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55454805 = 3257176047
BaseRepresentation
bin1101001110001…
…0110001010101
310212100101200200
43103202301111
5103144023210
65300331113
71242233550
oct323426125
9125311620
1055454805
112933701a
12166a3a99
13b6481c3
147517697
154d060c0
hex34e2c55

55454805 has 24 divisors (see below), whose sum is σ = 109853952. Its totient is φ = 25350624.

The previous prime is 55454779. The next prime is 55454807. The reversal of 55454805 is 50845455.

55454805 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 55454805 - 26 = 55454741 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 55454805.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55454807) 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 23 ways as a sum of consecutive naturals, for example, 87709 + ... + 88338.

It is an arithmetic number, because the mean of its divisors is an integer number (4577248).

Almost surely, 255454805 is an apocalyptic number.

It is an amenable number.

55454805 is a deficient number, since it is larger than the sum of its proper divisors (54399147).

55454805 is a wasteful number, since it uses less digits than its factorization.

55454805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 176065 (or 176062 counting only the distinct ones).

The product of its (nonzero) digits is 80000, while the sum is 36.

The square root of 55454805 is about 7446.7983053122. The cubic root of 55454805 is about 381.3406134166.

The spelling of 55454805 in words is "fifty-five million, four hundred fifty-four thousand, eight hundred five".

Divisors: 1 3 5 7 9 15 21 35 45 63 105 315 176047 528141 880235 1232329 1584423 2640705 3696987 6161645 7922115 11090961 18484935 55454805