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55064012043 = 31931274111369
BaseRepresentation
bin110011010010000100…
…100010010100001011
312021010111122122012110
4303102010202110023
51400232341341133
641143540513403
73656352244155
oct632204422413
9167114578173
1055064012043
1121397221277
12a8089ab863
135266c51761
1429450d5ad5
151674242c63
hexcd212250b

55064012043 has 32 divisors (see below), whose sum is σ = 79811942400. Its totient is φ = 33640185600.

The previous prime is 55064012039. The next prime is 55064012071. The reversal of 55064012043 is 34021046055.

It is not a de Polignac number, because 55064012043 - 22 = 55064012039 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 55064012043.

It is not an unprimeable number, because it can be changed into a prime (55064012023) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4837663 + ... + 4849031.

It is an arithmetic number, because the mean of its divisors is an integer number (2494123200).

Almost surely, 255064012043 is an apocalyptic number.

55064012043 is a deficient number, since it is larger than the sum of its proper divisors (24747930357).

55064012043 is a wasteful number, since it uses less digits than its factorization.

55064012043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14163.

The product of its (nonzero) digits is 14400, while the sum is 30.

Adding to 55064012043 its reverse (34021046055), we get a palindrome (89085058098).

The spelling of 55064012043 in words is "fifty-five billion, sixty-four million, twelve thousand, forty-three".

Divisors: 1 3 19 31 57 93 589 1767 2741 8223 11369 34107 52079 84971 156237 216011 254913 352439 648033 1057317 1614449 4843347 6696341 20089023 31162429 93487287 592086151 966035299 1776258453 2898105897 18354670681 55064012043