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230635729 is a prime number
BaseRepresentation
bin11011011111100…
…11100011010001
3121001222111202001
431233303203101
5433020320404
634515154001
75500241242
oct1557634321
9531874661
10230635729
11109208045
12652a5901
1338a2275c
14228b8cc9
15153ab7a4
hexdbf38d1

230635729 has 2 divisors, whose sum is σ = 230635730. Its totient is φ = 230635728.

The previous prime is 230635711. The next prime is 230635751. The reversal of 230635729 is 927536032.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 229068225 + 1567504 = 15135^2 + 1252^2 .

It is a cyclic number.

It is not a de Polignac number, because 230635729 - 211 = 230633681 is a prime.

It is a super-2 number, since 2×2306357292 = 106385678982722882, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (230635799) 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, 115317864 + 115317865.

It is an arithmetic number, because the mean of its divisors is an integer number (115317865).

Almost surely, 2230635729 is an apocalyptic number.

It is an amenable number.

230635729 is a deficient number, since it is larger than the sum of its proper divisors (1).

230635729 is an equidigital number, since it uses as much as digits as its factorization.

230635729 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 68040, while the sum is 37.

The square root of 230635729 is about 15186.6957894073. The cubic root of 230635729 is about 613.2565502953.

The spelling of 230635729 in words is "two hundred thirty million, six hundred thirty-five thousand, seven hundred twenty-nine".