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230448409 is a prime number
BaseRepresentation
bin11011011110001…
…01110100011001
3121001121222210021
431233011310121
5432443322114
634511150441
75465531152
oct1557056431
9531558707
10230448409
1110909a334
1265215421
1338988409
142286a929
1515371024
hexdbc5d19

230448409 has 2 divisors, whose sum is σ = 230448410. Its totient is φ = 230448408.

The previous prime is 230448403. The next prime is 230448437. The reversal of 230448409 is 904844032.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 221176384 + 9272025 = 14872^2 + 3045^2 .

It is a cyclic number.

It is not a de Polignac number, because 230448409 - 221 = 228351257 is a prime.

It is not a weakly prime, because it can be changed into another prime (230448403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115224204 + 115224205.

It is an arithmetic number, because the mean of its divisors is an integer number (115224205).

Almost surely, 2230448409 is an apocalyptic number.

It is an amenable number.

230448409 is a deficient number, since it is larger than the sum of its proper divisors (1).

230448409 is an equidigital number, since it uses as much as digits as its factorization.

230448409 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27648, while the sum is 34.

The square root of 230448409 is about 15180.5272965072. The cubic root of 230448409 is about 613.0904784097.

The spelling of 230448409 in words is "two hundred thirty million, four hundred forty-eight thousand, four hundred nine".