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313351420345 = 53171669118453
BaseRepresentation
bin1001000111101010011…
…00110011100110111001
31002221210222222110021221
410203311030303212321
520113220430422340
6355541320232041
731432066061155
oct4436514634671
91087728873257
10313351420345
11110989786a97
125089090b621
1323719c63132
1411248428065
15823e8ca44a
hex48f53339b9

313351420345 has 16 divisors (see below), whose sum is σ = 377437087440. Its totient is φ = 249738511104.

The previous prime is 313351420303. The next prime is 313351420367. The reversal of 313351420345 is 543024153313.

It can be written as a sum of positive squares in 8 ways, for example, as 110508375184 + 202843045161 = 332428^2 + 450381^2 .

It is a cyclic number.

It is not a de Polignac number, because 313351420345 - 29 = 313351419833 is a prime.

It is a super-2 number, since 2×3133514203452 (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 313351420345.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2586139 + ... + 2704591.

It is an arithmetic number, because the mean of its divisors is an integer number (23589817965).

Almost surely, 2313351420345 is an apocalyptic number.

It is an amenable number.

313351420345 is a deficient number, since it is larger than the sum of its proper divisors (64085667095).

313351420345 is a wasteful number, since it uses less digits than its factorization.

313351420345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120444.

The product of its (nonzero) digits is 64800, while the sum is 34.

Adding to 313351420345 its reverse (543024153313), we get a palindrome (856375573658).

The spelling of 313351420345 in words is "three hundred thirteen billion, three hundred fifty-one million, four hundred twenty thousand, three hundred forty-five".

Divisors: 1 5 317 1585 1669 8345 118453 529073 592265 2645365 37549601 187748005 197698057 988490285 62670284069 313351420345