Base | Representation |
---|---|
bin | 1001101000101… |
… | …00110000101100 |
3 | 12122002100120220 |
4 | 10310110300230 |
5 | 131142403023 |
6 | 12004211340 |
7 | 2001001350 |
oct | 464246054 |
9 | 178070526 |
10 | 80825388 |
11 | 41695346 |
12 | 23099b50 |
13 | 1398bc97 |
14 | aa3d460 |
15 | 71683e3 |
hex | 4d14c2c |
80825388 has 48 divisors (see below), whose sum is σ = 216115200. Its totient is φ = 23030784.
The previous prime is 80825377. The next prime is 80825389. The reversal of 80825388 is 88352808.
It is a Harshad number since it is a multiple of its sum of digits (42).
It is not an unprimeable number, because it can be changed into a prime (80825389) 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, 36645 + ... + 38787.
It is an arithmetic number, because the mean of its divisors is an integer number (4502400).
Almost surely, 280825388 is an apocalyptic number.
It is an amenable number.
80825388 is an abundant number, since it is smaller than the sum of its proper divisors (135289812).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
80825388 is a wasteful number, since it uses less digits than its factorization.
80825388 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2606 (or 2604 counting only the distinct ones).
The product of its (nonzero) digits is 122880, while the sum is 42.
The square root of 80825388 is about 8990.2940997500. The cubic root of 80825388 is about 432.3637411430.
The spelling of 80825388 in words is "eighty million, eight hundred twenty-five thousand, three hundred eighty-eight".
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