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228144284 = 22173355063
BaseRepresentation
bin11011001100100…
…11010010011100
3120220021221010022
431212103102130
5431401104114
634345531312
75440123454
oct1546232234
9526257108
10228144284
111078661a5
12644a3b38
133835c724
142242ad64
151506848e
hexd99349c

228144284 has 12 divisors (see below), whose sum is σ = 422738064. Its totient is φ = 107361984.

The previous prime is 228144281. The next prime is 228144289. The reversal of 228144284 is 482441822.

228144284 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (35) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228144281) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1677464 + ... + 1677599.

It is an arithmetic number, because the mean of its divisors is an integer number (35228172).

Almost surely, 2228144284 is an apocalyptic number.

It is an amenable number.

228144284 is a deficient number, since it is larger than the sum of its proper divisors (194593780).

228144284 is a wasteful number, since it uses less digits than its factorization.

228144284 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3355084 (or 3355082 counting only the distinct ones).

The product of its digits is 32768, while the sum is 35.

The square root of 228144284 is about 15104.4458355810. The cubic root of 228144284 is about 611.0403138505.

The spelling of 228144284 in words is "two hundred twenty-eight million, one hundred forty-four thousand, two hundred eighty-four".

Divisors: 1 2 4 17 34 68 3355063 6710126 13420252 57036071 114072142 228144284