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230723238 = 2338453873
BaseRepresentation
bin11011100000010…
…00111010100110
3121002010221210010
431300020322212
5433031120423
634521111050
75501054334
oct1560107246
9532127703
10230723238
11109267869
1265328486
1338a53535
14228dcb54
15153c7693
hexdc08ea6

230723238 has 8 divisors (see below), whose sum is σ = 461446488. Its totient is φ = 76907744.

The previous prime is 230723237. The next prime is 230723239. The reversal of 230723238 is 832327032.

It is an interprime number because it is at equal distance from previous prime (230723237) and next prime (230723239).

It is a sphenic number, since it is the product of 3 distinct primes.

230723238 is an admirable number.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (230723237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19226931 + ... + 19226942.

It is an arithmetic number, because the mean of its divisors is an integer number (57680811).

Almost surely, 2230723238 is an apocalyptic number.

230723238 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

230723238 is a wasteful number, since it uses less digits than its factorization.

230723238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38453878.

The product of its (nonzero) digits is 12096, while the sum is 30.

The square root of 230723238 is about 15189.5766234612. The cubic root of 230723238 is about 613.3341021441.

The spelling of 230723238 in words is "two hundred thirty million, seven hundred twenty-three thousand, two hundred thirty-eight".

Divisors: 1 2 3 6 38453873 76907746 115361619 230723238