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1311357465275 = 5211131515474441
BaseRepresentation
bin10011000101010010111…
…111101111001010111011
311122100211202102110122012
4103011102333233022323
5132441130002342100
62442232421320135
7163512442353134
oct23052277571273
94570752373565
101311357465275
11466164113a30
12192196b6604b
13968780bcbb0
1447681b0ac8b
15241a1075135
hex13152fef2bb

1311357465275 has 96 divisors (see below), whose sum is σ = 1926964333056. Its totient is φ = 872726400000.

The previous prime is 1311357465269. The next prime is 1311357465281. The reversal of 1311357465275 is 5725647531131.

It is an interprime number because it is at equal distance from previous prime (1311357465269) and next prime (1311357465281).

It is not a de Polignac number, because 1311357465275 - 26 = 1311357465211 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 295282055 + ... + 295286495.

It is an arithmetic number, because the mean of its divisors is an integer number (20072545136).

Almost surely, 21311357465275 is an apocalyptic number.

1311357465275 is a deficient number, since it is larger than the sum of its proper divisors (615606867781).

1311357465275 is a wasteful number, since it uses less digits than its factorization.

1311357465275 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5173 (or 5168 counting only the distinct ones).

The product of its digits is 2646000, while the sum is 50.

The spelling of 1311357465275 in words is "one trillion, three hundred eleven billion, three hundred fifty-seven million, four hundred sixty-five thousand, two hundred seventy-five".

Divisors: 1 5 11 13 25 55 65 143 151 275 325 547 715 755 1661 1963 2735 3575 3775 4441 6017 7111 8305 9815 13675 21593 22205 30085 35555 41525 48851 49075 57733 78221 82597 107965 111025 150425 177775 244255 288665 391105 412985 539825 635063 670591 908567 1073761 1221275 1443325 1955525 2064925 2429227 3175315 3352955 4542835 5368805 7376501 8717683 11811371 12146135 15876575 16764775 22714175 26721497 26844025 31579951 36882505 43588415 59056855 60730675 95894513 133607485 157899755 184412525 217942075 295284275 347379461 366813277 479472565 668037425 789498775 1736897305 1834066385 2397362825 4034946047 4768572601 8684486525 9170331925 20174730235 23842863005 52454298611 100873651175 119214315025 262271493055 1311357465275