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131302323122012 = 22723820117536447
BaseRepresentation
bin11101110110101100110100…
…010100111110111101011100
3122012220101020122201120021222
4131312230310110332331130
5114202224124204401022
61143131242102112512
736441164653455500
oct3566546424767534
9565811218646258
10131302323122012
11389230033a3369
121288732a41b738
1358359a9a5bc23
14245d0d00b4300
15102a71c40b242
hex776b3453ef5c

131302323122012 has 36 divisors (see below), whose sum is σ = 267301027211904. Its totient is φ = 56270947924800.

The previous prime is 131302323121889. The next prime is 131302323122027. The reversal of 131302323122012 is 210221323203131.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1280828 + ... + 16255619.

It is an arithmetic number, because the mean of its divisors is an integer number (7425028533664).

Almost surely, 2131302323122012 is an apocalyptic number.

It is an amenable number.

131302323122012 is an abundant number, since it is smaller than the sum of its proper divisors (135998704089892).

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

131302323122012 is a wasteful number, since it uses less digits than its factorization.

131302323122012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17574666 (or 17574657 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 26.

Adding to 131302323122012 its reverse (210221323203131), we get a palindrome (341523646325143).

The spelling of 131302323122012 in words is "one hundred thirty-one trillion, three hundred two billion, three hundred twenty-three million, one hundred twenty-two thousand, twelve".

Divisors: 1 2 4 7 14 28 49 98 196 38201 76402 152804 267407 534814 1069628 1871849 3743698 7487396 17536447 35072894 70145788 122755129 245510258 491020516 859285903 1718571806 3437143612 669909811847 1339819623694 2679639247388 4689368682929 9378737365858 18757474731716 32825580780503 65651161561006 131302323122012