Base | Representation |
---|---|
bin | 100100011100… |
… | …1001111101001 |
3 | 1022221211101212 |
4 | 1020321033221 |
5 | 14342440331 |
6 | 1521322505 |
7 | 321264623 |
oct | 110711751 |
9 | 38854355 |
10 | 19108841 |
11 | a871834 |
12 | 6496435 |
13 | 3c6090b |
14 | 2775c13 |
15 | 1a26d2b |
hex | 12393e9 |
19108841 has 4 divisors (see below), whose sum is σ = 19339152. Its totient is φ = 18878532.
The previous prime is 19108823. The next prime is 19108877. The reversal of 19108841 is 14880191.
It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.
It is a cyclic number.
It is not a de Polignac number, because 19108841 - 26 = 19108777 is a prime.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 19108798 and 19108807.
It is not an unprimeable number, because it can be changed into a prime (19108811) 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 3 ways as a sum of consecutive naturals, for example, 115031 + ... + 115196.
It is an arithmetic number, because the mean of its divisors is an integer number (4834788).
Almost surely, 219108841 is an apocalyptic number.
It is an amenable number.
19108841 is a deficient number, since it is larger than the sum of its proper divisors (230311).
19108841 is an equidigital number, since it uses as much as digits as its factorization.
19108841 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 230310.
The product of its (nonzero) digits is 2304, while the sum is 32.
The square root of 19108841 is about 4371.3660336330. The cubic root of 19108841 is about 267.3487239698.
The spelling of 19108841 in words is "nineteen million, one hundred eight thousand, eight hundred forty-one".
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