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228613055 = 5116168141
BaseRepresentation
bin11011010000001…
…01101110111111
3120221011202011012
431220011232333
5432011104210
634403545435
75444115236
oct1550055677
9527152135
10228613055
11108056410
126468b27b
1338494bc8
142250db1d
151510c305
hexda05bbf

228613055 has 16 divisors (see below), whose sum is σ = 304185888. Its totient is φ = 163536000.

The previous prime is 228613027. The next prime is 228613087. The reversal of 228613055 is 550316822.

228613055 = 27462 + 27472 + ... + 27752.

It is not a de Polignac number, because 228613055 - 210 = 228612031 is a prime.

It is a Duffinian number.

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 15 ways as a sum of consecutive naturals, for example, 30716 + ... + 37425.

It is an arithmetic number, because the mean of its divisors is an integer number (19011618).

Almost surely, 2228613055 is an apocalyptic number.

228613055 is a deficient number, since it is larger than the sum of its proper divisors (75572833).

228613055 is a wasteful number, since it uses less digits than its factorization.

228613055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68218.

The product of its (nonzero) digits is 14400, while the sum is 32.

The square root of 228613055 is about 15119.9555224214. The cubic root of 228613055 is about 611.4585316774.

Adding to 228613055 its reverse (550316822), we get a palindrome (778929877).

The spelling of 228613055 in words is "two hundred twenty-eight million, six hundred thirteen thousand, fifty-five".

Divisors: 1 5 11 55 61 305 671 3355 68141 340705 749551 3747755 4156601 20783005 45722611 228613055