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228144884 = 221113139581
BaseRepresentation
bin11011001100100…
…11011011110100
3120220021221221112
431212103123310
5431401114014
634345534152
75440125302
oct1546233364
9526257845
10228144884
111078666a0
12644a4358
133835ca96
142242b272
151506873e
hexd9936f4

228144884 has 24 divisors (see below), whose sum is σ = 438885216. Its totient is φ = 102908000.

The previous prime is 228144871. The next prime is 228144893. The reversal of 228144884 is 488441822.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14027 + ... + 25554.

It is an arithmetic number, because the mean of its divisors is an integer number (18286884).

Almost surely, 2228144884 is an apocalyptic number.

It is an amenable number.

228144884 is a deficient number, since it is larger than the sum of its proper divisors (210740332).

228144884 is a wasteful number, since it uses less digits than its factorization.

228144884 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39727 (or 39725 counting only the distinct ones).

The product of its digits is 131072, while the sum is 41.

The square root of 228144884 is about 15104.4656972698. The cubic root of 228144884 is about 611.0408495113.

The spelling of 228144884 in words is "two hundred twenty-eight million, one hundred forty-four thousand, eight hundred eighty-four".

Divisors: 1 2 4 11 22 44 131 262 524 1441 2882 5764 39581 79162 158324 435391 870782 1741564 5185111 10370222 20740444 57036221 114072442 228144884