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230180193 = 32191346083
BaseRepresentation
bin11011011100001…
…00010101100001
3121001010100212100
431232010111201
5432411231233
634501321013
75463333165
oct1556042541
9531110770
10230180193
11108a26871
1265106169
13388c32c9
14227daca5
151531b813
hexdb84561

230180193 has 12 divisors (see below), whose sum is σ = 349981840. Its totient is φ = 145376856.

The previous prime is 230180189. The next prime is 230180201. The reversal of 230180193 is 391081032.

It is not a de Polignac number, because 230180193 - 22 = 230180189 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (230180123) 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 11 ways as a sum of consecutive naturals, for example, 672871 + ... + 673212.

Almost surely, 2230180193 is an apocalyptic number.

It is an amenable number.

230180193 is a deficient number, since it is larger than the sum of its proper divisors (119801647).

230180193 is a wasteful number, since it uses less digits than its factorization.

230180193 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1346108 (or 1346105 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 230180193 is about 15171.6905122666. The cubic root of 230180193 is about 612.8525299761.

The spelling of 230180193 in words is "two hundred thirty million, one hundred eighty thousand, one hundred ninety-three".

Divisors: 1 3 9 19 57 171 1346083 4038249 12114747 25575577 76726731 230180193