Base | Representation |
---|---|
bin | 1000001010100… |
… | …00101110101001 |
3 | 11202212120000111 |
4 | 10011100232221 |
5 | 120013104410 |
6 | 10443534321 |
7 | 1461065530 |
oct | 405205651 |
9 | 152776014 |
10 | 68488105 |
11 | 35729144 |
12 | 1ab2a3a1 |
13 | 1125c60a |
14 | 914b317 |
15 | 602cb8a |
hex | 4150ba9 |
68488105 has 16 divisors (see below), whose sum is σ = 94477824. Its totient is φ = 46687680.
The previous prime is 68488097. The next prime is 68488127. The reversal of 68488105 is 50188486.
It is not a de Polignac number, because 68488105 - 23 = 68488097 is a prime.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 400 + ... + 11710.
It is an arithmetic number, because the mean of its divisors is an integer number (5904864).
Almost surely, 268488105 is an apocalyptic number.
It is an amenable number.
68488105 is a deficient number, since it is larger than the sum of its proper divisors (25989719).
68488105 is a wasteful number, since it uses less digits than its factorization.
68488105 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 11496.
The product of its (nonzero) digits is 61440, while the sum is 40.
The square root of 68488105 is about 8275.7540441944. The cubic root of 68488105 is about 409.1397887797.
The spelling of 68488105 in words is "sixty-eight million, four hundred eighty-eight thousand, one hundred five".
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