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13231113404 = 2238363113687
BaseRepresentation
bin11000101001010001…
…01100010010111100
31021011002200012110012
430110220230102330
5204044131112104
610024524402352
7645610415435
oct142450542274
937132605405
1013231113404
11567a689373
1226930a63b8
13132b2309b2
148d732a48c
155268a4d6e
hex314a2c4bc

13231113404 has 24 divisors (see below), whose sum is σ = 23253393408. Its totient is φ = 6587345520.

The previous prime is 13231113347. The next prime is 13231113419. The reversal of 13231113404 is 40431113231.

It is a self number, because there is not a number n which added to its sum of digits gives 13231113404.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 959849 + ... + 973535.

It is an arithmetic number, because the mean of its divisors is an integer number (968891392).

Almost surely, 213231113404 is an apocalyptic number.

It is an amenable number.

13231113404 is a deficient number, since it is larger than the sum of its proper divisors (10022280004).

13231113404 is a wasteful number, since it uses less digits than its factorization.

13231113404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14705 (or 14703 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 13231113404 its reverse (40431113231), we get a palindrome (53662226635).

The spelling of 13231113404 in words is "thirteen billion, two hundred thirty-one million, one hundred thirteen thousand, four hundred four".

Divisors: 1 2 4 383 631 766 1262 1532 2524 13687 27374 54748 241673 483346 966692 5242121 8636497 10484242 17272994 20968484 34545988 3307778351 6615556702 13231113404