Base | Representation |
---|---|
bin | 1001100011001… |
… | …00011011101001 |
3 | 12120201122212011 |
4 | 10301210123221 |
5 | 131001300040 |
6 | 11540515521 |
7 | 1661602603 |
oct | 461443351 |
9 | 176648764 |
10 | 80103145 |
11 | 41241751 |
12 | 229abba1 |
13 | 13798315 |
14 | a8d2173 |
15 | 70743ea |
hex | 4c646e9 |
80103145 has 16 divisors (see below), whose sum is σ = 101880000. Its totient is φ = 60291648.
The previous prime is 80103143. The next prime is 80103151. The reversal of 80103145 is 54130108.
It is a cyclic number.
It is not a de Polignac number, because 80103145 - 21 = 80103143 is a prime.
It is not an unprimeable number, because it can be changed into a prime (80103143) 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 15 ways as a sum of consecutive naturals, for example, 11326 + ... + 16984.
It is an arithmetic number, because the mean of its divisors is an integer number (6367500).
Almost surely, 280103145 is an apocalyptic number.
It is an amenable number.
80103145 is a deficient number, since it is larger than the sum of its proper divisors (21776855).
80103145 is a wasteful number, since it uses less digits than its factorization.
80103145 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 5832.
The product of its (nonzero) digits is 480, while the sum is 22.
The square root of 80103145 is about 8950.0360334470. The cubic root of 80103145 is about 431.0720411157.
The spelling of 80103145 in words is "eighty million, one hundred three thousand, one hundred forty-five".
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