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317984752513 = 13116487147229
BaseRepresentation
bin1001010000010010101…
…11100100001110000001
31010101202220102010011001
410220021113210032001
520202213044040023
6402025152452001
731654646541211
oct4501127441601
91111686363131
10317984752513
1111294711502a
125176454a001
1323ca7b50cbc
1411567920241
1584115546ad
hex4a095e4381

317984752513 has 8 divisors (see below), whose sum is σ = 320433727680. Its totient is φ = 315536105040.

The previous prime is 317984752493. The next prime is 317984752583. The reversal of 317984752513 is 315257489713.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-317984752513 is a prime.

It is a super-2 number, since 2×3179847525132 (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (317984752583) 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, 2086183 + ... + 2233411.

It is an arithmetic number, because the mean of its divisors is an integer number (40054215960).

Almost surely, 2317984752513 is an apocalyptic number.

It is an amenable number.

317984752513 is a deficient number, since it is larger than the sum of its proper divisors (2448975167).

317984752513 is a wasteful number, since it uses less digits than its factorization.

317984752513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163847.

The product of its digits is 6350400, while the sum is 55.

The spelling of 317984752513 in words is "three hundred seventeen billion, nine hundred eighty-four million, seven hundred fifty-two thousand, five hundred thirteen".

Divisors: 1 131 16487 147229 2159797 19286999 2427364523 317984752513