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131311343004 = 223192309249427
BaseRepresentation
bin111101001001011000…
…1000001010110011100
3110112221022110101001020
41322102301001112130
54122411200434004
6140153521444140
712326005666542
oct1722261012634
9415838411036
10131311343004
1150763914586
1221547aa0650
13c4c878173a
1464d96ddd92
1536380448d9
hex1e92c4159c

131311343004 has 48 divisors (see below), whose sum is σ = 322660060800. Its totient is φ = 41448614976.

The previous prime is 131311342961. The next prime is 131311343027. The reversal of 131311343004 is 400343113131.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 401739 + ... + 651165.

It is an arithmetic number, because the mean of its divisors is an integer number (6722084600).

Almost surely, 2131311343004 is an apocalyptic number.

It is an amenable number.

131311343004 is an abundant number, since it is smaller than the sum of its proper divisors (191348717796).

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

131311343004 is a wasteful number, since it uses less digits than its factorization.

131311343004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 251762 (or 251760 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 24.

Adding to 131311343004 its reverse (400343113131), we get a palindrome (531654456135).

The spelling of 131311343004 in words is "one hundred thirty-one billion, three hundred eleven million, three hundred forty-three thousand, four".

Divisors: 1 2 3 4 6 12 19 38 57 76 114 228 2309 4618 6927 9236 13854 27708 43871 87742 131613 175484 249427 263226 498854 526452 748281 997708 1496562 2993124 4739113 9478226 14217339 18956452 28434678 56869356 575926943 1151853886 1727780829 2303707772 3455561658 6911123316 10942611917 21885223834 32827835751 43770447668 65655671502 131311343004