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230112693 = 32139183943
BaseRepresentation
bin11011011011100…
…11110110110101
3121000222221021100
431231303312311
5432402101233
634500040313
75462632326
oct1555636665
9530887240
10230112693
11108990088
1265093099
133889b675
14227c044d
1515306813
hexdb73db5

230112693 has 12 divisors (see below), whose sum is σ = 334778080. Its totient is φ = 152303976.

The previous prime is 230112689. The next prime is 230112733. The reversal of 230112693 is 396211032.

It is not a de Polignac number, because 230112693 - 22 = 230112689 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (230112293) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 90721 + ... + 93222.

Almost surely, 2230112693 is an apocalyptic number.

It is an amenable number.

230112693 is a deficient number, since it is larger than the sum of its proper divisors (104665387).

230112693 is a wasteful number, since it uses less digits than its factorization.

230112693 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184088 (or 184085 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 27.

The square root of 230112693 is about 15169.4658112934. The cubic root of 230112693 is about 612.7926180877.

The spelling of 230112693 in words is "two hundred thirty million, one hundred twelve thousand, six hundred ninety-three".

Divisors: 1 3 9 139 417 1251 183943 551829 1655487 25568077 76704231 230112693