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230839 = 73673
BaseRepresentation
bin111000010110110111
3102201122121
4320112313
524341324
64540411
71651000
oct702667
9381577
10230839
11148484
12b1707
13810bb
14601a7
15485e4
hex385b7

230839 has 8 divisors (see below), whose sum is σ = 269600. Its totient is φ = 197568.

The previous prime is 230833. The next prime is 230849. The reversal of 230839 is 938032.

It is a happy number.

It is not a de Polignac number, because 230839 - 25 = 230807 is a prime.

It is a d-powerful number, because it can be written as 215 + 39 + 83 + 0 + 311 + 93 .

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (230833) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7 + ... + 679.

It is an arithmetic number, because the mean of its divisors is an integer number (33700).

2230839 is an apocalyptic number.

230839 is a deficient number, since it is larger than the sum of its proper divisors (38761).

230839 is an frugal number, since it uses more digits than its factorization.

230839 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 694 (or 680 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 230839 is about 480.4570740451. The cubic root of 230839 is about 61.3436662123.

The spelling of 230839 in words is "two hundred thirty thousand, eight hundred thirty-nine".

Divisors: 1 7 49 343 673 4711 32977 230839