Base | Representation |
---|---|
bin | 1000000111011… |
… | …11001010000111 |
3 | 11202010020210122 |
4 | 10003233022013 |
5 | 114412312310 |
6 | 10431212155 |
7 | 1454512421 |
oct | 403571207 |
9 | 152106718 |
10 | 68088455 |
11 | 35485956 |
12 | 1a97705b |
13 | 1114c736 |
14 | 9085811 |
15 | 5e9e555 |
hex | 40ef287 |
68088455 has 12 divisors (see below), whose sum is σ = 82557720. Its totient is φ = 53906112.
The previous prime is 68088439. The next prime is 68088463. The reversal of 68088455 is 55488086.
It is not a de Polignac number, because 68088455 - 24 = 68088439 is a prime.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 217379 + ... + 217691.
It is an arithmetic number, because the mean of its divisors is an integer number (6879810).
Almost surely, 268088455 is an apocalyptic number.
68088455 is a deficient number, since it is larger than the sum of its proper divisors (14469265).
68088455 is an equidigital number, since it uses as much as digits as its factorization.
68088455 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 770 (or 457 counting only the distinct ones).
The product of its (nonzero) digits is 307200, while the sum is 44.
The square root of 68088455 is about 8251.5728803665. The cubic root of 68088455 is about 408.3424152730.
The spelling of 68088455 in words is "sixty-eight million, eighty-eight thousand, four hundred fifty-five".
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