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13231310404 = 2213254448277
BaseRepresentation
bin11000101001010010…
…11100011001000100
31021011010001012200111
430110221130121010
5204044203413104
610024532522404
7645612165664
oct142451343104
937133035614
1013231310404
11567a803384
122693180404
13132b29c570
148d737c1a4
155268e3404
hex314a5c644

13231310404 has 12 divisors (see below), whose sum is σ = 24935931244. Its totient is φ = 6106758624.

The previous prime is 13231310381. The next prime is 13231310413. The reversal of 13231310404 is 40401313231.

It can be written as a sum of positive squares in 2 ways, for example, as 7700413504 + 5530896900 = 87752^2 + 74370^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 127224087 + ... + 127224190.

Almost surely, 213231310404 is an apocalyptic number.

It is an amenable number.

13231310404 is a deficient number, since it is larger than the sum of its proper divisors (11704620840).

13231310404 is a wasteful number, since it uses less digits than its factorization.

13231310404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 254448294 (or 254448292 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 13231310404 its reverse (40401313231), we get a palindrome (53632623635).

The spelling of 13231310404 in words is "thirteen billion, two hundred thirty-one million, three hundred ten thousand, four hundred four".

Divisors: 1 2 4 13 26 52 254448277 508896554 1017793108 3307827601 6615655202 13231310404