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230401 = 1713553
BaseRepresentation
bin111000010000000001
3102201001101
4320100001
524333101
64534401
71646503
oct702001
9381041
10230401
11148116
12b1401
1380b42
145dd73
1548401
hex38401

230401 has 4 divisors (see below), whose sum is σ = 243972. Its totient is φ = 216832.

The previous prime is 230393. The next prime is 230431. The reversal of 230401 is 104032.

It is a Cunningham number, because it is equal to 4802+1.

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 179776 + 50625 = 424^2 + 225^2 .

It is a cyclic number.

It is not a de Polignac number, because 230401 - 23 = 230393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (230431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6760 + ... + 6793.

It is an arithmetic number, because the mean of its divisors is an integer number (60993).

It is a Proth number, since it is equal to 225 ⋅ 210 + 1 and 225 < 210.

2230401 is an apocalyptic number.

It is an amenable number.

230401 is a deficient number, since it is larger than the sum of its proper divisors (13571).

230401 is a wasteful number, since it uses less digits than its factorization.

230401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13570.

The product of its (nonzero) digits is 24, while the sum is 10.

The square root of 230401 is about 480.0010416655. The cubic root of 230401 is about 61.3048432846.

Adding to 230401 its reverse (104032), we get a palindrome (334433).

It can be divided in two parts, 2 and 30401, that added together give a palindrome (30403).

The spelling of 230401 in words is "two hundred thirty thousand, four hundred one".

Divisors: 1 17 13553 230401