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13001231313 = 327206368751
BaseRepresentation
bin11000001101110111…
…10000101111010001
31020120002002222111200
430012323300233101
5203111303400223
65550033301413
7640116433320
oct140673605721
936502088450
1013001231313
115571946574
12262a104869
1312c27132a5
148b49aa0b7
155115e6a43
hex306ef0bd1

13001231313 has 12 divisors (see below), whose sum is σ = 21462350208. Its totient is φ = 7429275000.

The previous prime is 13001231293. The next prime is 13001231333. The reversal of 13001231313 is 31313210031.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (13001231293) and next prime (13001231333).

It is not a de Polignac number, because 13001231313 - 28 = 13001231057 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13001231333) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 103184313 + ... + 103184438.

It is an arithmetic number, because the mean of its divisors is an integer number (1788529184).

Almost surely, 213001231313 is an apocalyptic number.

It is an amenable number.

13001231313 is a deficient number, since it is larger than the sum of its proper divisors (8461118895).

13001231313 is a wasteful number, since it uses less digits than its factorization.

13001231313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 206368764 (or 206368761 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 18.

Adding to 13001231313 its reverse (31313210031), we get a palindrome (44314441344).

The spelling of 13001231313 in words is "thirteen billion, one million, two hundred thirty-one thousand, three hundred thirteen".

Divisors: 1 3 7 9 21 63 206368751 619106253 1444581257 1857318759 4333743771 13001231313