Base | Representation |
---|---|
bin | 100100001111… |
… | …0101100001111 |
3 | 1022202022012122 |
4 | 1020132230033 |
5 | 14331000304 |
6 | 1515123155 |
7 | 320332550 |
oct | 110365417 |
9 | 38668178 |
10 | 19000079 |
11 | a7a804a |
12 | 64434bb |
13 | 3c23267 |
14 | 2748327 |
15 | 1a049be |
hex | 121eb0f |
19000079 has 8 divisors (see below), whose sum is σ = 22176768. Its totient is φ = 15939000.
The previous prime is 19000073. The next prime is 19000087. The reversal of 19000079 is 97000091.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 19000079 - 212 = 18995983 is a prime.
It is a super-2 number, since 2×190000792 = 722006004012482, which contains 22 as substring.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (19000073) 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, 28547 + ... + 29204.
It is an arithmetic number, because the mean of its divisors is an integer number (2772096).
Almost surely, 219000079 is an apocalyptic number.
19000079 is a deficient number, since it is larger than the sum of its proper divisors (3176689).
19000079 is an equidigital number, since it uses as much as digits as its factorization.
19000079 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 57805.
The product of its (nonzero) digits is 567, while the sum is 26.
The square root of 19000079 is about 4358.9080054527. The cubic root of 19000079 is about 266.8405347028.
The spelling of 19000079 in words is "nineteen million, seventy-nine", and thus it is an aban number and an uban number.
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