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213230112231 = 3110291644447
BaseRepresentation
bin1100011010010110000…
…0010100110111100111
3202101101101002000121010
43012211200110313213
511443143402042411
6241542341153303
721256020022533
oct3064540246747
9671341060533
10213230112231
1182480926354
12353aa3bb833
131715228c256
14a46b22abc3
15582ebcc7a6
hex31a5814de7

213230112231 has 8 divisors (see below), whose sum is σ = 284309835264. Its totient is φ = 142151898680.

The previous prime is 213230112211. The next prime is 213230112233. The reversal of 213230112231 is 132211032312.

213230112231 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 213230112231 - 29 = 213230111719 is a prime.

It is a super-2 number, since 2×2132301122312 (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 213230112198 and 213230112207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213230112233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8650 + ... + 653096.

It is an arithmetic number, because the mean of its divisors is an integer number (35538729408).

Almost surely, 2213230112231 is an apocalyptic number.

213230112231 is a deficient number, since it is larger than the sum of its proper divisors (71079723033).

213230112231 is a wasteful number, since it uses less digits than its factorization.

213230112231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 754741.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 213230112231 its reverse (132211032312), we get a palindrome (345441144543).

The spelling of 213230112231 in words is "two hundred thirteen billion, two hundred thirty million, one hundred twelve thousand, two hundred thirty-one".

Divisors: 1 3 110291 330873 644447 1933341 71076704077 213230112231