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23230212331 = 145771159361
BaseRepresentation
bin10101101000101000…
…001110100011101011
32012221221202001112111
4111220220032203223
5340033413243311
614401040023151
71451444355364
oct255050164353
965857661474
1023230212331
119940938397
124603901ab7
132262993c91
1411a52d6b6b
1590e635d21
hex568a0e8eb

23230212331 has 4 divisors (see below), whose sum is σ = 23230517464. Its totient is φ = 23229907200.

The previous prime is 23230212289. The next prime is 23230212431. The reversal of 23230212331 is 13321203232.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 23230212331 - 221 = 23228115179 is a prime.

It is a super-2 number, since 2×232302123312 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23230212431) 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, 66091 + ... + 225451.

It is an arithmetic number, because the mean of its divisors is an integer number (5807629366).

Almost surely, 223230212331 is an apocalyptic number.

23230212331 is a deficient number, since it is larger than the sum of its proper divisors (305133).

23230212331 is a wasteful number, since it uses less digits than its factorization.

23230212331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 305132.

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 23230212331 its reverse (13321203232), we get a palindrome (36551415563).

Subtracting from 23230212331 its reverse (13321203232), we obtain a palindrome (9909009099).

The spelling of 23230212331 in words is "twenty-three billion, two hundred thirty million, two hundred twelve thousand, three hundred thirty-one".

Divisors: 1 145771 159361 23230212331