Base | Representation |
---|---|
bin | 1001101000100… |
… | …11000010010101 |
3 | 12122001222220022 |
4 | 10310103002111 |
5 | 131142141300 |
6 | 12004114525 |
7 | 2000641640 |
oct | 464230225 |
9 | 178058808 |
10 | 80818325 |
11 | 41690005 |
12 | 23095a45 |
13 | 139889c3 |
14 | aa3aa57 |
15 | 7166285 |
hex | 4d13095 |
80818325 has 12 divisors (see below), whose sum is σ = 114531360. Its totient is φ = 55418160.
The previous prime is 80818313. The next prime is 80818327. The reversal of 80818325 is 52381808.
It is not a de Polignac number, because 80818325 - 212 = 80814229 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (35).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (80818327) 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, 230735 + ... + 231084.
It is an arithmetic number, because the mean of its divisors is an integer number (9544280).
Almost surely, 280818325 is an apocalyptic number.
It is an amenable number.
80818325 is a deficient number, since it is larger than the sum of its proper divisors (33713035).
80818325 is a wasteful number, since it uses less digits than its factorization.
80818325 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 461836 (or 461831 counting only the distinct ones).
The product of its (nonzero) digits is 15360, while the sum is 35.
The square root of 80818325 is about 8989.9012786571. The cubic root of 80818325 is about 432.3511466099.
The spelling of 80818325 in words is "eighty million, eight hundred eighteen thousand, three hundred twenty-five".
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