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230038661 is a prime number
BaseRepresentation
bin11011011011000…
…01110010000101
3121000212011201102
431231201302011
5432342214121
634454305445
75462203436
oct1555416205
9530764642
10230038661
1110893a4a6
1265058285
1338873a68
14227a148d
15152de90b
hexdb61c85

230038661 has 2 divisors, whose sum is σ = 230038662. Its totient is φ = 230038660.

The previous prime is 230038579. The next prime is 230038687. The reversal of 230038661 is 166830032.

230038661 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 201469636 + 28569025 = 14194^2 + 5345^2 .

It is a cyclic number.

It is not a de Polignac number, because 230038661 - 218 = 229776517 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (230031661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115019330 + 115019331.

It is an arithmetic number, because the mean of its divisors is an integer number (115019331).

Almost surely, 2230038661 is an apocalyptic number.

It is an amenable number.

230038661 is a deficient number, since it is larger than the sum of its proper divisors (1).

230038661 is an equidigital number, since it uses as much as digits as its factorization.

230038661 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5184, while the sum is 29.

The square root of 230038661 is about 15167.0254499688. The cubic root of 230038661 is about 612.7268950305.

Adding to 230038661 its reverse (166830032), we get a palindrome (396868693).

The spelling of 230038661 in words is "two hundred thirty million, thirty-eight thousand, six hundred sixty-one".