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228259 = 1729463
BaseRepresentation
bin110111101110100011
3102121010001
4313232203
524301014
64520431
71640323
oct675643
9377101
10228259
11146549
12b0117
137cb85
145d283
1547974
hex37ba3

228259 has 8 divisors (see below), whose sum is σ = 250560. Its totient is φ = 206976.

The previous prime is 228257. The next prime is 228281. The reversal of 228259 is 952822.

228259 is nontrivially palindromic in base 15.

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

It is a cyclic number.

It is not a de Polignac number, because 228259 - 21 = 228257 is a prime.

It is a super-3 number, since 3×2282593 = 35678368406333937, which contains 333 as substring.

228259 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228251) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 262 + ... + 724.

It is an arithmetic number, because the mean of its divisors is an integer number (31320).

2228259 is an apocalyptic number.

228259 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

228259 is a deficient number, since it is larger than the sum of its proper divisors (22301).

228259 is a wasteful number, since it uses less digits than its factorization.

228259 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 509.

The product of its digits is 2880, while the sum is 28.

The square root of 228259 is about 477.7645863812. The cubic root of 228259 is about 61.1142711558.

It can be divided in two parts, 22 and 8259, that added together give a square (8281 = 912).

The spelling of 228259 in words is "two hundred twenty-eight thousand, two hundred fifty-nine".

Divisors: 1 17 29 463 493 7871 13427 228259