Base | Representation |
---|---|
bin | 101010101010000100010… |
… | …110010010010010101000 |
3 | 101101020102110221011121020 |
4 | 222222010112102102220 |
5 | 341011440330133342 |
6 | 10122354445012440 |
7 | 421533346663044 |
oct | 52520426222250 |
9 | 11336373834536 |
10 | 2931388130472 |
11 | a302161a667a |
12 | 3b4157b54120 |
13 | 183575b69539 |
14 | a1c467c3024 |
15 | 513bae310ec |
hex | 2aa845924a8 |
2931388130472 has 32 divisors (see below), whose sum is σ = 7356985790400. Its totient is φ = 973327314944.
The previous prime is 2931388130459. The next prime is 2931388130479. The reversal of 2931388130472 is 2740318831392.
It is not an unprimeable number, because it can be changed into a prime (2931388130479) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 237622572 + ... + 237634907.
It is an arithmetic number, because the mean of its divisors is an integer number (229905805950).
Almost surely, 22931388130472 is an apocalyptic number.
It is an amenable number.
2931388130472 is an abundant number, since it is smaller than the sum of its proper divisors (4425597659928).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
2931388130472 is a wasteful number, since it uses less digits than its factorization.
2931388130472 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 475257745 (or 475257741 counting only the distinct ones).
The product of its (nonzero) digits is 1741824, while the sum is 51.
The spelling of 2931388130472 in words is "two trillion, nine hundred thirty-one billion, three hundred eighty-eight million, one hundred thirty thousand, four hundred seventy-two".
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