Base | Representation |
---|---|
bin | 1001100110100… |
… | …00100101001001 |
3 | 12121120011111200 |
4 | 10303100211021 |
5 | 131104433441 |
6 | 11554214413 |
7 | 1665426225 |
oct | 463204511 |
9 | 177504450 |
10 | 80546121 |
11 | 41514547 |
12 | 22b84409 |
13 | 138c1b36 |
14 | a9a9785 |
15 | 71107b6 |
hex | 4cd0949 |
80546121 has 12 divisors (see below), whose sum is σ = 116762100. Its totient is φ = 53504640.
The previous prime is 80546093. The next prime is 80546129. The reversal of 80546121 is 12164508.
It can be written as a sum of positive squares in 2 ways, for example, as 47610000 + 32936121 = 6900^2 + 5739^2 .
It is not a de Polignac number, because 80546121 - 26 = 80546057 is a prime.
It is not an unprimeable number, because it can be changed into a prime (80546129) 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, 13396 + ... + 18453.
It is an arithmetic number, because the mean of its divisors is an integer number (9730175).
Almost surely, 280546121 is an apocalyptic number.
It is an amenable number.
80546121 is a deficient number, since it is larger than the sum of its proper divisors (36215979).
80546121 is a wasteful number, since it uses less digits than its factorization.
80546121 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 32136 (or 32133 counting only the distinct ones).
The product of its (nonzero) digits is 1920, while the sum is 27.
The square root of 80546121 is about 8974.7490772723. The cubic root of 80546121 is about 431.8652003546.
The spelling of 80546121 in words is "eighty million, five hundred forty-six thousand, one hundred twenty-one".
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