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228144862 = 211174712979
BaseRepresentation
bin11011001100100…
…11011011011110
3120220021221220201
431212103123132
5431401113422
634345534114
75440125241
oct1546233336
9526257821
10228144862
11107866680
12644a433a
133835ca7a
142242b258
1515068727
hexd9936de

228144862 has 32 divisors (see below), whose sum is σ = 403729920. Its totient is φ = 95518080.

The previous prime is 228144857. The next prime is 228144871. The reversal of 228144862 is 268441822.

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, 11089 + ... + 24067.

It is an arithmetic number, because the mean of its divisors is an integer number (12616560).

Almost surely, 2228144862 is an apocalyptic number.

228144862 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

228144862 is a deficient number, since it is larger than the sum of its proper divisors (175585058).

228144862 is a wasteful number, since it uses less digits than its factorization.

228144862 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13056.

The product of its digits is 49152, while the sum is 37.

The square root of 228144862 is about 15104.4649690083. The cubic root of 228144862 is about 611.0408298704.

The spelling of 228144862 in words is "two hundred twenty-eight million, one hundred forty-four thousand, eight hundred sixty-two".

Divisors: 1 2 11 17 22 34 47 94 187 374 517 799 1034 1598 8789 12979 17578 25958 142769 220643 285538 441286 610013 1220026 2427073 4854146 6710143 10370221 13420286 20740442 114072431 228144862