Base | Representation |
---|---|
bin | 11101000101101001… |
… | …101010010101100100 |
3 | 2222121201000001202110 |
4 | 131011221222111210 |
5 | 1002431212222132 |
6 | 22203130241020 |
7 | 2153663561556 |
oct | 350551522544 |
9 | 88551001673 |
10 | 31233320292 |
11 | 122784388a9 |
12 | 6077b86170 |
13 | 2c39a54915 |
14 | 172416d4d6 |
15 | c2c0471cc |
hex | 745a6a564 |
31233320292 has 24 divisors (see below), whose sum is σ = 72887957856. Its totient is φ = 10409648128.
The previous prime is 31233320191. The next prime is 31233320299. The reversal of 31233320292 is 29202333213.
It is not an unprimeable number, because it can be changed into a prime (31233320299) 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 7 ways as a sum of consecutive naturals, for example, 91293 + ... + 266084.
It is an arithmetic number, because the mean of its divisors is an integer number (3036998244).
Almost surely, 231233320292 is an apocalyptic number.
It is an amenable number.
31233320292 is an abundant number, since it is smaller than the sum of its proper divisors (41654637564).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
31233320292 is a wasteful number, since it uses less digits than its factorization.
31233320292 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 364667 (or 364665 counting only the distinct ones).
The product of its (nonzero) digits is 11664, while the sum is 30.
The spelling of 31233320292 in words is "thirty-one billion, two hundred thirty-three million, three hundred twenty thousand, two hundred ninety-two".
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