Base | Representation |
---|---|
bin | 1110001100110001000… |
… | …01100111001000100001 |
3 | 1201122022220120210101020 |
4 | 13012120201213020201 |
5 | 30443144401033241 |
6 | 1012044513200053 |
7 | 50151242501463 |
oct | 7063041471041 |
9 | 1648286523336 |
10 | 487890252321 |
11 | 178a0536786a |
12 | 7a681560029 |
13 | 3701433b9c4 |
14 | 19884bd8133 |
15 | ca57934b66 |
hex | 7198867221 |
487890252321 has 16 divisors (see below), whose sum is σ = 654848956608. Its totient is φ = 323102592000.
The previous prime is 487890252281. The next prime is 487890252329. The reversal of 487890252321 is 123252098784.
It is not a de Polignac number, because 487890252321 - 218 = 487889990177 is a prime.
It is not an unprimeable number, because it can be changed into a prime (487890252329) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 551491 + ... + 1131336.
It is an arithmetic number, because the mean of its divisors is an integer number (40928059788).
Almost surely, 2487890252321 is an apocalyptic number.
It is an amenable number.
487890252321 is a deficient number, since it is larger than the sum of its proper divisors (166958704287).
487890252321 is a wasteful number, since it uses less digits than its factorization.
487890252321 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1683472.
The product of its (nonzero) digits is 1935360, while the sum is 51.
The spelling of 487890252321 in words is "four hundred eighty-seven billion, eight hundred ninety million, two hundred fifty-two thousand, three hundred twenty-one".
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