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223513253 is a prime number
BaseRepresentation
bin11010101001010…
…00101010100101
3120120120122112122
431110220222211
5424204411003
634102355325
75352555065
oct1524505245
9516518478
10223513253
111051928a7
1262a2bb45
13373ca882
14219833a5
1514951238
hexd528aa5

223513253 has 2 divisors, whose sum is σ = 223513254. Its totient is φ = 223513252.

The previous prime is 223513223. The next prime is 223513259. The reversal of 223513253 is 352315322.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 221920609 + 1592644 = 14897^2 + 1262^2 .

It is a cyclic number.

It is not a de Polignac number, because 223513253 - 28 = 223512997 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (223513259) 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 as a sum of consecutive naturals, namely, 111756626 + 111756627.

It is an arithmetic number, because the mean of its divisors is an integer number (111756627).

Almost surely, 2223513253 is an apocalyptic number.

It is an amenable number.

223513253 is a deficient number, since it is larger than the sum of its proper divisors (1).

223513253 is an equidigital number, since it uses as much as digits as its factorization.

223513253 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5400, while the sum is 26.

The square root of 223513253 is about 14950.3596277815. The cubic root of 223513253 is about 606.8775793582.

Adding to 223513253 its reverse (352315322), we get a palindrome (575828575).

The spelling of 223513253 in words is "two hundred twenty-three million, five hundred thirteen thousand, two hundred fifty-three".