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53256105080 = 23567109182309
BaseRepresentation
bin110001100110010011…
…111010110001111000
312002110111202110002022
4301212103322301320
51333032030330310
640244315054012
73563510265323
oct614623726170
9162414673068
1053256105080
1120649756a92
12a3a3441308
135039523719
142812d617ba
1515ba676a55
hexc664fac78

53256105080 has 64 divisors (see below), whose sum is σ = 122731092000. Its totient is φ = 20791862784.

The previous prime is 53256105079. The next prime is 53256105107. The reversal of 53256105080 is 8050165235.

It is a self number, because there is not a number n which added to its sum of digits gives 53256105080.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 200966 + ... + 383274.

Almost surely, 253256105080 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 53256105080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (61365546000).

53256105080 is an abundant number, since it is smaller than the sum of its proper divisors (69474986920).

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

53256105080 is a wasteful number, since it uses less digits than its factorization.

53256105080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182496 (or 182492 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 35.

The spelling of 53256105080 in words is "fifty-three billion, two hundred fifty-six million, one hundred five thousand, eighty".

Divisors: 1 2 4 5 8 10 20 40 67 109 134 218 268 335 436 536 545 670 872 1090 1340 2180 2680 4360 7303 14606 29212 36515 58424 73030 146060 182309 292120 364618 729236 911545 1458472 1823090 3646180 7292360 12214703 19871681 24429406 39743362 48858812 61073515 79486724 97717624 99358405 122147030 158973448 198716810 244294060 397433620 488588120 794867240 1331402627 2662805254 5325610508 6657013135 10651221016 13314026270 26628052540 53256105080