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228711834 = 232136191579
BaseRepresentation
bin11011010000111…
…01110110011010
3120221100202122200
431220131312122
5432022234314
634410031030
75445006231
oct1550356632
9527322580
10228711834
1110811364a
1264718476
13384cab60
1422537b18
151512b709
hexda1dd9a

228711834 has 48 divisors (see below), whose sum is σ = 534861600. Its totient is φ = 70214688.

The previous prime is 228711799. The next prime is 228711853. The reversal of 228711834 is 438117822.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 144057 + ... + 145635.

It is an arithmetic number, because the mean of its divisors is an integer number (11142950).

Almost surely, 2228711834 is an apocalyptic number.

228711834 is an abundant number, since it is smaller than the sum of its proper divisors (306149766).

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

228711834 is a wasteful number, since it uses less digits than its factorization.

228711834 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2219 (or 2216 counting only the distinct ones).

The product of its digits is 21504, while the sum is 36.

The square root of 228711834 is about 15123.2216805812. The cubic root of 228711834 is about 611.5465852158.

The spelling of 228711834 in words is "two hundred twenty-eight million, seven hundred eleven thousand, eight hundred thirty-four".

Divisors: 1 2 3 6 9 13 18 26 39 78 117 234 619 1238 1579 1857 3158 3714 4737 5571 8047 9474 11142 14211 16094 20527 24141 28422 41054 48282 61581 72423 123162 144846 184743 369486 977401 1954802 2932203 5864406 8796609 12706213 17593218 25412426 38118639 76237278 114355917 228711834