Base | Representation |
---|---|
bin | 1000001100110… |
… | …10000011011101 |
3 | 11210102211000012 |
4 | 10012122003131 |
5 | 120102212240 |
6 | 10454213005 |
7 | 1463456255 |
oct | 406320335 |
9 | 153384005 |
10 | 68788445 |
11 | 35913860 |
12 | 1b054165 |
13 | 1133622b |
14 | 91c8965 |
15 | 608bb65 |
hex | 419a0dd |
68788445 has 16 divisors (see below), whose sum is σ = 90614592. Its totient is φ = 49714560.
The previous prime is 68788427. The next prime is 68788463. The reversal of 68788445 is 54488786.
It is an interprime number because it is at equal distance from previous prime (68788427) and next prime (68788463).
It is not a de Polignac number, because 68788445 - 216 = 68722909 is a prime.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 68788393 and 68788402.
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, 5129 + ... + 12801.
It is an arithmetic number, because the mean of its divisors is an integer number (5663412).
Almost surely, 268788445 is an apocalyptic number.
It is an amenable number.
68788445 is a deficient number, since it is larger than the sum of its proper divisors (21826147).
68788445 is a wasteful number, since it uses less digits than its factorization.
68788445 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 7852.
The product of its digits is 1720320, while the sum is 50.
The square root of 68788445 is about 8293.8799726063. The cubic root of 68788445 is about 409.7369818135.
The spelling of 68788445 in words is "sixty-eight million, seven hundred eighty-eight thousand, four hundred forty-five".
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