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228144663 = 3230798233
BaseRepresentation
bin11011001100100…
…11011000010111
3120220021221122100
431212103120113
5431401112123
634345533143
75440124535
oct1546233027
9526257570
10228144663
1110786650a
12644a41b3
133835c956
142242b155
1515068643
hexd993617

228144663 has 12 divisors (see below), whose sum is σ = 329689360. Its totient is φ = 152028576.

The previous prime is 228144617. The next prime is 228144667. The reversal of 228144663 is 366441822.

It is not a de Polignac number, because 228144663 - 29 = 228144151 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228144667) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 23595 + ... + 31827.

Almost surely, 2228144663 is an apocalyptic number.

228144663 is a deficient number, since it is larger than the sum of its proper divisors (101544697).

228144663 is a wasteful number, since it uses less digits than its factorization.

228144663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11318 (or 11315 counting only the distinct ones).

The product of its digits is 55296, while the sum is 36.

The square root of 228144663 is about 15104.4583815508. The cubic root of 228144663 is about 611.0406522097.

The spelling of 228144663 in words is "two hundred twenty-eight million, one hundred forty-four thousand, six hundred sixty-three".

Divisors: 1 3 9 3079 8233 9237 24699 27711 74097 25349407 76048221 228144663