Base | Representation |
---|---|
bin | 11010100101101… |
… | …01110111010111 |
3 | 120112200202112000 |
4 | 31102311313113 |
5 | 424044334111 |
6 | 34044330343 |
7 | 5345556141 |
oct | 1522656727 |
9 | 515622460 |
10 | 223043031 |
11 | 1049a1592 |
12 | 628439b3 |
13 | 37294833 |
14 | 2189dc91 |
15 | 148abc56 |
hex | d4b5dd7 |
223043031 has 16 divisors (see below), whose sum is σ = 341829600. Its totient is φ = 143567424.
The previous prime is 223043003. The next prime is 223043057. The reversal of 223043031 is 130340322.
223043031 is a `hidden beast` number, since 2 + 230 + 430 + 3 + 1 = 666.
It is not a de Polignac number, because 223043031 - 25 = 223042999 is a prime.
It is a super-2 number, since 2×2230430312 = 99496387355333922, which contains 22 as substring.
It is a junction number, because it is equal to n+sod(n) for n = 223042995 and 223043013.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (223043081) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 141646 + ... + 143211.
It is an arithmetic number, because the mean of its divisors is an integer number (21364350).
Almost surely, 2223043031 is an apocalyptic number.
223043031 is a deficient number, since it is larger than the sum of its proper divisors (118786569).
223043031 is a wasteful number, since it uses less digits than its factorization.
223043031 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 284895 (or 284889 counting only the distinct ones).
The product of its (nonzero) digits is 432, while the sum is 18.
The square root of 223043031 is about 14934.6252380165. The cubic root of 223043031 is about 606.4517022409.
Adding to 223043031 its reverse (130340322), we get a palindrome (353383353).
The spelling of 223043031 in words is "two hundred twenty-three million, forty-three thousand, thirty-one".
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