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230289317 = 2310012579
BaseRepresentation
bin11011011100111…
…10111110100101
3121001022220112222
431232132332211
5432423224232
634503522125
75464266266
oct1556367645
9531286488
10230289317
11108aa0855
1265159345
1338930b8b
142282896d
151533dd12
hexdb9efa5

230289317 has 4 divisors (see below), whose sum is σ = 240301920. Its totient is φ = 220276716.

The previous prime is 230289313. The next prime is 230289341. The reversal of 230289317 is 713982032.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 230289317 - 22 = 230289313 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 (230289313) 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 3 ways as a sum of consecutive naturals, for example, 5006267 + ... + 5006312.

It is an arithmetic number, because the mean of its divisors is an integer number (60075480).

Almost surely, 2230289317 is an apocalyptic number.

It is an amenable number.

230289317 is a deficient number, since it is larger than the sum of its proper divisors (10012603).

230289317 is a wasteful number, since it uses less digits than its factorization.

230289317 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10012602.

The product of its (nonzero) digits is 18144, while the sum is 35.

The square root of 230289317 is about 15175.2863893898. The cubic root of 230289317 is about 612.9493618726.

It can be divided in two parts, 2302 and 89317, that added together give a palindrome (91619).

The spelling of 230289317 in words is "two hundred thirty million, two hundred eighty-nine thousand, three hundred seventeen".

Divisors: 1 23 10012579 230289317