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230044657 is a prime number
BaseRepresentation
bin11011011011000…
…11001111110001
3121000212110221111
431231203033301
5432342412112
634454353321
75462230063
oct1555431761
9530773844
10230044657
11108943a57
126505b841
13388766cb
14227a3733
15152e15a7
hexdb633f1

230044657 has 2 divisors, whose sum is σ = 230044658. Its totient is φ = 230044656.

The previous prime is 230044637. The next prime is 230044693. The reversal of 230044657 is 756440032.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 229340736 + 703921 = 15144^2 + 839^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-230044657 is a prime.

It is equal to p12644923 and since 230044657 and 12644923 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (230044627) 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, 115022328 + 115022329.

It is an arithmetic number, because the mean of its divisors is an integer number (115022329).

Almost surely, 2230044657 is an apocalyptic number.

It is an amenable number.

230044657 is a deficient number, since it is larger than the sum of its proper divisors (1).

230044657 is an equidigital number, since it uses as much as digits as its factorization.

230044657 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20160, while the sum is 31.

The square root of 230044657 is about 15167.2231143344. The cubic root of 230044657 is about 612.7322185973.

Adding to 230044657 its reverse (756440032), we get a palindrome (986484689).

The spelling of 230044657 in words is "two hundred thirty million, forty-four thousand, six hundred fifty-seven".