Base | Representation |
---|---|
bin | 100100001111… |
… | …0110010010101 |
3 | 1022202022202002 |
4 | 1020132302111 |
5 | 14331003334 |
6 | 1515125045 |
7 | 320333645 |
oct | 110366225 |
9 | 38668662 |
10 | 19000469 |
11 | a7a8374 |
12 | 6443785 |
13 | 3c234a7 |
14 | 2748525 |
15 | 1a04b7e |
hex | 121ec95 |
19000469 has 2 divisors, whose sum is σ = 19000470. Its totient is φ = 19000468.
The previous prime is 19000411. The next prime is 19000477. The reversal of 19000469 is 96400091.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 14326225 + 4674244 = 3785^2 + 2162^2 .
It is a cyclic number.
It is not a de Polignac number, because 19000469 - 28 = 19000213 is a prime.
It is a super-2 number, since 2×190004692 = 722035644439922, which contains 22 as substring.
It is a Chen prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (19000409) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9500234 + 9500235.
It is an arithmetic number, because the mean of its divisors is an integer number (9500235).
Almost surely, 219000469 is an apocalyptic number.
It is an amenable number.
19000469 is a deficient number, since it is larger than the sum of its proper divisors (1).
19000469 is an equidigital number, since it uses as much as digits as its factorization.
19000469 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 1944, while the sum is 29.
The square root of 19000469 is about 4358.9527411983. The cubic root of 19000469 is about 266.8423604337.
The spelling of 19000469 in words is "nineteen million, four hundred sixty-nine", and thus it is an aban number.
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