Base | Representation |
---|---|
bin | 1001100011110… |
… | …01110110110111 |
3 | 12120220010020110 |
4 | 10301321312313 |
5 | 131012102103 |
6 | 11542434103 |
7 | 1662416502 |
oct | 461716667 |
9 | 176803213 |
10 | 80190903 |
11 | 412a1681 |
12 | 22a32933 |
13 | 137c9250 |
14 | a916139 |
15 | 7090403 |
hex | 4c79db7 |
80190903 has 16 divisors (see below), whose sum is σ = 120153600. Its totient is φ = 47202144.
The previous prime is 80190899. The next prime is 80190923. The reversal of 80190903 is 30909108.
It is a happy number.
It is not a de Polignac number, because 80190903 - 22 = 80190899 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (80190923) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43803 + ... + 45596.
It is an arithmetic number, because the mean of its divisors is an integer number (7509600).
Almost surely, 280190903 is an apocalyptic number.
80190903 is a deficient number, since it is larger than the sum of its proper divisors (39962697).
80190903 is a wasteful number, since it uses less digits than its factorization.
80190903 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 89438.
The product of its (nonzero) digits is 1944, while the sum is 30.
The square root of 80190903 is about 8954.9373532147. The cubic root of 80190903 is about 431.2294057798.
The spelling of 80190903 in words is "eighty million, one hundred ninety thousand, nine hundred three".
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