Base | Representation |
---|---|
bin | 1001100100101… |
… | …01110100001011 |
3 | 12121002221022210 |
4 | 10302111310023 |
5 | 131024233134 |
6 | 11545120203 |
7 | 1663404405 |
oct | 462256413 |
9 | 177087283 |
10 | 80305419 |
11 | 4136a717 |
12 | 22a89063 |
13 | 138393cc |
14 | a945b75 |
15 | 70b42e9 |
hex | 4c95d0b |
80305419 has 8 divisors (see below), whose sum is σ = 112709440. Its totient is φ = 50719176.
The previous prime is 80305391. The next prime is 80305447. The reversal of 80305419 is 91450308.
It is an interprime number because it is at equal distance from previous prime (80305391) and next prime (80305447).
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 80305419 - 25 = 80305387 is a prime.
It is a super-2 number, since 2×803054192 = 12897920641531122, which contains 22 as substring.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (80305919) 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 in 7 ways as a sum of consecutive naturals, for example, 704377 + ... + 704490.
It is an arithmetic number, because the mean of its divisors is an integer number (14088680).
Almost surely, 280305419 is an apocalyptic number.
80305419 is a deficient number, since it is larger than the sum of its proper divisors (32404021).
80305419 is a wasteful number, since it uses less digits than its factorization.
80305419 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1408889.
The product of its (nonzero) digits is 4320, while the sum is 30.
The square root of 80305419 is about 8961.3290866924. The cubic root of 80305419 is about 431.4345794199.
The spelling of 80305419 in words is "eighty million, three hundred five thousand, four hundred nineteen".
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