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230077409 is a prime number
BaseRepresentation
bin11011011011010…
…11001111100001
3121000221010212112
431231223033201
5432344434114
634455205105
75462424422
oct1555531741
9530833775
10230077409
11108966621
1265076795
13388885a3
14227b1649
15152eb13e
hexdb6b3e1

230077409 has 2 divisors, whose sum is σ = 230077410. Its totient is φ = 230077408.

The previous prime is 230077373. The next prime is 230077427. The reversal of 230077409 is 904770032.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 228856384 + 1221025 = 15128^2 + 1105^2 .

It is a cyclic number.

It is not a de Polignac number, because 230077409 - 224 = 213300193 is a prime.

It is a super-2 number, since 2×2300774092 = 105871228264306562, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (230077469) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115038704 + 115038705.

It is an arithmetic number, because the mean of its divisors is an integer number (115038705).

Almost surely, 2230077409 is an apocalyptic number.

It is an amenable number.

230077409 is a deficient number, since it is larger than the sum of its proper divisors (1).

230077409 is an equidigital number, since it uses as much as digits as its factorization.

230077409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10584, while the sum is 32.

The square root of 230077409 is about 15168.3027725583. The cubic root of 230077409 is about 612.7612959274.

The spelling of 230077409 in words is "two hundred thirty million, seventy-seven thousand, four hundred nine".