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814081346815 = 51131271795381
BaseRepresentation
bin10111101100010110000…
…01111000110011111111
32212211021201200021102011
423312023001320303333
5101314214311044230
61421552300312051
7112546460163202
oct13661301706377
92784251607364
10814081346815
11294282774000
12111936242627
135b9c939a959
142b58a575939
1516299642e2a
hexbd8b078cff

814081346815 has 64 divisors (see below), whose sum is σ = 1089227243520. Its totient is φ = 584007177600.

The previous prime is 814081346809. The next prime is 814081346899. The reversal of 814081346815 is 518643180418.

It is not a de Polignac number, because 814081346815 - 23 = 814081346807 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 151285425 + ... + 151290805.

It is an arithmetic number, because the mean of its divisors is an integer number (17019175680).

Almost surely, 2814081346815 is an apocalyptic number.

814081346815 is a deficient number, since it is larger than the sum of its proper divisors (275145896705).

814081346815 is a wasteful number, since it uses less digits than its factorization.

814081346815 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5725 (or 5703 counting only the distinct ones).

The product of its (nonzero) digits is 737280, while the sum is 49.

The spelling of 814081346815 in words is "eight hundred fourteen billion, eighty-one million, three hundred forty-six thousand, eight hundred fifteen".

Divisors: 1 5 11 55 121 127 179 605 635 895 1331 1397 1969 5381 6655 6985 9845 15367 21659 22733 26905 59191 76835 108295 113665 169037 238249 250063 295955 651101 683387 845185 963199 1191245 1250315 2750693 3255505 3416935 4815995 7162111 7517257 10595189 13753465 30257623 35810555 37586285 52975945 82689827 116547079 122326273 151288115 413449135 582735395 611631365 909588097 1282017869 1345589003 4547940485 6410089345 6727945015 14801479033 74007395165 162816269363 814081346815