Base | Representation |
---|---|
bin | 1000001010100… |
… | …00110111111001 |
3 | 11202212120211102 |
4 | 10011100313321 |
5 | 120013114242 |
6 | 10443541145 |
7 | 1461100334 |
oct | 405206771 |
9 | 152776742 |
10 | 68488697 |
11 | 35729632 |
12 | 1ab2a7b5 |
13 | 1125c974 |
14 | 914b61b |
15 | 602ce32 |
hex | 4150df9 |
68488697 has 4 divisors (see below), whose sum is σ = 68505936. Its totient is φ = 68471460.
The previous prime is 68488681. The next prime is 68488709. The reversal of 68488697 is 79688486.
It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.
It is a cyclic number.
It is not a de Polignac number, because 68488697 - 24 = 68488681 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (68488657) by changing a digit.
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 3 ways as a sum of consecutive naturals, for example, 698 + ... + 11724.
It is an arithmetic number, because the mean of its divisors is an integer number (17126484).
Almost surely, 268488697 is an apocalyptic number.
It is an amenable number.
68488697 is a deficient number, since it is larger than the sum of its proper divisors (17239).
68488697 is a wasteful number, since it uses less digits than its factorization.
68488697 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 17238.
The product of its digits is 4644864, while the sum is 56.
The square root of 68488697 is about 8275.7898112506. The cubic root of 68488697 is about 409.1409676222.
The spelling of 68488697 in words is "sixty-eight million, four hundred eighty-eight thousand, six hundred ninety-seven".
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