Base | Representation |
---|---|
bin | 1010000010100… |
… | …0000011100001 |
3 | 2221020021002102 |
4 | 2200220003201 |
5 | 41234411410 |
6 | 4102300145 |
7 | 1020622145 |
oct | 240500341 |
9 | 87207072 |
10 | 42107105 |
11 | 2184a767 |
12 | 12127655 |
13 | 8953961 |
14 | 5841225 |
15 | 3a6b2a5 |
hex | 28280e1 |
42107105 has 16 divisors (see below), whose sum is σ = 52086144. Its totient is φ = 32659200.
The previous prime is 42107029. The next prime is 42107111. The reversal of 42107105 is 50170124.
It is not a de Polignac number, because 42107105 - 28 = 42106849 is a prime.
It is a Duffinian number.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31817 + ... + 33113.
It is an arithmetic number, because the mean of its divisors is an integer number (3255384).
Almost surely, 242107105 is an apocalyptic number.
It is an amenable number.
42107105 is a deficient number, since it is larger than the sum of its proper divisors (9979039).
42107105 is a wasteful number, since it uses less digits than its factorization.
42107105 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1496.
The product of its (nonzero) digits is 280, while the sum is 20.
The square root of 42107105 is about 6488.9987671443. The cubic root of 42107105 is about 347.8978897361.
Adding to 42107105 its reverse (50170124), we get a palindrome (92277229).
The spelling of 42107105 in words is "forty-two million, one hundred seven thousand, one hundred five".
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