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230851433 = 304175913
BaseRepresentation
bin11011100001010…
…00001101101001
3121002101110122002
431300220031221
5433044221213
634523540345
75502130151
oct1560501551
9532343562
10230851433
1110934510a
126538a6b5
1338a999a7
1422933761
1515400658
hexdc28369

230851433 has 4 divisors (see below), whose sum is σ = 230930388. Its totient is φ = 230772480.

The previous prime is 230851363. The next prime is 230851447. The reversal of 230851433 is 334158032.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 207734569 + 23116864 = 14413^2 + 4808^2 .

It is a cyclic number.

It is not a de Polignac number, because 230851433 - 210 = 230850409 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 230851396 and 230851405.

It is not an unprimeable number, because it can be changed into a prime (230851333) 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, 34916 + ... + 40997.

It is an arithmetic number, because the mean of its divisors is an integer number (57732597).

Almost surely, 2230851433 is an apocalyptic number.

It is an amenable number.

230851433 is a deficient number, since it is larger than the sum of its proper divisors (78955).

230851433 is an equidigital number, since it uses as much as digits as its factorization.

230851433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78954.

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 230851433 is about 15193.7958719999. The cubic root of 230851433 is about 613.4476751681.

The spelling of 230851433 in words is "two hundred thirty million, eight hundred fifty-one thousand, four hundred thirty-three".

Divisors: 1 3041 75913 230851433