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230285033 = 11181115663
BaseRepresentation
bin11011011100111…
…01111011101001
3121001022200200022
431232131323221
5432423110113
634503450225
75464250636
oct1556357351
9531280608
10230285033
11108a98610
1265156975
133892bc44
142282718d
151533c908
hexdb9dee9

230285033 has 8 divisors (see below), whose sum is σ = 252610176. Its totient is φ = 208191600.

The previous prime is 230285023. The next prime is 230285047. The reversal of 230285033 is 330582032.

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

It is a cyclic number.

It is not a de Polignac number, because 230285033 - 24 = 230285017 is a prime.

It is a super-2 number, since 2×2302850332 = 106062392847622178, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 230284993 and 230285011.

It is not an unprimeable number, because it can be changed into a prime (230285023) 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 7 ways as a sum of consecutive naturals, for example, 55841 + ... + 59822.

It is an arithmetic number, because the mean of its divisors is an integer number (31576272).

Almost surely, 2230285033 is an apocalyptic number.

It is an amenable number.

230285033 is a deficient number, since it is larger than the sum of its proper divisors (22325143).

230285033 is a wasteful number, since it uses less digits than its factorization.

230285033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115855.

The product of its (nonzero) digits is 4320, while the sum is 26.

The square root of 230285033 is about 15175.1452381847. The cubic root of 230285033 is about 612.9455610141.

The spelling of 230285033 in words is "two hundred thirty million, two hundred eighty-five thousand, thirty-three".

Divisors: 1 11 181 1991 115663 1272293 20935003 230285033