Base | Representation |
---|---|
bin | 10010000001100… |
… | …101001010000111 |
3 | 210002000201121201 |
4 | 102001211022013 |
5 | 1104403413411 |
6 | 50001323331 |
7 | 10331251663 |
oct | 2201451207 |
9 | 702021551 |
10 | 302404231 |
11 | 145776858 |
12 | 85336547 |
13 | 4a86021c |
14 | 2c23b8a3 |
15 | 1b8363c1 |
hex | 12065287 |
302404231 has 4 divisors (see below), whose sum is σ = 302445000. Its totient is φ = 302363464.
The previous prime is 302404229. The next prime is 302404241. The reversal of 302404231 is 132404203.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 132404203 = 2531 ⋅52313.
It is a cyclic number.
It is not a de Polignac number, because 302404231 - 21 = 302404229 is a prime.
It is a super-2 number, since 2×3024042312 = 182896637853402722, which contains 22 as substring.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 302404199 and 302404208.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (302404241) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5761 + ... + 25258.
It is an arithmetic number, because the mean of its divisors is an integer number (75611250).
Almost surely, 2302404231 is an apocalyptic number.
302404231 is a deficient number, since it is larger than the sum of its proper divisors (40769).
302404231 is an equidigital number, since it uses as much as digits as its factorization.
302404231 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 40768.
The product of its (nonzero) digits is 576, while the sum is 19.
The square root of 302404231 is about 17389.7737478094. The cubic root of 302404231 is about 671.2164956396.
Adding to 302404231 its reverse (132404203), we get a palindrome (434808434).
The spelling of 302404231 in words is "three hundred two million, four hundred four thousand, two hundred thirty-one".
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