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229823 = 11171229
BaseRepresentation
bin111000000110111111
3102200020222
4320012333
524323243
64531555
71645016
oct700677
9380228
10229823
11147740
12b0bbb
13807b9
145da7d
1548168
hex381bf

229823 has 8 divisors (see below), whose sum is σ = 265680. Its totient is φ = 196480.

The previous prime is 229819. The next prime is 229837. The reversal of 229823 is 328922.

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 229823 - 22 = 229819 is a prime.

It is a super-2 number, since 2×2298232 = 105637222658, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 229792 and 229801.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (229813) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 428 + ... + 801.

It is an arithmetic number, because the mean of its divisors is an integer number (33210).

2229823 is an apocalyptic number.

229823 is a deficient number, since it is larger than the sum of its proper divisors (35857).

229823 is a wasteful number, since it uses less digits than its factorization.

229823 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1257.

The product of its digits is 1728, while the sum is 26.

The square root of 229823 is about 479.3985815582. The cubic root of 229823 is about 61.2535358225.

Subtracting 229823 from its reverse (328922), we obtain a palindrome (99099).

The spelling of 229823 in words is "two hundred twenty-nine thousand, eight hundred twenty-three".

Divisors: 1 11 17 187 1229 13519 20893 229823