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13311131302 = 2719228721881
BaseRepresentation
bin11000110010110011…
…11011111010100110
31021100200020112101001
430121121323322212
5204230122200202
610040503423514
7650601514660
oct143131737246
937320215331
1013311131302
115710871a67
1226b5a54b9a
131341999271
14903bd9530
1552d90dd87
hex31967bea6

13311131302 has 32 divisors (see below), whose sum is σ = 24031687680. Its totient is φ = 5401909440.

The previous prime is 13311131263. The next prime is 13311131303. The reversal of 13311131302 is 20313111331.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a self number, because there is not a number n which added to its sum of digits gives 13311131302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13311131303) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 597402 + ... + 619282.

It is an arithmetic number, because the mean of its divisors is an integer number (750990240).

Almost surely, 213311131302 is an apocalyptic number.

13311131302 is a deficient number, since it is larger than the sum of its proper divisors (10720556378).

13311131302 is a wasteful number, since it uses less digits than its factorization.

13311131302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24196.

The product of its (nonzero) digits is 162, while the sum is 19.

Adding to 13311131302 its reverse (20313111331), we get a palindrome (33624242633).

The spelling of 13311131302 in words is "thirteen billion, three hundred eleven million, one hundred thirty-one thousand, three hundred two".

Divisors: 1 2 7 14 19 38 133 266 2287 4574 16009 21881 32018 43453 43762 86906 153167 304171 306334 415739 608342 831478 2910173 5820346 50041847 100083694 350292929 700585858 950795093 1901590186 6655565651 13311131302