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430231 = 1034177
BaseRepresentation
bin1101001000010010111
3210212011111
41221002113
5102231411
613115451
73441214
oct1510227
9725144
10430231
1127426a
12188b87
13120a99
14b2b0b
1587721
hex69097

430231 has 4 divisors (see below), whose sum is σ = 434512. Its totient is φ = 425952.

The previous prime is 430193. The next prime is 430259. The reversal of 430231 is 132034.

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

It is a cyclic number.

It is not a de Polignac number, because 430231 - 29 = 429719 is a prime.

It is a super-2 number, since 2×4302312 = 370197426722, which contains 22 as substring.

It is a Duffinian number.

430231 is a lucky number.

It is a nialpdrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (436231) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1986 + ... + 2191.

It is an arithmetic number, because the mean of its divisors is an integer number (108628).

2430231 is an apocalyptic number.

430231 is a deficient number, since it is larger than the sum of its proper divisors (4281).

430231 is a wasteful number, since it uses less digits than its factorization.

430231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4280.

The product of its (nonzero) digits is 72, while the sum is 13.

The square root of 430231 is about 655.9199646298. The cubic root of 430231 is about 75.4919366270.

Adding to 430231 its reverse (132034), we get a palindrome (562265).

The spelling of 430231 in words is "four hundred thirty thousand, two hundred thirty-one".

Divisors: 1 103 4177 430231