Base | Representation |
---|---|
bin | 1010000001000… |
… | …1100101101101 |
3 | 2221001120212021 |
4 | 2200101211231 |
5 | 41223440320 |
6 | 4100310141 |
7 | 1020056650 |
oct | 240214555 |
9 | 87046767 |
10 | 42015085 |
11 | 21797612 |
12 | 120a2351 |
13 | 8920ac8 |
14 | 5819897 |
15 | 3a4ddaa |
hex | 281196d |
42015085 has 16 divisors (see below), whose sum is σ = 58962816. Its totient is φ = 28139328.
The previous prime is 42015053. The next prime is 42015101. The reversal of 42015085 is 58051024.
It is not a de Polignac number, because 42015085 - 25 = 42015053 is a prime.
It is a Duffinian number.
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 15 ways as a sum of consecutive naturals, for example, 12454 + ... + 15463.
It is an arithmetic number, because the mean of its divisors is an integer number (3685176).
Almost surely, 242015085 is an apocalyptic number.
It is an amenable number.
42015085 is a deficient number, since it is larger than the sum of its proper divisors (16947731).
42015085 is a wasteful number, since it uses less digits than its factorization.
42015085 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 27972.
The product of its (nonzero) digits is 1600, while the sum is 25.
The square root of 42015085 is about 6481.9044269412. The cubic root of 42015085 is about 347.6442752708.
The spelling of 42015085 in words is "forty-two million, fifteen thousand, eighty-five".
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