Base | Representation |
---|---|
bin | 100100011001… |
… | …0010010011101 |
3 | 1022220101022121 |
4 | 1020302102131 |
5 | 14341032344 |
6 | 1520542541 |
7 | 321115561 |
oct | 110622235 |
9 | 38811277 |
10 | 19080349 |
11 | a852392 |
12 | 6481a51 |
13 | 3c50962 |
14 | 27696a1 |
15 | 1a1d684 |
hex | 123249d |
19080349 has 2 divisors, whose sum is σ = 19080350. Its totient is φ = 19080348.
The previous prime is 19080323. The next prime is 19080359. The reversal of 19080349 is 94308091.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 15657849 + 3422500 = 3957^2 + 1850^2 .
It is an emirp because it is prime and its reverse (94308091) is a distict prime.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-19080349 is a prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (19080359) 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 as a sum of consecutive naturals, namely, 9540174 + 9540175.
It is an arithmetic number, because the mean of its divisors is an integer number (9540175).
Almost surely, 219080349 is an apocalyptic number.
It is an amenable number.
19080349 is a deficient number, since it is larger than the sum of its proper divisors (1).
19080349 is an equidigital number, since it uses as much as digits as its factorization.
19080349 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 7776, while the sum is 34.
The square root of 19080349 is about 4368.1058824163. The cubic root of 19080349 is about 267.2157822096.
The spelling of 19080349 in words is "nineteen million, eighty thousand, three hundred forty-nine".
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