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53208780 = 22351914643
BaseRepresentation
bin1100101011111…
…0011011001100
310201010021201120
43022332123030
5102110140110
65140240540
71214160432
oct312763314
9121107646
1053208780
11280425a9
12159a0150
13b03cab1
1470d0d52
154a10870
hex32be6cc

53208780 has 48 divisors (see below), whose sum is σ = 149796864. Its totient is φ = 14111680.

The previous prime is 53208763. The next prime is 53208781. The reversal of 53208780 is 8780235.

It is not an unprimeable number, because it can be changed into a prime (53208781) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9139 + ... + 13781.

It is an arithmetic number, because the mean of its divisors is an integer number (3120768).

Almost surely, 253208780 is an apocalyptic number.

It is an amenable number.

53208780 is an abundant number, since it is smaller than the sum of its proper divisors (96588084).

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

53208780 is a wasteful number, since it uses less digits than its factorization.

53208780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4846 (or 4844 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 33.

The square root of 53208780 is about 7294.4348650187. The cubic root of 53208780 is about 376.1211602144.

The spelling of 53208780 in words is "fifty-three million, two hundred eight thousand, seven hundred eighty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 191 382 573 764 955 1146 1910 2292 2865 3820 4643 5730 9286 11460 13929 18572 23215 27858 46430 55716 69645 92860 139290 278580 886813 1773626 2660439 3547252 4434065 5320878 8868130 10641756 13302195 17736260 26604390 53208780