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228144832 = 2612728069
BaseRepresentation
bin11011001100100…
…11011011000000
3120220021221212121
431212103123000
5431401113312
634345534024
75440125166
oct1546233300
9526257777
10228144832
11107866653
12644a4314
133835ca56
142242b236
1515068707
hexd9936c0

228144832 has 28 divisors (see below), whose sum is σ = 456305920. Its totient is φ = 113170176.

The previous prime is 228144823. The next prime is 228144857. The reversal of 228144832 is 238441822.

228144832 is an admirable number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 5907 + ... + 22162.

It is an arithmetic number, because the mean of its divisors is an integer number (16296640).

Almost surely, 2228144832 is an apocalyptic number.

It is an amenable number.

228144832 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

228144832 is a wasteful number, since it uses less digits than its factorization.

228144832 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28208 (or 28198 counting only the distinct ones).

The product of its digits is 24576, while the sum is 34.

The square root of 228144832 is about 15104.4639759245. The cubic root of 228144832 is about 611.0408030874.

The spelling of 228144832 in words is "two hundred twenty-eight million, one hundred forty-four thousand, eight hundred thirty-two".

Divisors: 1 2 4 8 16 32 64 127 254 508 1016 2032 4064 8128 28069 56138 112276 224552 449104 898208 1796416 3564763 7129526 14259052 28518104 57036208 114072416 228144832