Base | Representation |
---|---|
bin | 1000001010001… |
… | …10011000001111 |
3 | 11202210101212100 |
4 | 10011012120033 |
5 | 120010230321 |
6 | 10443010143 |
7 | 1460531115 |
oct | 405063017 |
9 | 152711770 |
10 | 68445711 |
11 | 356aa304 |
12 | 1ab09953 |
13 | 11246229 |
14 | 9139ab5 |
15 | 6020326 |
hex | 414660f |
68445711 has 12 divisors (see below), whose sum is σ = 99163792. Its totient is φ = 45493056.
The previous prime is 68445703. The next prime is 68445731. The reversal of 68445711 is 11754486.
It is a happy number.
68445711 is a `hidden beast` number, since 6 + 84 + 4 + 571 + 1 = 666.
It is not a de Polignac number, because 68445711 - 23 = 68445703 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (68445731) by changing a digit.
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 11 ways as a sum of consecutive naturals, for example, 8251 + ... + 14316.
Almost surely, 268445711 is an apocalyptic number.
68445711 is a deficient number, since it is larger than the sum of its proper divisors (30718081).
68445711 is a wasteful number, since it uses less digits than its factorization.
68445711 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 22910 (or 22907 counting only the distinct ones).
The product of its digits is 26880, while the sum is 36.
The square root of 68445711 is about 8273.1923101062. The cubic root of 68445711 is about 409.0553524517.
The spelling of 68445711 in words is "sixty-eight million, four hundred forty-five thousand, seven hundred eleven".
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