Base | Representation |
---|---|
bin | 111111010110110001… |
… | …100001101000101111 |
3 | 20111120222100010201002 |
4 | 333112301201220233 |
5 | 2103310110111440 |
6 | 51130200110515 |
7 | 4625535620342 |
oct | 772661415057 |
9 | 214528303632 |
10 | 68027816495 |
11 | 26939a24451 |
12 | 1122646543b |
13 | 655198c472 |
14 | 3414b1c459 |
15 | 1b823e5115 |
hex | fd6c61a2f |
68027816495 has 16 divisors (see below), whose sum is σ = 83875795488. Its totient is φ = 52928576640.
The previous prime is 68027816453. The next prime is 68027816503. The reversal of 68027816495 is 59461872086.
It is a happy number.
It is not a de Polignac number, because 68027816495 - 26 = 68027816431 is a prime.
It is a Duffinian number.
It is a self number, because there is not a number n which added to its sum of digits gives 68027816495.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 358040 + ... + 514050.
It is an arithmetic number, because the mean of its divisors is an integer number (5242237218).
Almost surely, 268027816495 is an apocalyptic number.
68027816495 is a deficient number, since it is larger than the sum of its proper divisors (15847978993).
68027816495 is a wasteful number, since it uses less digits than its factorization.
68027816495 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 158410.
The product of its (nonzero) digits is 5806080, while the sum is 56.
The spelling of 68027816495 in words is "sixty-eight billion, twenty-seven million, eight hundred sixteen thousand, four hundred ninety-five".
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