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13023131312212 = 227465111832579
BaseRepresentation
bin1011110110000010111100…
…0111011010000001010100
31201002222222102010221100121
42331200233013122001110
53201332333103442322
643410424404521324
72512614222455410
oct275405707320124
951088872127317
1013023131312212
114171096127a4a
121563b783b0244
137360cb0023c8
14330474135d40
15178b65283ec7
hexbd82f1da054

13023131312212 has 12 divisors (see below), whose sum is σ = 26046262624480. Its totient is φ = 5581341990936.

The previous prime is 13023131312203. The next prime is 13023131312293. The reversal of 13023131312212 is 21221313132031.

13023131312212 is an admirable number.

It is a congruent number.

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, 232555916262 + ... + 232555916317.

Almost surely, 213023131312212 is an apocalyptic number.

It is an amenable number.

13023131312212 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13023131312212 is a wasteful number, since it uses less digits than its factorization.

13023131312212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 465111832590 (or 465111832588 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 25.

Adding to 13023131312212 its reverse (21221313132031), we get a palindrome (34244444444243).

The spelling of 13023131312212 in words is "thirteen trillion, twenty-three billion, one hundred thirty-one million, three hundred twelve thousand, two hundred twelve".

Divisors: 1 2 4 7 14 28 465111832579 930223665158 1860447330316 3255782828053 6511565656106 13023131312212