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55240305013 = 3110121298287
BaseRepresentation
bin110011011100100101…
…000010100101110101
312021120210101020200201
4303130211002211311
51401113004230023
641213235240501
73663622562635
oct633445024565
9167523336621
1055240305013
1121477791843
12a857a49131
13529462821a
1429606a66c5
151684967bad
hexcdc942975

55240305013 has 16 divisors (see below), whose sum is σ = 57620828160. Its totient is φ = 52897824000.

The previous prime is 55240305007. The next prime is 55240305017. The reversal of 55240305013 is 31050304255.

55240305013 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 55240305013 - 25 = 55240304981 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55240305017) 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, 6661756 + ... + 6670042.

It is an arithmetic number, because the mean of its divisors is an integer number (3601301760).

Almost surely, 255240305013 is an apocalyptic number.

It is an amenable number.

55240305013 is a deficient number, since it is larger than the sum of its proper divisors (2380523147).

55240305013 is a wasteful number, since it uses less digits than its factorization.

55240305013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10548.

The product of its (nonzero) digits is 9000, while the sum is 28.

Adding to 55240305013 its reverse (31050304255), we get a palindrome (86290609268).

The spelling of 55240305013 in words is "fifty-five billion, two hundred forty million, three hundred five thousand, thirteen".

Divisors: 1 31 101 2129 3131 8287 65999 215029 256897 836987 6665899 17643023 25946597 546933713 1781945323 55240305013