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230112345 = 3529695167
BaseRepresentation
bin11011011011100…
…11110001011001
3121000222220210110
431231303301121
5432402043340
634500034533
75462631321
oct1555636131
9530886713
10230112345
1110898a8a1
1265092a49
133889b468
14227c0281
1515306680
hexdb73c59

230112345 has 16 divisors (see below), whose sum is σ = 368375040. Its totient is φ = 122661504.

The previous prime is 230112341. The next prime is 230112347. The reversal of 230112345 is 543211032.

It is not a de Polignac number, because 230112345 - 22 = 230112341 is a prime.

It is not an unprimeable number, because it can be changed into a prime (230112341) 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 in 15 ways as a sum of consecutive naturals, for example, 41952 + ... + 47118.

It is an arithmetic number, because the mean of its divisors is an integer number (23023440).

Almost surely, 2230112345 is an apocalyptic number.

It is an amenable number.

230112345 is a deficient number, since it is larger than the sum of its proper divisors (138262695).

230112345 is a wasteful number, since it uses less digits than its factorization.

230112345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8144.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 230112345 is about 15169.4543408786. The cubic root of 230112345 is about 612.7923091783.

Adding to 230112345 its reverse (543211032), we get a palindrome (773323377).

It can be divided in two parts, 230 and 112345, that added together give a triangular number (112575 = T474).

The spelling of 230112345 in words is "two hundred thirty million, one hundred twelve thousand, three hundred forty-five".

Divisors: 1 3 5 15 2969 5167 8907 14845 15501 25835 44535 77505 15340823 46022469 76704115 230112345