Base | Representation |
---|---|
bin | 1001101000101… |
… | …01111001011000 |
3 | 12122002120222012 |
4 | 10310111321120 |
5 | 131143030130 |
6 | 12004245052 |
7 | 2001021044 |
oct | 464257130 |
9 | 178076865 |
10 | 80830040 |
11 | 41698895 |
12 | 230a0788 |
13 | 13991135 |
14 | aa41024 |
15 | 7169995 |
hex | 4d15e58 |
80830040 has 32 divisors (see below), whose sum is σ = 183546000. Its totient is φ = 32033664.
The previous prime is 80830033. The next prime is 80830081. The reversal of 80830040 is 4003808.
It is a junction number, because it is equal to n+sod(n) for n = 80829988 and 80830015.
It is a congruent number.
It is an unprimeable number.
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 7 ways as a sum of consecutive naturals, for example, 4910 + ... + 13629.
Almost surely, 280830040 is an apocalyptic number.
It is an amenable number.
80830040 is an abundant number, since it is smaller than the sum of its proper divisors (102715960).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
80830040 is a wasteful number, since it uses less digits than its factorization.
80830040 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 18659 (or 18655 counting only the distinct ones).
The product of its (nonzero) digits is 768, while the sum is 23.
The square root of 80830040 is about 8990.5528194878. The cubic root of 80830040 is about 432.3720360512.
Adding to 80830040 its reverse (4003808), we get a palindrome (84833848).
The spelling of 80830040 in words is "eighty million, eight hundred thirty thousand, forty".
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