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230257723 is a prime number
BaseRepresentation
bin11011011100101…
…11010000111011
3121001021022012211
431232113100323
5432421221343
634503115551
75464105213
oct1556272073
9531238184
10230257723
11108a7a043
1265142bb7
133891c697
142281b243
151533479d
hexdb9743b

230257723 has 2 divisors, whose sum is σ = 230257724. Its totient is φ = 230257722.

The previous prime is 230257721. The next prime is 230257793. The reversal of 230257723 is 327752032.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 230257723 - 21 = 230257721 is a prime.

It is a super-2 number, since 2×2302577232 = 106037238002289458, which contains 22 as substring.

Together with 230257721, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (230257721) 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, 115128861 + 115128862.

It is an arithmetic number, because the mean of its divisors is an integer number (115128862).

Almost surely, 2230257723 is an apocalyptic number.

230257723 is a deficient number, since it is larger than the sum of its proper divisors (1).

230257723 is an equidigital number, since it uses as much as digits as its factorization.

230257723 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17640, while the sum is 31.

The square root of 230257723 is about 15174.2453848618. The cubic root of 230257723 is about 612.9213298764.

It can be divided in two parts, 2302 and 57723, that added together give a square (60025 = 2452).

The spelling of 230257723 in words is "two hundred thirty million, two hundred fifty-seven thousand, seven hundred twenty-three".