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55112164 = 2217810473
BaseRepresentation
bin1101001000111…
…1000111100100
310211200222200021
43102033013210
5103102042124
65245124524
71236305602
oct322170744
9124628607
1055112164
1129122648
1216559744
13b558263
147468872
154c897e4
hex348f1e4

55112164 has 12 divisors (see below), whose sum is σ = 102119724. Its totient is φ = 25935104.

The previous prime is 55112149. The next prime is 55112191. The reversal of 55112164 is 46121155.

It is a happy number.

55112164 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 32148900 + 22963264 = 5670^2 + 4792^2 .

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 405169 + ... + 405304.

It is an arithmetic number, because the mean of its divisors is an integer number (8509977).

Almost surely, 255112164 is an apocalyptic number.

It is an amenable number.

55112164 is a deficient number, since it is larger than the sum of its proper divisors (47007560).

55112164 is a wasteful number, since it uses less digits than its factorization.

55112164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 810494 (or 810492 counting only the distinct ones).

The product of its digits is 1200, while the sum is 25.

The square root of 55112164 is about 7423.7567309281. The cubic root of 55112164 is about 380.5535883331.

The spelling of 55112164 in words is "fifty-five million, one hundred twelve thousand, one hundred sixty-four".

Divisors: 1 2 4 17 34 68 810473 1620946 3241892 13778041 27556082 55112164