Base | Representation |
---|---|
bin | 111111110000010101… |
… | …011101000110001110 |
3 | 20112200212021220221001 |
4 | 333300111131012032 |
5 | 2110144401243421 |
6 | 51240515530514 |
7 | 4642264025056 |
oct | 776025350616 |
9 | 215625256831 |
10 | 68456665486 |
11 | 2703a004000 |
12 | 11325bb9a3a |
13 | 65bc791b71 |
14 | 3455a72566 |
15 | 1ba9da6691 |
hex | ff055d18e |
68456665486 has 32 divisors (see below), whose sum is σ = 118890385920. Its totient is φ = 29478925080.
The previous prime is 68456665481. The next prime is 68456665489.
68456665486 is nontrivially palindromic in base 10.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (68456665481) 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, 626166 + ... + 727321.
It is an arithmetic number, because the mean of its divisors is an integer number (3715324560).
Almost surely, 268456665486 is an apocalyptic number.
68456665486 is a deficient number, since it is larger than the sum of its proper divisors (50433720434).
68456665486 is a wasteful number, since it uses less digits than its factorization.
68456665486 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1353541 (or 1353519 counting only the distinct ones).
The product of its digits is 199065600, while the sum is 64.
The spelling of 68456665486 in words is "sixty-eight billion, four hundred fifty-six million, six hundred sixty-five thousand, four hundred eighty-six".
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