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229957 = 7213192
BaseRepresentation
bin111000001001000101
3102200102221
4320021011
524324312
64532341
71645300
oct701105
9380387
10229957
11147852
12b10b1
1380890
145db37
1548207
hex38245

229957 has 18 divisors (see below), whose sum is σ = 304038. Its totient is φ = 172368.

The previous prime is 229949. The next prime is 229961. The reversal of 229957 is 759922.

It can be written as a sum of positive squares in only one way, i.e., 159201 + 70756 = 399^2 + 266^2 .

It is not a de Polignac number, because 229957 - 23 = 229949 is a prime.

229957 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (229937) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 12094 + ... + 12112.

It is an arithmetic number, because the mean of its divisors is an integer number (16891).

2229957 is an apocalyptic number.

It is an amenable number.

229957 is a deficient number, since it is larger than the sum of its proper divisors (74081).

229957 is a wasteful number, since it uses less digits than its factorization.

229957 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65 (or 39 counting only the distinct ones).

The product of its digits is 11340, while the sum is 34.

The square root of 229957 is about 479.5383196367. The cubic root of 229957 is about 61.2654382853.

The spelling of 229957 in words is "two hundred twenty-nine thousand, nine hundred fifty-seven".

Divisors: 1 7 13 19 49 91 133 247 361 637 931 1729 2527 4693 12103 17689 32851 229957