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228644284 = 221147110563
BaseRepresentation
bin11011010000011…
…01010110111100
3120221020022222211
431220031112330
5432013104114
634404350204
75444305261
oct1550152674
9527208884
10228644284
11108077920
12646a5364
13384a619b
142251b268
15151166c4
hexda0d5bc

228644284 has 24 divisors (see below), whose sum is σ = 445794048. Its totient is φ = 101717040.

The previous prime is 228644263. The next prime is 228644291. The reversal of 228644284 is 482446822.

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, 53214 + ... + 57349.

It is an arithmetic number, because the mean of its divisors is an integer number (18574752).

Almost surely, 2228644284 is an apocalyptic number.

It is an amenable number.

228644284 is a deficient number, since it is larger than the sum of its proper divisors (217149764).

228644284 is a wasteful number, since it uses less digits than its factorization.

228644284 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110625 (or 110623 counting only the distinct ones).

The product of its digits is 196608, while the sum is 40.

The square root of 228644284 is about 15120.9881952206. The cubic root of 228644284 is about 611.4863725620.

The spelling of 228644284 in words is "two hundred twenty-eight million, six hundred forty-four thousand, two hundred eighty-four".

Divisors: 1 2 4 11 22 44 47 94 188 517 1034 2068 110563 221126 442252 1216193 2432386 4864772 5196461 10392922 20785844 57161071 114322142 228644284