Base | Representation |
---|---|
bin | 100100101000… |
… | …1011101110001 |
3 | 1100010212111020 |
4 | 1021101131301 |
5 | 14404124144 |
6 | 1523410053 |
7 | 322160100 |
oct | 111213561 |
9 | 40125436 |
10 | 19208049 |
11 | a92a323 |
12 | 6523929 |
13 | 3c96b13 |
14 | 27a0037 |
15 | 1a46419 |
hex | 1251771 |
19208049 has 24 divisors (see below), whose sum is σ = 30528288. Its totient is φ = 10704960.
The previous prime is 19208047. The next prime is 19208053. The reversal of 19208049 is 94080291.
It is not a de Polignac number, because 19208049 - 21 = 19208047 is a prime.
It is not an unprimeable number, because it can be changed into a prime (19208047) by changing a digit.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4434 + ... + 7620.
It is an arithmetic number, because the mean of its divisors is an integer number (1272012).
Almost surely, 219208049 is an apocalyptic number.
It is an amenable number.
19208049 is a deficient number, since it is larger than the sum of its proper divisors (11320239).
19208049 is a wasteful number, since it uses less digits than its factorization.
19208049 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 3245 (or 3238 counting only the distinct ones).
The product of its (nonzero) digits is 5184, while the sum is 33.
The square root of 19208049 is about 4382.6988260660. The cubic root of 19208049 is about 267.8105933178.
The spelling of 19208049 in words is "nineteen million, two hundred eight thousand, forty-nine".
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