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52016668280 = 2354330242249
BaseRepresentation
bin110000011100011011…
…110101111001111000
311222021010112112102122
4300130123311321320
51323012231341110
635521321420412
73521010246053
oct603433657170
9158233475378
1052016668280
1120073064855
12a0b833a708
134b9c801b75
1427364c7a9a
15154694b255
hexc1c6f5e78

52016668280 has 32 divisors (see below), whose sum is σ = 119759310000. Its totient is φ = 20322790656.

The previous prime is 52016668273. The next prime is 52016668321. The reversal of 52016668280 is 8286661025.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15119405 + ... + 15122844.

Almost surely, 252016668280 is an apocalyptic number.

It is an amenable number.

52016668280 is an abundant number, since it is smaller than the sum of its proper divisors (67742641720).

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

52016668280 is a wasteful number, since it uses less digits than its factorization.

52016668280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30242303 (or 30242299 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 44.

The spelling of 52016668280 in words is "fifty-two billion, sixteen million, six hundred sixty-eight thousand, two hundred eighty".

Divisors: 1 2 4 5 8 10 20 40 43 86 172 215 344 430 860 1720 30242249 60484498 120968996 151211245 241937992 302422490 604844980 1209689960 1300416707 2600833414 5201666828 6502083535 10403333656 13004167070 26008334140 52016668280