Base | Representation |
---|---|
bin | 11010100111001… |
… | …10111111000111 |
3 | 120120001222111212 |
4 | 31103212333013 |
5 | 424122303411 |
6 | 34052522035 |
7 | 5350354550 |
oct | 1523467707 |
9 | 516058455 |
10 | 223244231 |
11 | 105019771 |
12 | 6292031b |
13 | 373352a2 |
14 | 21913327 |
15 | 148eb68b |
hex | d4e6fc7 |
223244231 has 8 divisors (see below), whose sum is σ = 255720960. Its totient is φ = 190913688.
The previous prime is 223244227. The next prime is 223244251. The reversal of 223244231 is 132442322.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 223244231 - 22 = 223244227 is a prime.
It is a super-3 number, since 3×2232442313 (a number of 26 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 223244197 and 223244206.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (223244251) 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, 33251 + ... + 39396.
It is an arithmetic number, because the mean of its divisors is an integer number (31965120).
Almost surely, 2223244231 is an apocalyptic number.
223244231 is a deficient number, since it is larger than the sum of its proper divisors (32476729).
223244231 is an equidigital number, since it uses as much as digits as its factorization.
223244231 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 73093.
The product of its digits is 2304, while the sum is 23.
The square root of 223244231 is about 14941.3597440126. The cubic root of 223244231 is about 606.6340010119.
Adding to 223244231 its reverse (132442322), we get a palindrome (355686553).
The spelling of 223244231 in words is "two hundred twenty-three million, two hundred forty-four thousand, two hundred thirty-one".
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