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234287223 = 3232147629
BaseRepresentation
bin11011111011011…
…11000001110111
3121022212000122120
431331233001313
5434434142343
635125331023
75543260062
oct1575570167
9538760576
10234287223
11110281505
1266566a73
13397007c1
14231898d9
151587d683
hexdf6f077

234287223 has 12 divisors (see below), whose sum is σ = 326557560. Its totient is φ = 149399536.

The previous prime is 234287213. The next prime is 234287231. The reversal of 234287223 is 322782432.

It is not a de Polignac number, because 234287223 - 25 = 234287191 is a prime.

It is a super-2 number, since 2×2342872232 = 109781005722103458, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (234287203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 72228 + ... + 75401.

It is an arithmetic number, because the mean of its divisors is an integer number (27213130).

Almost surely, 2234287223 is an apocalyptic number.

234287223 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

234287223 is a deficient number, since it is larger than the sum of its proper divisors (92270337).

234287223 is a wasteful number, since it uses less digits than its factorization.

234287223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147678 (or 147655 counting only the distinct ones).

The product of its digits is 32256, while the sum is 33.

The square root of 234287223 is about 15306.4438391156. The cubic root of 234287223 is about 616.4760394795.

The spelling of 234287223 in words is "two hundred thirty-four million, two hundred eighty-seven thousand, two hundred twenty-three".

Divisors: 1 3 23 69 529 1587 147629 442887 3395467 10186401 78095741 234287223