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131230314404440 = 2354815316813181
BaseRepresentation
bin11101110101101001110000…
…010001100001101001011000
3122012122111101020121200221021
4131311221300101201221120
5114200034140441420230
61143034212453252224
736433035345455416
oct3565516021415130
9565574336550837
10131230314404440
11388a5511350029
1212875392934074
13582bc724072c4
14245981c7b42b6
1510289057b4c7a
hex775a70461a58

131230314404440 has 32 divisors (see below), whose sum is σ = 295268863934160. Its totient is φ = 52492009046400.

The previous prime is 131230314404417. The next prime is 131230314404489. The reversal of 131230314404440 is 44404413032131.

It is a junction number, because it is equal to n+sod(n) for n = 131230314404396 and 131230314404405.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15854650 + ... + 22667830.

Almost surely, 2131230314404440 is an apocalyptic number.

131230314404440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131230314404440 is an abundant number, since it is smaller than the sum of its proper divisors (164038549529720).

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

131230314404440 is a wasteful number, since it uses less digits than its factorization.

131230314404440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7294723 (or 7294719 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 34.

Adding to 131230314404440 its reverse (44404413032131), we get a palindrome (175634727436571).

The spelling of 131230314404440 in words is "one hundred thirty-one trillion, two hundred thirty billion, three hundred fourteen million, four hundred four thousand, four hundred forty".

Divisors: 1 2 4 5 8 10 20 40 481531 963062 1926124 2407655 3852248 4815310 6813181 9630620 13626362 19261240 27252724 34065905 54505448 68131810 136263620 272527240 3280757860111 6561515720222 13123031440444 16403789300555 26246062880888 32807578601110 65615157202220 131230314404440