Base | Representation |
---|---|
bin | 1001101000101… |
… | …00110001000100 |
3 | 12122002100121210 |
4 | 10310110301010 |
5 | 131142403122 |
6 | 12004211420 |
7 | 2001001413 |
oct | 464246104 |
9 | 178070553 |
10 | 80825412 |
11 | 41695368 |
12 | 23099b70 |
13 | 1398bcb5 |
14 | aa3d47a |
15 | 716840c |
hex | 4d14c44 |
80825412 has 24 divisors (see below), whose sum is σ = 199686816. Its totient is φ = 25356928.
The previous prime is 80825389. The next prime is 80825413. The reversal of 80825412 is 21452808.
It is a self number, because there is not a number n which added to its sum of digits gives 80825412.
It is not an unprimeable number, because it can be changed into a prime (80825413) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 197898 + ... + 198305.
It is an arithmetic number, because the mean of its divisors is an integer number (8320284).
Almost surely, 280825412 is an apocalyptic number.
It is an amenable number.
80825412 is an abundant number, since it is smaller than the sum of its proper divisors (118861404).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
80825412 is a wasteful number, since it uses less digits than its factorization.
80825412 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 396227 (or 396225 counting only the distinct ones).
The product of its (nonzero) digits is 5120, while the sum is 30.
The square root of 80825412 is about 8990.2954345227. The cubic root of 80825412 is about 432.3637839378.
The spelling of 80825412 in words is "eighty million, eight hundred twenty-five thousand, four hundred twelve".
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