Base | Representation |
---|---|
bin | 1001100101010… |
… | …00000001001111 |
3 | 12121020201121102 |
4 | 10302220001033 |
5 | 131034124413 |
6 | 11550453315 |
7 | 1664134655 |
oct | 462500117 |
9 | 177221542 |
10 | 80379983 |
11 | 41410742 |
12 | 22b0423b |
13 | 13864328 |
14 | a964dd5 |
15 | 70cb458 |
hex | 4ca804f |
80379983 has 4 divisors (see below), whose sum is σ = 80424168. Its totient is φ = 80335800.
The previous prime is 80379977. The next prime is 80380037. The reversal of 80379983 is 38997308.
It is a semiprime because it is the product of two primes.
It is a cyclic number.
It is not a de Polignac number, because 80379983 - 210 = 80378959 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (80379913) 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 3 ways as a sum of consecutive naturals, for example, 19241 + ... + 23042.
It is an arithmetic number, because the mean of its divisors is an integer number (20106042).
Almost surely, 280379983 is an apocalyptic number.
80379983 is a deficient number, since it is larger than the sum of its proper divisors (44185).
80379983 is a wasteful number, since it uses less digits than its factorization.
80379983 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 44184.
The product of its (nonzero) digits is 326592, while the sum is 47.
The square root of 80379983 is about 8965.4884417972. The cubic root of 80379983 is about 431.5680678653.
The spelling of 80379983 in words is "eighty million, three hundred seventy-nine thousand, nine hundred eighty-three".
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