Base | Representation |
---|---|
bin | 11011111100111010… |
… | …111110011010110111 |
3 | 2212110122222120200200 |
4 | 123330322332122313 |
5 | 442431324402411 |
6 | 21442101211543 |
7 | 2111516221041 |
oct | 337472763267 |
9 | 85418876620 |
10 | 30013122231 |
11 | 11801696a54 |
12 | 5997400bb3 |
13 | 2aa400ab31 |
14 | 164a0a2a91 |
15 | ba9d6be56 |
hex | 6fcebe6b7 |
30013122231 has 12 divisors (see below), whose sum is σ = 43360458960. Its totient is φ = 20004976800.
The previous prime is 30013122229. The next prime is 30013122281. The reversal of 30013122231 is 13222131003.
30013122231 is a `hidden beast` number, since 300 + 1 + 312 + 22 + 31 = 666.
It is not a de Polignac number, because 30013122231 - 21 = 30013122229 is a prime.
It is a super-2 number, since 2×300131222312 (a number of 22 digits) contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30013122281) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 263446 + ... + 359763.
It is an arithmetic number, because the mean of its divisors is an integer number (3613371580).
Almost surely, 230013122231 is an apocalyptic number.
30013122231 is a deficient number, since it is larger than the sum of its proper divisors (13347336729).
30013122231 is a wasteful number, since it uses less digits than its factorization.
30013122231 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 628566 (or 628563 counting only the distinct ones).
The product of its (nonzero) digits is 216, while the sum is 18.
Adding to 30013122231 its reverse (13222131003), we get a palindrome (43235253234).
The spelling of 30013122231 in words is "thirty billion, thirteen million, one hundred twenty-two thousand, two hundred thirty-one".
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