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55207544 = 2372342863
BaseRepresentation
bin1101001010011…
…0011001111000
310211212211111212
43102212121320
5103113120134
65251142252
71240153640
oct322463170
9124784455
1055207544
1129188277
12165a4988
13b58c7b2
147491520
154ca7bce
hex34a6678

55207544 has 32 divisors (see below), whose sum is σ = 123448320. Its totient is φ = 22631136.

The previous prime is 55207543. The next prime is 55207577. The reversal of 55207544 is 44570255.

55207544 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

55207544 is a modest number, since divided by 7544 gives 552 as remainder.

It is a self number, because there is not a number n which added to its sum of digits gives 55207544.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55207543) 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, 20144 + ... + 22719.

It is an arithmetic number, because the mean of its divisors is an integer number (3857760).

Almost surely, 255207544 is an apocalyptic number.

It is an amenable number.

55207544 is an abundant number, since it is smaller than the sum of its proper divisors (68240776).

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

55207544 is a wasteful number, since it uses less digits than its factorization.

55207544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42899 (or 42895 counting only the distinct ones).

The product of its (nonzero) digits is 28000, while the sum is 32.

The square root of 55207544 is about 7430.1779251913. The cubic root of 55207544 is about 380.7729971378.

Adding to 55207544 its reverse (44570255), we get a palindrome (99777799).

The spelling of 55207544 in words is "fifty-five million, two hundred seven thousand, five hundred forty-four".

Divisors: 1 2 4 7 8 14 23 28 46 56 92 161 184 322 644 1288 42863 85726 171452 300041 342904 600082 985849 1200164 1971698 2400328 3943396 6900943 7886792 13801886 27603772 55207544