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230405353 is a prime number
BaseRepresentation
bin11011011101110…
…11010011101001
3121001112210201121
431232323103221
5432440432403
634510215241
75465261503
oct1556732351
9531483647
10230405353
1110906aa52
12651b4521
1338971939
1422858d73
15153633bd
hexdbbb4e9

230405353 has 2 divisors, whose sum is σ = 230405354. Its totient is φ = 230405352.

The previous prime is 230405339. The next prime is 230405387. The reversal of 230405353 is 353504032.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 192987664 + 37417689 = 13892^2 + 6117^2 .

It is a cyclic number.

It is not a de Polignac number, because 230405353 - 29 = 230404841 is a prime.

It is not a weakly prime, because it can be changed into another prime (230405303) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115202676 + 115202677.

It is an arithmetic number, because the mean of its divisors is an integer number (115202677).

Almost surely, 2230405353 is an apocalyptic number.

It is an amenable number.

230405353 is a deficient number, since it is larger than the sum of its proper divisors (1).

230405353 is an equidigital number, since it uses as much as digits as its factorization.

230405353 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5400, while the sum is 25.

The square root of 230405353 is about 15179.1090977040. The cubic root of 230405353 is about 613.0522936262.

Adding to 230405353 its reverse (353504032), we get a palindrome (583909385).

The spelling of 230405353 in words is "two hundred thirty million, four hundred five thousand, three hundred fifty-three".