Base | Representation |
---|---|
bin | 101011011111111100100… |
… | …001110001000100001000 |
3 | 101120202202012111212100010 |
4 | 223133330201301010020 |
5 | 342433430134341442 |
6 | 10205123141311520 |
7 | 425652062050344 |
oct | 53377441610410 |
9 | 11522665455303 |
10 | 2989238980872 |
11 | a52802525841 |
12 | 4034021055a0 |
13 | 188b6528a571 |
14 | a4973a74624 |
15 | 52b54b5db9c |
hex | 2b7fc871108 |
2989238980872 has 32 divisors (see below), whose sum is σ = 7517846548800. Its totient is φ = 990446447424.
The previous prime is 2989238980759. The next prime is 2989238980879. The reversal of 2989238980872 is 2780898329892.
It is a junction number, because it is equal to n+sod(n) for n = 2989238980794 and 2989238980803.
It is not an unprimeable number, because it can be changed into a prime (2989238980879) 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, 372905047 + ... + 372913062.
It is an arithmetic number, because the mean of its divisors is an integer number (234932704650).
Almost surely, 22989238980872 is an apocalyptic number.
It is an amenable number.
2989238980872 is an abundant number, since it is smaller than the sum of its proper divisors (4528607567928).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
2989238980872 is a wasteful number, since it uses less digits than its factorization.
2989238980872 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 745818285 (or 745818281 counting only the distinct ones).
The product of its (nonzero) digits is 501645312, while the sum is 75.
The spelling of 2989238980872 in words is "two trillion, nine hundred eighty-nine billion, two hundred thirty-eight million, nine hundred eighty thousand, eight hundred seventy-two".
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