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54243144441513 = 32191319240493837
BaseRepresentation
bin11000101010101011101110…
…10110110001111010101001
321010001121001000000100220200
430111111313112301322221
524102204424434112023
6311210542340342413
714265636454164066
oct1425256726617251
9233047030010820
1054243144441513
111631342aa15395
1261008273a4a09
1324361501a84c1
14d5754ca7bc6d
15640ec6b4c743
hex3155775b1ea9

54243144441513 has 24 divisors (see below), whose sum is σ = 82537485201600. Its totient is φ = 34232854591584.

The previous prime is 54243144441491. The next prime is 54243144441517. The reversal of 54243144441513 is 31514444134245.

54243144441513 is a `hidden beast` number, since 5 + 4 + 2 + 43 + 14 + 44 + 41 + 513 = 666.

It is not a de Polignac number, because 54243144441513 - 221 = 54243142344361 is a prime.

It is not an unprimeable number, because it can be changed into a prime (54243144441517) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 120021370 + ... + 120472467.

It is an arithmetic number, because the mean of its divisors is an integer number (3439061883400).

Almost surely, 254243144441513 is an apocalyptic number.

It is an amenable number.

54243144441513 is a deficient number, since it is larger than the sum of its proper divisors (28294340760087).

54243144441513 is a wasteful number, since it uses less digits than its factorization.

54243144441513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 240495181 (or 240495178 counting only the distinct ones).

The product of its digits is 1843200, while the sum is 45.

Adding to 54243144441513 its reverse (31514444134245), we get a palindrome (85757588575758).

The spelling of 54243144441513 in words is "fifty-four trillion, two hundred forty-three billion, one hundred forty-four million, four hundred forty-one thousand, five hundred thirteen".

Divisors: 1 3 9 19 57 171 1319 3957 11871 25061 75183 225549 240493837 721481511 2164444533 4569382903 13708148709 41124446127 317211371003 951634113009 2854902339027 6027016049057 18081048147171 54243144441513