Base | Representation |
---|---|
bin | 1001101000100… |
… | …00010010101101 |
3 | 12122001102111000 |
4 | 10310100102231 |
5 | 131141311320 |
6 | 12003550513 |
7 | 2000564112 |
oct | 464202255 |
9 | 178042430 |
10 | 80807085 |
11 | 41682617 |
12 | 2308b439 |
13 | 13983858 |
14 | aa36909 |
15 | 7162c90 |
hex | 4d104ad |
80807085 has 16 divisors (see below), whose sum is σ = 143657280. Its totient is φ = 43097040.
The previous prime is 80807081. The next prime is 80807099. The reversal of 80807085 is 58070808.
It is not a de Polignac number, because 80807085 - 22 = 80807081 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (80807081) 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 15 ways as a sum of consecutive naturals, for example, 299151 + ... + 299420.
It is an arithmetic number, because the mean of its divisors is an integer number (8978580).
Almost surely, 280807085 is an apocalyptic number.
It is an amenable number.
80807085 is a deficient number, since it is larger than the sum of its proper divisors (62850195).
80807085 is a wasteful number, since it uses less digits than its factorization.
80807085 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 598585 (or 598579 counting only the distinct ones).
The product of its (nonzero) digits is 17920, while the sum is 36.
The square root of 80807085 is about 8989.2761110114. The cubic root of 80807085 is about 432.3311022607.
The spelling of 80807085 in words is "eighty million, eight hundred seven thousand, eighty-five".
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