Base | Representation |
---|---|
bin | 1010000010100… |
… | …1000101001001 |
3 | 2221020110211222 |
4 | 2200221011021 |
5 | 41240030210 |
6 | 4102331425 |
7 | 1020640325 |
oct | 240510511 |
9 | 87213758 |
10 | 42111305 |
11 | 21852935 |
12 | 12129b75 |
13 | 8955842 |
14 | 5842985 |
15 | 3a6c655 |
hex | 2829149 |
42111305 has 8 divisors (see below), whose sum is σ = 51766344. Its totient is φ = 32867200.
The previous prime is 42111287. The next prime is 42111313. The reversal of 42111305 is 50311124.
It can be written as a sum of positive squares in 4 ways, for example, as 2408704 + 39702601 = 1552^2 + 6301^2 .
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 42111305 - 210 = 42110281 is a prime.
It is a Duffinian number.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 102506 + ... + 102915.
It is an arithmetic number, because the mean of its divisors is an integer number (6470793).
Almost surely, 242111305 is an apocalyptic number.
It is an amenable number.
42111305 is a deficient number, since it is larger than the sum of its proper divisors (9655039).
42111305 is a wasteful number, since it uses less digits than its factorization.
42111305 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 205467.
The product of its (nonzero) digits is 120, while the sum is 17.
The square root of 42111305 is about 6489.3223837316. The cubic root of 42111305 is about 347.9094564504.
Adding to 42111305 its reverse (50311124), we get a palindrome (92422429).
The spelling of 42111305 in words is "forty-two million, one hundred eleven thousand, three hundred five".
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