Base | Representation |
---|---|
bin | 11101001001101000… |
… | …111001101111101011 |
3 | 2222210100220102210100 |
4 | 131021220321233223 |
5 | 1003100324330443 |
6 | 22213520320443 |
7 | 2155435365141 |
oct | 351150715753 |
9 | 88710812710 |
10 | 31300230123 |
11 | 12302189188 |
12 | 6096473123 |
13 | 2c4a880a36 |
14 | 172cdc9591 |
15 | c32d623d3 |
hex | 749a39beb |
31300230123 has 12 divisors (see below), whose sum is σ = 45213852528. Its totient is φ = 20865708240.
The previous prime is 31300230107. The next prime is 31300230151. The reversal of 31300230123 is 32103200313.
31300230123 is a `hidden beast` number, since 313 + 0 + 0 + 230 + 123 = 666.
It is not a de Polignac number, because 31300230123 - 24 = 31300230107 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 31300230096 and 31300230105.
It is not an unprimeable number, because it can be changed into a prime (31300230173) 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, 108661 + ... + 272777.
It is an arithmetic number, because the mean of its divisors is an integer number (3767821044).
Almost surely, 231300230123 is an apocalyptic number.
31300230123 is a deficient number, since it is larger than the sum of its proper divisors (13913622405).
31300230123 is a wasteful number, since it uses less digits than its factorization.
31300230123 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 185314 (or 185311 counting only the distinct ones).
The product of its (nonzero) digits is 324, while the sum is 18.
Adding to 31300230123 its reverse (32103200313), we get a palindrome (63403430436).
The spelling of 31300230123 in words is "thirty-one billion, three hundred million, two hundred thirty thousand, one hundred twenty-three".
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