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317271011993 = 13110922006729
BaseRepresentation
bin1001001110111101101…
…00110111001010011001
31010022221011101100012222
410213132310313022121
520144232334340433
6401430254513425
731631162051105
oct4473664671231
91108834340188
10317271011993
11112610240231
12515a5505875
1323bc3010630
14114dac0a905
1583bda6ab98
hex49ded37299

317271011993 has 8 divisors (see below), whose sum is σ = 341984584200. Its totient is φ = 292601455488.

The previous prime is 317271011971. The next prime is 317271012007. The reversal of 317271011993 is 399110172713.

It can be written as a sum of positive squares in 4 ways, for example, as 11580342544 + 305690669449 = 107612^2 + 552893^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 317271011993 - 218 = 317270749849 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (317271011693) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10988948 + ... + 11017781.

It is an arithmetic number, because the mean of its divisors is an integer number (42748073025).

Almost surely, 2317271011993 is an apocalyptic number.

It is an amenable number.

317271011993 is a deficient number, since it is larger than the sum of its proper divisors (24713572207).

317271011993 is a wasteful number, since it uses less digits than its factorization.

317271011993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22007851.

The product of its (nonzero) digits is 71442, while the sum is 44.

The spelling of 317271011993 in words is "three hundred seventeen billion, two hundred seventy-one million, eleven thousand, nine hundred ninety-three".

Divisors: 1 13 1109 14417 22006729 286087477 24405462461 317271011993