Base | Representation |
---|---|
bin | 100101100010… |
… | …1001011110101 |
3 | 1101000221200100 |
4 | 1023011023311 |
5 | 20014311122 |
6 | 1541504313 |
7 | 326203014 |
oct | 113051365 |
9 | 41027610 |
10 | 19682037 |
11 | 10123451 |
12 | 6712099 |
13 | 410179b |
14 | 2884a7b |
15 | 1adbaac |
hex | 12c52f5 |
19682037 has 12 divisors (see below), whose sum is σ = 28596204. Its totient is φ = 13044480.
The previous prime is 19682023. The next prime is 19682053. The reversal of 19682037 is 73028691.
It can be written as a sum of positive squares in 2 ways, for example, as 7001316 + 12680721 = 2646^2 + 3561^2 .
It is not a de Polignac number, because 19682037 - 216 = 19616501 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 19681992 and 19682010.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (19682017) 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 11 ways as a sum of consecutive naturals, for example, 4764 + ... + 7877.
It is an arithmetic number, because the mean of its divisors is an integer number (2383017).
Almost surely, 219682037 is an apocalyptic number.
It is an amenable number.
19682037 is a deficient number, since it is larger than the sum of its proper divisors (8914167).
19682037 is a wasteful number, since it uses less digits than its factorization.
19682037 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 12820 (or 12817 counting only the distinct ones).
The product of its (nonzero) digits is 18144, while the sum is 36.
The square root of 19682037 is about 4436.4441842539. Note that the first 3 decimals coincide. The cubic root of 19682037 is about 269.9955966360.
It can be divided in two parts, 1968 and 2037, that added together give a triangular number (4005 = T89).
The spelling of 19682037 in words is "nineteen million, six hundred eighty-two thousand, thirty-seven".
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