Base | Representation |
---|---|
bin | 111111110010100011… |
… | …010000110001111110 |
3 | 20112210110020120001212 |
4 | 333302203100301332 |
5 | 2110233410330421 |
6 | 51244324404422 |
7 | 4643225013062 |
oct | 776243206176 |
9 | 215713216055 |
10 | 68493839486 |
11 | 27058a94416 |
12 | 11336546712 |
13 | 65c73a9307 |
14 | 345a98baa2 |
15 | 1bad29ae5b |
hex | ff28d0c7e |
68493839486 has 32 divisors (see below), whose sum is σ = 107335687680. Its totient is φ = 32740092000.
The previous prime is 68493839473. The next prime is 68493839489.
68493839486 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 (68493839489) 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, 2711165 + ... + 2736311.
It is an arithmetic number, because the mean of its divisors is an integer number (3354240240).
Almost surely, 268493839486 is an apocalyptic number.
68493839486 is a deficient number, since it is larger than the sum of its proper divisors (38841848194).
68493839486 is a wasteful number, since it uses less digits than its factorization.
68493839486 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 25640.
The product of its digits is 214990848, while the sum is 68.
The spelling of 68493839486 in words is "sixty-eight billion, four hundred ninety-three million, eight hundred thirty-nine thousand, four hundred eighty-six".
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