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38827640370285 = 3351365713366917
BaseRepresentation
bin10001101010000010000111…
…01101100011010001101101
312002110212221000110012021000
420311001003231203101231
520042123001413322120
6214325101032430513
711115130060442424
oct1065010355432155
9162425830405230
1038827640370285
111140a789833308
124431082248439
13188857a552460
149833a6c882bb
15474ee190a990
hex235043b6346d

38827640370285 has 64 divisors (see below), whose sum is σ = 74348013922560. Its totient is φ = 19112231335680.

The previous prime is 38827640370257. The next prime is 38827640370289. The reversal of 38827640370285 is 58207304672883.

38827640370285 is a `hidden beast` number, since 3 + 8 + 82 + 7 + 6 + 403 + 70 + 2 + 85 = 666.

It is not a de Polignac number, because 38827640370285 - 218 = 38827640108141 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38827640370289) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 9848647 + ... + 13215563.

It is an arithmetic number, because the mean of its divisors is an integer number (1161687717540).

Almost surely, 238827640370285 is an apocalyptic number.

It is an amenable number.

38827640370285 is a deficient number, since it is larger than the sum of its proper divisors (35520373552275).

38827640370285 is a wasteful number, since it uses less digits than its factorization.

38827640370285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3373515 (or 3373509 counting only the distinct ones).

The product of its (nonzero) digits is 108380160, while the sum is 63.

The spelling of 38827640370285 in words is "thirty-eight trillion, eight hundred twenty-seven billion, six hundred forty million, three hundred seventy thousand, two hundred eighty-five".

Divisors: 1 3 5 9 13 15 27 39 45 65 117 135 195 351 585 1755 6571 19713 32855 59139 85423 98565 177417 256269 295695 427115 768807 887085 1281345 2306421 3366917 3844035 10100751 11532105 16834585 30302253 43769921 50503755 90906759 131309763 151511265 218849605 393929289 454533795 656548815 1181787867 1969646445 5908939335 22124011607 66372034821 110620058035 199116104463 287612150891 331860174105 597348313389 862836452673 995580522315 1438060754455 2588509358019 2986741566945 4314182263365 7765528074057 12942546790095 38827640370285