Base | Representation |
---|---|
bin | 1001100010101… |
… | …11010100001011 |
3 | 12120121221011022 |
4 | 10301113110023 |
5 | 130443040134 |
6 | 11535423055 |
7 | 1661260142 |
oct | 461272413 |
9 | 176557138 |
10 | 80049419 |
11 | 4120534a |
12 | 22984a8b |
13 | 13779a28 |
14 | a8ba759 |
15 | 706352e |
hex | 4c5750b |
80049419 has 2 divisors, whose sum is σ = 80049420. Its totient is φ = 80049418.
The previous prime is 80049401. The next prime is 80049421. The reversal of 80049419 is 91494008.
It is a strong prime.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-80049419 is a prime.
It is a super-2 number, since 2×800494192 = 12815818964475122, which contains 22 as substring.
It is a Sophie Germain prime.
Together with 80049421, it forms a pair of twin primes.
It is a Chen prime.
It is not a weakly prime, because it can be changed into another prime (80049449) by changing a digit.
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 as a sum of consecutive naturals, namely, 40024709 + 40024710.
It is an arithmetic number, because the mean of its divisors is an integer number (40024710).
Almost surely, 280049419 is an apocalyptic number.
80049419 is a deficient number, since it is larger than the sum of its proper divisors (1).
80049419 is an equidigital number, since it uses as much as digits as its factorization.
80049419 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 10368, while the sum is 35.
The square root of 80049419 is about 8947.0340895740. The cubic root of 80049419 is about 430.9756447497.
The spelling of 80049419 in words is "eighty million, forty-nine thousand, four hundred nineteen".
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