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55750172 = 2218177003
BaseRepresentation
bin1101010010101…
…0111000011100
310212220101212012
43110222320130
5103233001142
65310530352
71244603642
oct324527034
9125811765
1055750172
1129518a25
12168069b8
13b71c78a
147593192
154d63882
hex352ae1c

55750172 has 12 divisors (see below), whose sum is σ = 98103096. Its totient is φ = 27720720.

The previous prime is 55750169. The next prime is 55750207. The reversal of 55750172 is 27105755.

55750172 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

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, 37778 + ... + 39225.

It is an arithmetic number, because the mean of its divisors is an integer number (8175258).

Almost surely, 255750172 is an apocalyptic number.

It is an amenable number.

55750172 is a deficient number, since it is larger than the sum of its proper divisors (42352924).

55750172 is a wasteful number, since it uses less digits than its factorization.

55750172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77188 (or 77186 counting only the distinct ones).

The product of its (nonzero) digits is 12250, while the sum is 32.

The square root of 55750172 is about 7466.6037794971. The cubic root of 55750172 is about 382.0164553459.

The spelling of 55750172 in words is "fifty-five million, seven hundred fifty thousand, one hundred seventy-two".

Divisors: 1 2 4 181 362 724 77003 154006 308012 13937543 27875086 55750172