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130233 = 343411
BaseRepresentation
bin11111110010111001
320121122110
4133302321
513131413
62442533
71051455
oct376271
9217573
10130233
1189934
1263449
134737c
1435665
15288c3
hex1fcb9

130233 has 4 divisors (see below), whose sum is σ = 173648. Its totient is φ = 86820.

The previous prime is 130223. The next prime is 130241. The reversal of 130233 is 332031.

It is a happy number.

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 not a de Polignac number, because 130233 - 25 = 130201 is a prime.

It is a D-number.

It is a Duffinian number.

It is a Curzon number.

130233 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (130223) 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, 21703 + ... + 21708.

It is an arithmetic number, because the mean of its divisors is an integer number (43412).

2130233 is an apocalyptic number.

It is an amenable number.

130233 is a deficient number, since it is larger than the sum of its proper divisors (43415).

130233 is an equidigital number, since it uses as much as digits as its factorization.

130233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43414.

The product of its (nonzero) digits is 54, while the sum is 12.

The square root of 130233 is about 360.8780957609. The cubic root of 130233 is about 50.6882170175.

Adding to 130233 its reverse (332031), we get a palindrome (462264).

It can be divided in two parts, 130 and 233, that added together give a palindrome (363).

The spelling of 130233 in words is "one hundred thirty thousand, two hundred thirty-three".

Divisors: 1 3 43411 130233