Base | Representation |
---|---|
bin | 11001101010110… |
… | …11100010110010 |
3 | 120000012001101212 |
4 | 30311123202302 |
5 | 420111124132 |
6 | 33211200122 |
7 | 5223205061 |
oct | 1465334262 |
9 | 500161355 |
10 | 215333042 |
11 | 1006059a1 |
12 | 60146042 |
13 | 357c5402 |
14 | 208541d8 |
15 | 13d875b2 |
hex | cd5b8b2 |
215333042 has 32 divisors (see below), whose sum is σ = 349574400. Its totient is φ = 99169488.
The previous prime is 215333039. The next prime is 215333047. The reversal of 215333042 is 240333512.
It is a junction number, because it is equal to n+sod(n) for n = 215332999 and 215333017.
It is not an unprimeable number, because it can be changed into a prime (215333047) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 210809 + ... + 211827.
It is an arithmetic number, because the mean of its divisors is an integer number (10924200).
Almost surely, 2215333042 is an apocalyptic number.
215333042 is a deficient number, since it is larger than the sum of its proper divisors (134241358).
215333042 is a wasteful number, since it uses less digits than its factorization.
215333042 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1190.
The product of its (nonzero) digits is 2160, while the sum is 23.
The square root of 215333042 is about 14674.2305420080. The cubic root of 215333042 is about 599.3818095827.
Adding to 215333042 its reverse (240333512), we get a palindrome (455666554).
The spelling of 215333042 in words is "two hundred fifteen million, three hundred thirty-three thousand, forty-two".
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