 112 471250469 942500938 1885001876 3298753283 3770003752 6597506566 7540007504 13195013132 26390026264 52780052528