Base | Representation |
---|---|
bin | 11001100001100… |
… | …01011111011101 |
3 | 112220220000202021 |
4 | 30300301133131 |
5 | 414303042341 |
6 | 33125100141 |
7 | 5206631611 |
oct | 1460613735 |
9 | 486800667 |
10 | 214112221 |
11 | aa951754 |
12 | 5b857651 |
13 | 3548882b |
14 | 20617341 |
15 | 13be59d1 |
hex | cc317dd |
214112221 has 12 divisors (see below), whose sum is σ = 225659392. Its totient is φ = 203126616.
The previous prime is 214112219. The next prime is 214112233. The reversal of 214112221 is 122211412.
It is not a de Polignac number, because 214112221 - 21 = 214112219 is a prime.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 214112195 and 214112204.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (214112201) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 65590 + ... + 68776.
Almost surely, 2214112221 is an apocalyptic number.
It is an amenable number.
214112221 is a deficient number, since it is larger than the sum of its proper divisors (11547171).
214112221 is a wasteful number, since it uses less digits than its factorization.
214112221 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 3360 (or 3337 counting only the distinct ones).
The product of its digits is 64, while the sum is 16.
The square root of 214112221 is about 14632.5739704264. The cubic root of 214112221 is about 598.2469394344.
Adding to 214112221 its reverse (122211412), we get a palindrome (336323633).
It can be divided in two parts, 21411 and 2221, that added together give a palindrome (23632).
The spelling of 214112221 in words is "two hundred fourteen million, one hundred twelve thousand, two hundred twenty-one".
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