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1311004233426 = 232367853140009
BaseRepresentation
bin10011000100111101111…
…100010000111011010010
311122022221010202102122010
4103010331330100323102
5132434414040432201
62442133402323350
7163500623055516
oct23047574207322
94568833672563
101311004233426
11465aa2791688
121920b87b9556
139681cb74974
144764ac3c146
152418004dbd6
hex1313df10ed2

1311004233426 has 32 divisors (see below), whose sum is σ = 2736068699520. Its totient is φ = 417992203904.

The previous prime is 1311004233401. The next prime is 1311004233437. The reversal of 1311004233426 is 6243324001131.

It is a junction number, because it is equal to n+sod(n) for n = 1311004233393 and 1311004233402.

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, 9293710 + ... + 9433718.

It is an arithmetic number, because the mean of its divisors is an integer number (85502146860).

Almost surely, 21311004233426 is an apocalyptic number.

1311004233426 is an abundant number, since it is smaller than the sum of its proper divisors (1425064466094).

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

1311004233426 is a wasteful number, since it uses less digits than its factorization.

1311004233426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 207890.

The product of its (nonzero) digits is 10368, while the sum is 30.

Adding to 1311004233426 its reverse (6243324001131), we get a palindrome (7554328234557).

The spelling of 1311004233426 in words is "one trillion, three hundred eleven billion, four million, two hundred thirty-three thousand, four hundred twenty-six".

Divisors: 1 2 3 6 23 46 69 138 67853 135706 140009 203559 280018 407118 420027 840054 1560619 3121238 3220207 4681857 6440414 9363714 9660621 19321242 9500030677 19000061354 28500092031 57000184062 218500705571 437001411142 655502116713 1311004233426