Base | Representation |
---|---|
bin | 100101011100… |
… | …0111110101010 |
3 | 1100221102002200 |
4 | 1022320332222 |
5 | 20011211132 |
6 | 1540441030 |
7 | 325604163 |
oct | 112707652 |
9 | 40842080 |
10 | 19632042 |
11 | 10099931 |
12 | 66a9176 |
13 | 40b4ac1 |
14 | 287076a |
15 | 1acbd7c |
hex | 12b8faa |
19632042 has 24 divisors (see below), whose sum is σ = 45038916. Its totient is φ = 6158976.
The previous prime is 19632031. The next prime is 19632049. The reversal of 19632042 is 24023691.
It can be written as a sum of positive squares in 2 ways, for example, as 16573041 + 3059001 = 4071^2 + 1749^2 .
It is a junction number, because it is equal to n+sod(n) for n = 19631997 and 19632015.
It is not an unprimeable number, because it can be changed into a prime (19632049) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 31773 + ... + 32384.
Almost surely, 219632042 is an apocalyptic number.
19632042 is an abundant number, since it is smaller than the sum of its proper divisors (25406874).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
19632042 is a wasteful number, since it uses less digits than its factorization.
19632042 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 64182 (or 64179 counting only the distinct ones).
The product of its (nonzero) digits is 2592, while the sum is 27.
The square root of 19632042 is about 4430.8060214819. The cubic root of 19632042 is about 269.7667945176.
It can be divided in two parts, 1963 and 2042, that added together give a triangular number (4005 = T89).
The spelling of 19632042 in words is "nineteen million, six hundred thirty-two thousand, forty-two".
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