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224231 = 7103311
BaseRepresentation
bin110110101111100111
3102101120212
4312233213
524133411
64450035
71622510
oct665747
9371525
10224231
11143517
12a991b
137b0a7
145ba07
154668b
hex36be7

224231 has 8 divisors (see below), whose sum is σ = 259584. Its totient is φ = 189720.

The previous prime is 224221. The next prime is 224233. The reversal of 224231 is 132422.

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 224231 - 210 = 223207 is a prime.

It is a super-2 number, since 2×2242312 = 100559082722, which contains 22 as substring.

It is a Duffinian number.

It is a plaindrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (224233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 566 + ... + 876.

It is an arithmetic number, because the mean of its divisors is an integer number (32448).

2224231 is an apocalyptic number.

224231 is a deficient number, since it is larger than the sum of its proper divisors (35353).

224231 is a wasteful number, since it uses less digits than its factorization.

224231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 421.

The product of its digits is 96, while the sum is 14.

The square root of 224231 is about 473.5303580553. The cubic root of 224231 is about 60.7526488145.

Adding to 224231 its reverse (132422), we get a palindrome (356653).

Subtracting from 224231 its reverse (132422), we obtain a square (91809 = 3032).

The spelling of 224231 in words is "two hundred twenty-four thousand, two hundred thirty-one".

Divisors: 1 7 103 311 721 2177 32033 224231