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55108444 = 2289154799
BaseRepresentation
bin1101001000111…
…0001101011100
310211200210120111
43102032031130
5103101432234
65245055404
71236262006
oct322161534
9124623514
1055108444
112911a876
1216557564
13b556661
147467376
154c88664
hex348e35c

55108444 has 12 divisors (see below), whose sum is σ = 97524000. Its totient is φ = 27244448.

The previous prime is 55108411. The next prime is 55108447. The reversal of 55108444 is 44480155.

55108444 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×551084442 = 6073881200202272, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55108447) 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 3 ways as a sum of consecutive naturals, for example, 77044 + ... + 77755.

It is an arithmetic number, because the mean of its divisors is an integer number (8127000).

Almost surely, 255108444 is an apocalyptic number.

It is an amenable number.

55108444 is a deficient number, since it is larger than the sum of its proper divisors (42415556).

55108444 is a wasteful number, since it uses less digits than its factorization.

55108444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154892 (or 154890 counting only the distinct ones).

The product of its (nonzero) digits is 12800, while the sum is 31.

The square root of 55108444 is about 7423.5061796970. The cubic root of 55108444 is about 380.5450258483.

Adding to 55108444 its reverse (44480155), we get a palindrome (99588599).

The spelling of 55108444 in words is "fifty-five million, one hundred eight thousand, four hundred forty-four".

Divisors: 1 2 4 89 178 356 154799 309598 619196 13777111 27554222 55108444