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13124243122428 = 2231093686926869
BaseRepresentation
bin1011111011111011100111…
…0110010110100011111100
31201110122222001212002111110
42332332321312112203330
53210011422214404203
643525105525522020
72523123656616204
oct276767166264374
951418861762443
1013124243122428
1141aaa62104569
12157b696573310
137427c2c692c9
14335306acb404
1517b5d1dd8d03
hexbefb9d968fc

13124243122428 has 12 divisors (see below), whose sum is σ = 30623233952360. Its totient is φ = 4374747707472.

The previous prime is 13124243122427. The next prime is 13124243122583. The reversal of 13124243122428 is 82422134242131.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13124243122427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 546843463423 + ... + 546843463446.

Almost surely, 213124243122428 is an apocalyptic number.

It is an amenable number.

13124243122428 is an abundant number, since it is smaller than the sum of its proper divisors (17498990829932).

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

13124243122428 is a wasteful number, since it uses less digits than its factorization.

13124243122428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1093686926876 (or 1093686926874 counting only the distinct ones).

The product of its digits is 147456, while the sum is 39.

Adding to 13124243122428 its reverse (82422134242131), we get a palindrome (95546377364559).

The spelling of 13124243122428 in words is "thirteen trillion, one hundred twenty-four billion, two hundred forty-three million, one hundred twenty-two thousand, four hundred twenty-eight".

Divisors: 1 2 3 4 6 12 1093686926869 2187373853738 3281060780607 4374747707476 6562121561214 13124243122428