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28472040067288 = 237945050696309
BaseRepresentation
bin1100111100101001010011…
…10101011001000011011000
310201210220022102111212121011
412132110221311121003120
512212441214224123123
6140315512531023304
75666015460301636
oct636245165310330
9121726272455534
1028472040067288
119087a19398464
12323a0a473ab34
1312b6b954c627c
147060a8600356
15345952e7ee0d
hex19e529d590d8

28472040067288 has 16 divisors (see below), whose sum is σ = 54060835572000. Its totient is φ = 14055817248096.

The previous prime is 28472040067277. The next prime is 28472040067297. The reversal of 28472040067288 is 88276004027482.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22525347523 + ... + 22525348786.

It is an arithmetic number, because the mean of its divisors is an integer number (3378802223250).

Almost surely, 228472040067288 is an apocalyptic number.

It is an amenable number.

28472040067288 is a deficient number, since it is larger than the sum of its proper divisors (25588795504712).

28472040067288 is a wasteful number, since it uses less digits than its factorization.

28472040067288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45050696394 (or 45050696390 counting only the distinct ones).

The product of its (nonzero) digits is 19267584, while the sum is 58.

The spelling of 28472040067288 in words is "twenty-eight trillion, four hundred seventy-two billion, forty million, sixty-seven thousand, two hundred eighty-eight".

Divisors: 1 2 4 8 79 158 316 632 45050696309 90101392618 180202785236 360405570472 3559005008411 7118010016822 14236020033644 28472040067288