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131444323713 = 3271205703167
BaseRepresentation
bin111101001101010110…
…0010011010110000001
3110120021120200111021200
41322122230103112001
54123144221324323
6140215032011413
712332212213443
oct1723254232601
9416246614250
10131444323713
115082199199a
1221584530b69
13c51a1a1b51
14650d238493
153644a61443
hex1e9ab13581

131444323713 has 12 divisors (see below), whose sum is σ = 192538165248. Its totient is φ = 86395329720.

The previous prime is 131444323711. The next prime is 131444323729. The reversal of 131444323713 is 317323444131.

131444323713 is a `hidden beast` number, since 1 + 314 + 4 + 4 + 323 + 7 + 13 = 666.

It is not a de Polignac number, because 131444323713 - 21 = 131444323711 is a prime.

It is a super-2 number, since 2×1314443237132 (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (131444323711) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 102850945 + ... + 102852222.

It is an arithmetic number, because the mean of its divisors is an integer number (16044847104).

Almost surely, 2131444323713 is an apocalyptic number.

It is an amenable number.

131444323713 is a deficient number, since it is larger than the sum of its proper divisors (61093841535).

131444323713 is a wasteful number, since it uses less digits than its factorization.

131444323713 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205703244 (or 205703241 counting only the distinct ones).

The product of its digits is 72576, while the sum is 36.

Adding to 131444323713 its reverse (317323444131), we get a palindrome (448767767844).

The spelling of 131444323713 in words is "one hundred thirty-one billion, four hundred forty-four million, three hundred twenty-three thousand, seven hundred thirteen".

Divisors: 1 3 9 71 213 639 205703167 617109501 1851328503 14604924857 43814774571 131444323713