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55111364 = 22711178933
BaseRepresentation
bin1101001000111…
…0111011000100
310211200221120122
43102032323010
5103102030424
65245121112
71236303350
oct322167304
9124627518
1055111364
1129121a90
1216559198
13b557a99
147468460
154c8945e
hex348eec4

55111364 has 24 divisors (see below), whose sum is σ = 120243648. Its totient is φ = 21471840.

The previous prime is 55111363. The next prime is 55111379. The reversal of 55111364 is 46311155.

55111364 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (55111363) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 89159 + ... + 89774.

It is an arithmetic number, because the mean of its divisors is an integer number (5010152).

Almost surely, 255111364 is an apocalyptic number.

It is an amenable number.

55111364 is an abundant number, since it is smaller than the sum of its proper divisors (65132284).

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

55111364 is a wasteful number, since it uses less digits than its factorization.

55111364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178955 (or 178953 counting only the distinct ones).

The product of its digits is 1800, while the sum is 26.

The square root of 55111364 is about 7423.7028496566. The cubic root of 55111364 is about 380.5517469710.

The spelling of 55111364 in words is "fifty-five million, one hundred eleven thousand, three hundred sixty-four".

Divisors: 1 2 4 7 11 14 22 28 44 77 154 308 178933 357866 715732 1252531 1968263 2505062 3936526 5010124 7873052 13777841 27555682 55111364