Base | Representation |
---|---|
bin | 11010011001011… |
… | …10110000010011 |
3 | 120102200101000010 |
4 | 31030232300103 |
5 | 423142103133 |
6 | 33550130003 |
7 | 5326134465 |
oct | 1514566023 |
9 | 512611003 |
10 | 221441043 |
11 | 103aa7a2a |
12 | 621b0903 |
13 | 36b53605 |
14 | 215a4135 |
15 | 14692263 |
hex | d32ec13 |
221441043 has 8 divisors (see below), whose sum is σ = 295509456. Its totient is φ = 147500000.
The previous prime is 221440981. The next prime is 221441053. The reversal of 221441043 is 340144122.
221441043 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 221441043 - 26 = 221440979 is a prime.
It is a super-2 number, since 2×2214410432 = 98072271049855698, which contains 22 as substring.
It is not an unprimeable number, because it can be changed into a prime (221441053) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27708 + ... + 34793.
It is an arithmetic number, because the mean of its divisors is an integer number (36938682).
Almost surely, 2221441043 is an apocalyptic number.
221441043 is a deficient number, since it is larger than the sum of its proper divisors (74068413).
221441043 is a wasteful number, since it uses less digits than its factorization.
221441043 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 63685.
The product of its (nonzero) digits is 768, while the sum is 21.
The square root of 221441043 is about 14880.8952351665. The cubic root of 221441043 is about 604.9962825626.
Adding to 221441043 its reverse (340144122), we get a palindrome (561585165).
The spelling of 221441043 in words is "two hundred twenty-one million, four hundred forty-one thousand, forty-three".
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