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230766749 is a prime number
BaseRepresentation
bin11011100000100…
…11100010011101
3121002020011110122
431300103202131
5433034013444
634522044325
75501325233
oct1560234235
9532204418
10230766749
11109297524
12653496a5
1338a6a295
1422910953
15153d54ee
hexdc1389d

230766749 has 2 divisors, whose sum is σ = 230766750. Its totient is φ = 230766748.

The previous prime is 230766713. The next prime is 230766763. The reversal of 230766749 is 947667032.

It is a happy number.

230766749 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., 142969849 + 87796900 = 11957^2 + 9370^2 .

It is a cyclic number.

It is not a de Polignac number, because 230766749 - 220 = 229718173 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (230766049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115383374 + 115383375.

It is an arithmetic number, because the mean of its divisors is an integer number (115383375).

Almost surely, 2230766749 is an apocalyptic number.

It is an amenable number.

230766749 is a deficient number, since it is larger than the sum of its proper divisors (1).

230766749 is an equidigital number, since it uses as much as digits as its factorization.

230766749 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 381024, while the sum is 44.

The square root of 230766749 is about 15191.0088210099. The cubic root of 230766749 is about 613.3726549761.

The spelling of 230766749 in words is "two hundred thirty million, seven hundred sixty-six thousand, seven hundred forty-nine".