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55048558 = 2131210109
BaseRepresentation
bin1101000111111…
…1100101101110
310211120202102111
43101333211232
5103043023213
65243514234
71235622265
oct321774556
9124522374
1055048558
1129089884
121652897a
13b535316
14744d5dc
154c75a3d
hex347f96e

55048558 has 8 divisors (see below), whose sum is σ = 83203560. Its totient is φ = 27314040.

The previous prime is 55048549. The next prime is 55048573. The reversal of 55048558 is 85584055.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 55048558.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 104793 + ... + 105316.

It is an arithmetic number, because the mean of its divisors is an integer number (10400445).

Almost surely, 255048558 is an apocalyptic number.

55048558 is a deficient number, since it is larger than the sum of its proper divisors (28155002).

55048558 is a wasteful number, since it uses less digits than its factorization.

55048558 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210242.

The product of its (nonzero) digits is 160000, while the sum is 40.

The square root of 55048558 is about 7419.4715445239. The cubic root of 55048558 is about 380.4071305897.

The spelling of 55048558 in words is "fifty-five million, forty-eight thousand, five hundred fifty-eight".

Divisors: 1 2 131 262 210109 420218 27524279 55048558