Base | Representation |
---|---|
bin | 11100001000101011… |
… | …001100000010111011 |
3 | 2212222102000202220122 |
4 | 130020223030002323 |
5 | 443332314412311 |
6 | 21513423443455 |
7 | 2116432254335 |
oct | 341053140273 |
9 | 85872022818 |
10 | 30210310331 |
11 | 118a2a29323 |
12 | 5a3145658b |
13 | 2b05b1c296 |
14 | 1668352455 |
15 | bbc31d0db |
hex | 708acc0bb |
30210310331 has 6 divisors (see below), whose sum is σ = 31287967932. Its totient is φ = 29168574680.
The previous prime is 30210310307. The next prime is 30210310379. The reversal of 30210310331 is 13301301203.
It is not a de Polignac number, because 30210310331 - 26 = 30210310267 is a prime.
It is a super-2 number, since 2×302103103312 (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 (30210310391) by changing a digit.
It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 17960105 + ... + 17961786.
It is an arithmetic number, because the mean of its divisors is an integer number (5214661322).
Almost surely, 230210310331 is an apocalyptic number.
30210310331 is a deficient number, since it is larger than the sum of its proper divisors (1077657601).
30210310331 is an equidigital number, since it uses as much as digits as its factorization.
30210310331 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 35921949 (or 35921920 counting only the distinct ones).
The product of its (nonzero) digits is 162, while the sum is 17.
Adding to 30210310331 its reverse (13301301203), we get a palindrome (43511611534).
The spelling of 30210310331 in words is "thirty billion, two hundred ten million, three hundred ten thousand, three hundred thirty-one".
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