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131400505304 = 23234738893907
BaseRepresentation
bin111101001100000010…
…1001001011111011000
3110120011112020021201122
41322120011021133120
54123102012132204
6140210424504412
712331140603125
oct1723005113730
9416145207648
10131400505304
11507aa183532
122157191b108
13c51109c2b3
1465074ad74c
153640ca80be
hex1e981497d8

131400505304 has 64 divisors (see below), whose sum is σ = 262692633600. Its totient is φ = 61475065344.

The previous prime is 131400505253. The next prime is 131400505309. The reversal of 131400505304 is 403505004131.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131400505309) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33630119 + ... + 33634025.

It is an arithmetic number, because the mean of its divisors is an integer number (4104572400).

Almost surely, 2131400505304 is an apocalyptic number.

It is an amenable number.

131400505304 is a deficient number, since it is larger than the sum of its proper divisors (131292128296).

131400505304 is a wasteful number, since it uses less digits than its factorization.

131400505304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7872 (or 7868 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 26.

Adding to 131400505304 its reverse (403505004131), we get a palindrome (534905509435).

The spelling of 131400505304 in words is "one hundred thirty-one billion, four hundred million, five hundred five thousand, three hundred four".

Divisors: 1 2 4 8 23 46 47 92 94 184 188 376 1081 2162 3889 3907 4324 7778 7814 8648 15556 15628 31112 31256 89447 89861 178894 179722 182783 183629 357788 359444 365566 367258 715576 718888 731132 734516 1462264 1469032 4204009 4223467 8408018 8446934 15194323 16816036 16893868 30388646 33632072 33787736 60777292 121554584 349469429 698938858 714133181 1397877716 1428266362 2795755432 2856532724 5713065448 16425063163 32850126326 65700252652 131400505304