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229225 = 5253173
BaseRepresentation
bin110111111101101001
3102122102211
4313331221
524313400
64525121
71643203
oct677551
9378384
10229225
11147247
12b07a1
1380449
145d773
1547dba
hex37f69

229225 has 12 divisors (see below), whose sum is σ = 291276. Its totient is φ = 178880.

The previous prime is 229223. The next prime is 229237. The reversal of 229225 is 522922.

It can be written as a sum of positive squares in 6 ways, for example, as 10201 + 219024 = 101^2 + 468^2 .

It is not a de Polignac number, because 229225 - 21 = 229223 is a prime.

It is a Duffinian number.

229225 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 229196 and 229205.

It is not an unprimeable number, because it can be changed into a prime (229223) 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 11 ways as a sum of consecutive naturals, for example, 1239 + ... + 1411.

It is an arithmetic number, because the mean of its divisors is an integer number (24273).

2229225 is an apocalyptic number.

229225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

229225 is a deficient number, since it is larger than the sum of its proper divisors (62051).

229225 is a wasteful number, since it uses less digits than its factorization.

229225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 236 (or 231 counting only the distinct ones).

The product of its digits is 720, while the sum is 22.

The square root of 229225 is about 478.7744771811. The cubic root of 229225 is about 61.2003623941.

It can be divided in two parts, 229 and 225, that added together give a palindrome (454).

The spelling of 229225 in words is "two hundred twenty-nine thousand, two hundred twenty-five".

Divisors: 1 5 25 53 173 265 865 1325 4325 9169 45845 229225