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230122311 = 376707437
BaseRepresentation
bin11011011011101…
…10001101000111
3121001000102110120
431231312031013
5432402403221
634500153023
75463002346
oct1555661507
9531012416
10230122311
11108997331
1265098773
13388a2b63
14227c3b5d
15153095c6
hexdb76347

230122311 has 4 divisors (see below), whose sum is σ = 306829752. Its totient is φ = 153414872.

The previous prime is 230122307. The next prime is 230122313. The reversal of 230122311 is 113221032.

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 230122311 - 22 = 230122307 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (230122313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38353716 + ... + 38353721.

It is an arithmetic number, because the mean of its divisors is an integer number (76707438).

Almost surely, 2230122311 is an apocalyptic number.

230122311 is a deficient number, since it is larger than the sum of its proper divisors (76707441).

230122311 is an equidigital number, since it uses as much as digits as its factorization.

230122311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76707440.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 230122311 is about 15169.7828263954. The cubic root of 230122311 is about 612.8011555818.

Adding to 230122311 its reverse (113221032), we get a palindrome (343343343).

The spelling of 230122311 in words is "two hundred thirty million, one hundred twenty-two thousand, three hundred eleven".

Divisors: 1 3 76707437 230122311