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228305054 = 2151755977
BaseRepresentation
bin11011001101110…
…10100010011110
3120220121002122202
431212322202132
5431421230204
634353211502
75441363255
oct1546724236
9526532582
10228305054
11107965a6a
1264560b92
13383b7963
142246d79c
151509ae1e
hexd9ba89e

228305054 has 8 divisors (see below), whose sum is σ = 344725968. Its totient is φ = 113396400.

The previous prime is 228305039. The next prime is 228305057. The reversal of 228305054 is 450503822.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228305057) 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, 377687 + ... + 378290.

It is an arithmetic number, because the mean of its divisors is an integer number (43090746).

Almost surely, 2228305054 is an apocalyptic number.

228305054 is a deficient number, since it is larger than the sum of its proper divisors (116420914).

228305054 is a wasteful number, since it uses less digits than its factorization.

228305054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 756130.

The product of its (nonzero) digits is 9600, while the sum is 29.

The square root of 228305054 is about 15109.7668413513. The cubic root of 228305054 is about 611.1838105932.

Adding to 228305054 its reverse (450503822), we get a palindrome (678808876).

The spelling of 228305054 in words is "two hundred twenty-eight million, three hundred five thousand, fifty-four".

Divisors: 1 2 151 302 755977 1511954 114152527 228305054