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212750345395 = 57371073893947
BaseRepresentation
bin1100011000100011101…
…0001010010010110011
3202100010221022100020001
43012020322022102303
511441203042023040
6241423002130431
721241103045440
oct3061072122263
9670127270201
10212750345395
1182255029435
12352957b0a17
13170a6a6c753
14a4236209c7
155802a0e59a
hex3188e8a4b3

212750345395 has 64 divisors (see below), whose sum is σ = 303312522240. Its totient is φ = 140219500032.

The previous prime is 212750345341. The next prime is 212750345399. The reversal of 212750345395 is 593543057212.

It is a cyclic number.

It is not a de Polignac number, because 212750345395 - 227 = 212616127667 is a prime.

It is not an unprimeable number, because it can be changed into a prime (212750345399) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 53899812 + ... + 53903758.

It is an arithmetic number, because the mean of its divisors is an integer number (4739258160).

Almost surely, 2212750345395 is an apocalyptic number.

212750345395 is a deficient number, since it is larger than the sum of its proper divisors (90562176845).

212750345395 is a wasteful number, since it uses less digits than its factorization.

212750345395 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4492.

The product of its (nonzero) digits is 1134000, while the sum is 46.

The spelling of 212750345395 in words is "two hundred twelve billion, seven hundred fifty million, three hundred forty-five thousand, three hundred ninety-five".

Divisors: 1 5 7 35 37 107 185 259 389 535 749 1295 1945 2723 3745 3947 3959 13615 14393 19735 19795 27629 27713 41623 71965 100751 138145 138565 146039 208115 291361 422329 503755 730195 1022273 1456805 1535383 1540051 2111645 2956303 5111365 7676915 7700255 10747681 10780357 14781515 15626173 53738405 53901785 56809171 78130865 109383211 164285981 284045855 397664197 546916055 821429905 1150001867 1988320985 5750009335 6078581297 30392906485 42550069079 212750345395