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230312323133 = 514494476517
BaseRepresentation
bin1101011001111110101…
…1110010100000111101
3211000110212021020122222
43112133223302200331
512233134423320013
6253445400215125
722432232305634
oct3263753624075
9730425236588
10230312323133
1189747336222
123877716a4a5
1318945308159
14b20bbca51b
155ece6e3508
hex359faf283d

230312323133 has 4 divisors (see below), whose sum is σ = 230316851100. Its totient is φ = 230307795168.

The previous prime is 230312323099. The next prime is 230312323181. The reversal of 230312323133 is 331323213032.

It is a happy number.

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 60652360729 + 169659962404 = 246277^2 + 411898^2 .

It is a cyclic number.

It is not a de Polignac number, because 230312323133 - 210 = 230312322109 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (230312323193) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2186810 + ... + 2289707.

It is an arithmetic number, because the mean of its divisors is an integer number (57579212775).

Almost surely, 2230312323133 is an apocalyptic number.

It is an amenable number.

230312323133 is a deficient number, since it is larger than the sum of its proper divisors (4527967).

230312323133 is an equidigital number, since it uses as much as digits as its factorization.

230312323133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4527966.

The product of its (nonzero) digits is 5832, while the sum is 26.

Adding to 230312323133 its reverse (331323213032), we get a palindrome (561635536165).

The spelling of 230312323133 in words is "two hundred thirty billion, three hundred twelve million, three hundred twenty-three thousand, one hundred thirty-three".

Divisors: 1 51449 4476517 230312323133