Base | Representation |
---|---|
bin | 11010101011100… |
… | …00110001110111 |
3 | 120121010122201120 |
4 | 31111300301313 |
5 | 424243334011 |
6 | 34112555023 |
7 | 5355225204 |
oct | 1525606167 |
9 | 517118646 |
10 | 223808631 |
11 | 105374812 |
12 | 62b52a73 |
13 | 374a2157 |
14 | 21a1ccab |
15 | 149ada06 |
hex | d570c77 |
223808631 has 8 divisors (see below), whose sum is σ = 308701680. Its totient is φ = 144060672.
The previous prime is 223808603. The next prime is 223808633. The reversal of 223808631 is 136808322.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 223808631 - 27 = 223808503 is a prime.
It is a super-2 number, since 2×2238086312 = 100180606620188322, which contains 22 as substring.
It is a junction number, because it is equal to n+sod(n) for n = 223808592 and 223808601.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (223808633) 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, 1286170 + ... + 1286343.
It is an arithmetic number, because the mean of its divisors is an integer number (38587710).
Almost surely, 2223808631 is an apocalyptic number.
223808631 is a deficient number, since it is larger than the sum of its proper divisors (84893049).
223808631 is a wasteful number, since it uses less digits than its factorization.
223808631 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2572545.
The product of its (nonzero) digits is 13824, while the sum is 33.
The square root of 223808631 is about 14960.2349914699. The cubic root of 223808631 is about 607.1447959945.
The spelling of 223808631 in words is "two hundred twenty-three million, eight hundred eight thousand, six hundred thirty-one".
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