Base | Representation |
---|---|
bin | 1010001010110… |
… | …1010010000101 |
3 | 2222020222122112 |
4 | 2202231102011 |
5 | 41404342210 |
6 | 4122110405 |
7 | 1025354126 |
oct | 242552205 |
9 | 88228575 |
10 | 42652805 |
11 | 22092758 |
12 | 1234b405 |
13 | 8ab5160 |
14 | 594404d |
15 | 3b27d05 |
hex | 28ad485 |
42652805 has 32 divisors (see below), whose sum is σ = 57062880. Its totient is φ = 30412800.
The previous prime is 42652789. The next prime is 42652817. The reversal of 42652805 is 50825624.
It can be written as a sum of positive squares in 16 ways, for example, as 9728161 + 32924644 = 3119^2 + 5738^2 .
It is not a de Polignac number, because 42652805 - 24 = 42652789 is a prime.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 422255 + ... + 422355.
It is an arithmetic number, because the mean of its divisors is an integer number (1783215).
Almost surely, 242652805 is an apocalyptic number.
It is an amenable number.
42652805 is a deficient number, since it is larger than the sum of its proper divisors (14410075).
42652805 is a wasteful number, since it uses less digits than its factorization.
42652805 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 281.
The product of its (nonzero) digits is 19200, while the sum is 32.
The square root of 42652805 is about 6530.9114984051. The cubic root of 42652805 is about 349.3943402920.
The spelling of 42652805 in words is "forty-two million, six hundred fifty-two thousand, eight hundred five".
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