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230220349 is a prime number
BaseRepresentation
bin11011011100011…
…10001000111101
3121001012101221121
431232032020331
5432414022344
634502230541
75463561232
oct1556161075
9531171847
10230220349
11108a53a57
1265125451
1338908678
142280b789
1515328684
hexdb8e23d

230220349 has 2 divisors, whose sum is σ = 230220350. Its totient is φ = 230220348.

The previous prime is 230220281. The next prime is 230220379. The reversal of 230220349 is 943022032.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 177076249 + 53144100 = 13307^2 + 7290^2 .

It is a cyclic number.

It is not a de Polignac number, because 230220349 - 221 = 228123197 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (230220379) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115110174 + 115110175.

It is an arithmetic number, because the mean of its divisors is an integer number (115110175).

Almost surely, 2230220349 is an apocalyptic number.

It is an amenable number.

230220349 is a deficient number, since it is larger than the sum of its proper divisors (1).

230220349 is an equidigital number, since it uses as much as digits as its factorization.

230220349 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2592, while the sum is 25.

The square root of 230220349 is about 15173.0138403680. The cubic root of 230220349 is about 612.8881662239. Note that the first 3 decimals are identical.

The spelling of 230220349 in words is "two hundred thirty million, two hundred twenty thousand, three hundred forty-nine".