Base | Representation |
---|---|
bin | 1001100011001… |
… | …00101100110101 |
3 | 12120201201100220 |
4 | 10301210230311 |
5 | 131001313440 |
6 | 11540524553 |
7 | 1661606034 |
oct | 461445465 |
9 | 176651326 |
10 | 80104245 |
11 | 41242561 |
12 | 229b0759 |
13 | 13798980 |
14 | a8d271b |
15 | 70748d0 |
hex | 4c64b35 |
80104245 has 32 divisors (see below), whose sum is σ = 138617472. Its totient is φ = 39267072.
The previous prime is 80104243. The next prime is 80104261. The reversal of 80104245 is 54240108.
It is not a de Polignac number, because 80104245 - 21 = 80104243 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (80104243) 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 31 ways as a sum of consecutive naturals, for example, 53274 + ... + 54756.
It is an arithmetic number, because the mean of its divisors is an integer number (4331796).
Almost surely, 280104245 is an apocalyptic number.
It is an amenable number.
80104245 is a deficient number, since it is larger than the sum of its proper divisors (58513227).
80104245 is a wasteful number, since it uses less digits than its factorization.
80104245 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1781.
The product of its (nonzero) digits is 1280, while the sum is 24.
The square root of 80104245 is about 8950.0974855026. The cubic root of 80104245 is about 431.0740143094.
The spelling of 80104245 in words is "eighty million, one hundred four thousand, two hundred forty-five".
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