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12831113326 = 2197110147087
BaseRepresentation
bin10111111001100101…
…10100000001101110
31020010020000002111111
423330302310001232
5202234231111301
65521115142234
7632652443443
oct137462640156
936106002444
1012831113326
115494913399
1225a114497a
1312963bc365
1489a1659ca
155016e1551
hex2fccb406e

12831113326 has 32 divisors (see below), whose sum is σ = 20748856320. Its totient is φ = 5932836000.

The previous prime is 12831113297. The next prime is 12831113353. The reversal of 12831113326 is 62331113821.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 248955 + ... + 296041.

It is an arithmetic number, because the mean of its divisors is an integer number (648401760).

Almost surely, 212831113326 is an apocalyptic number.

12831113326 is a deficient number, since it is larger than the sum of its proper divisors (7917742994).

12831113326 is a wasteful number, since it uses less digits than its factorization.

12831113326 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47280.

The product of its digits is 5184, while the sum is 31.

The spelling of 12831113326 in words is "twelve billion, eight hundred thirty-one million, one hundred thirteen thousand, three hundred twenty-six".

Divisors: 1 2 19 38 71 101 142 202 1349 1919 2698 3838 7171 14342 47087 94174 136249 272498 894653 1789306 3343177 4755787 6686354 9511574 63520363 90359953 127040726 180719906 337660877 675321754 6415556663 12831113326