Search a number
-
+
13525401212 = 2217449442991
BaseRepresentation
bin11001001100010110…
…10011111001111100
31021220121102120102122
430212023103321330
5210200000314322
610114040142112
7656113004411
oct144613237174
937817376378
1013525401212
115810811134
122755767938
1313771ab7ab
14924454108
15542636442
hex3262d3e7c

13525401212 has 24 divisors (see below), whose sum is σ = 25117646400. Its totient is φ = 6350704640.

The previous prime is 13525401193. The next prime is 13525401217. The reversal of 13525401212 is 21210452531.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13525401217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 190964 + ... + 252027.

It is an arithmetic number, because the mean of its divisors is an integer number (1046568600).

Almost surely, 213525401212 is an apocalyptic number.

It is an amenable number.

13525401212 is a deficient number, since it is larger than the sum of its proper divisors (11592245188).

13525401212 is a wasteful number, since it uses less digits than its factorization.

13525401212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 443461 (or 443459 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 26.

Adding to 13525401212 its reverse (21210452531), we get a palindrome (34735853743).

The spelling of 13525401212 in words is "thirteen billion, five hundred twenty-five million, four hundred one thousand, two hundred twelve".

Divisors: 1 2 4 17 34 68 449 898 1796 7633 15266 30532 442991 885982 1771964 7530847 15061694 30123388 198902959 397805918 795611836 3381350303 6762700606 13525401212