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230857 = 1131677
BaseRepresentation
bin111000010111001001
3102201200021
4320113021
524341412
64540441
71651024
oct702711
9381607
10230857
111484a0
12b1721
1381103
14601bb
1548607
hex385c9

230857 has 8 divisors (see below), whose sum is σ = 260352. Its totient is φ = 202800.

The previous prime is 230849. The next prime is 230861. The reversal of 230857 is 758032.

230857 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 230857 - 23 = 230849 is a prime.

It is a d-powerful number, because it can be written as 27 + 37 + 85 + 0 + 57 + 76 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (230807) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3 + ... + 679.

It is an arithmetic number, because the mean of its divisors is an integer number (32544).

2230857 is an apocalyptic number.

It is an amenable number.

230857 is a deficient number, since it is larger than the sum of its proper divisors (29495).

230857 is a wasteful number, since it uses less digits than its factorization.

230857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 719.

The product of its (nonzero) digits is 1680, while the sum is 25.

The square root of 230857 is about 480.4758058425. The cubic root of 230857 is about 61.3452606241.

Adding to 230857 its reverse (758032), we get a palindrome (988889).

The spelling of 230857 in words is "two hundred thirty thousand, eight hundred fifty-seven".

Divisors: 1 11 31 341 677 7447 20987 230857