Base | Representation |
---|---|
bin | 11010010110011… |
… | …01001100000101 |
3 | 120101221001211000 |
4 | 31023031030011 |
5 | 423041311123 |
6 | 33533403513 |
7 | 5322551415 |
oct | 1513151405 |
9 | 511831730 |
10 | 221041413 |
11 | 10385475a |
12 | 62039599 |
13 | 36a43748 |
14 | 214dc645 |
15 | 14613b43 |
hex | d2cd305 |
221041413 has 8 divisors (see below), whose sum is σ = 327468800. Its totient is φ = 147360924.
The previous prime is 221041397. The next prime is 221041433. The reversal of 221041413 is 314140122.
221041413 is a `hidden beast` number, since 2 + 210 + 41 + 413 = 666.
It is not a de Polignac number, because 221041413 - 24 = 221041397 is a prime.
It is a super-2 number, since 2×2210414132 = 97718612522073138, which contains 22 as substring.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (221041433) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4093333 + ... + 4093386.
It is an arithmetic number, because the mean of its divisors is an integer number (40933600).
Almost surely, 2221041413 is an apocalyptic number.
It is an amenable number.
221041413 is a deficient number, since it is larger than the sum of its proper divisors (106427387).
221041413 is an equidigital number, since it uses as much as digits as its factorization.
221041413 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 8186728 (or 8186722 counting only the distinct ones).
The product of its (nonzero) digits is 192, while the sum is 18.
The square root of 221041413 is about 14867.4615519933. The cubic root of 221041413 is about 604.6321220483.
Adding to 221041413 its reverse (314140122), we get a palindrome (535181535).
The spelling of 221041413 in words is "two hundred twenty-one million, forty-one thousand, four hundred thirteen".
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