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230454409 is a prime number
BaseRepresentation
bin11011011110001…
…11010010001001
3121001122022000111
431233013102021
5432444020114
634511234321
75465554513
oct1557072211
9531568014
10230454409
111090a3899
12652189a1
133898b073
142286cbb3
1515372bc4
hexdbc7489

230454409 has 2 divisors, whose sum is σ = 230454410. Its totient is φ = 230454408.

The previous prime is 230454373. The next prime is 230454487. The reversal of 230454409 is 904454032.

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., 118200384 + 112254025 = 10872^2 + 10595^2 .

It is a cyclic number.

It is not a de Polignac number, because 230454409 - 217 = 230323337 is a prime.

It is not a weakly prime, because it can be changed into another prime (230454109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115227204 + 115227205.

It is an arithmetic number, because the mean of its divisors is an integer number (115227205).

Almost surely, 2230454409 is an apocalyptic number.

It is an amenable number.

230454409 is a deficient number, since it is larger than the sum of its proper divisors (1).

230454409 is an equidigital number, since it uses as much as digits as its factorization.

230454409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17280, while the sum is 31.

The square root of 230454409 is about 15180.7249168147. The cubic root of 230454409 is about 613.0957992115.

The spelling of 230454409 in words is "two hundred thirty million, four hundred fifty-four thousand, four hundred nine".