Base | Representation |
---|---|
bin | 10010001000001… |
… | …101111010011111 |
3 | 210012022010011202 |
4 | 102020031322133 |
5 | 1110330102111 |
6 | 50102510115 |
7 | 10352116202 |
oct | 2210157237 |
9 | 705263152 |
10 | 304144031 |
11 | 146754a04 |
12 | 85a3533b |
13 | 4b01c0a9 |
14 | 2c571939 |
15 | 1ba7bb3b |
hex | 1220de9f |
304144031 has 8 divisors (see below), whose sum is σ = 311505744. Its totient is φ = 296795520.
The previous prime is 304143989. The next prime is 304144063. The reversal of 304144031 is 130441403.
It is a happy number.
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 304144031 - 218 = 303881887 is a prime.
It is a super-2 number, since 2×3041440312 = 185007183185857922, 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 = 304143994 and 304144012.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (304144081) 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, 55925 + ... + 61121.
It is an arithmetic number, because the mean of its divisors is an integer number (38938218).
Almost surely, 2304144031 is an apocalyptic number.
304144031 is a deficient number, since it is larger than the sum of its proper divisors (7361713).
304144031 is a wasteful number, since it uses less digits than its factorization.
304144031 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 6601.
The product of its (nonzero) digits is 576, while the sum is 20.
The square root of 304144031 is about 17439.7256572459. The cubic root of 304144031 is about 672.5012550936.
Adding to 304144031 its reverse (130441403), we get a palindrome (434585434).
The spelling of 304144031 in words is "three hundred four million, one hundred forty-four thousand, thirty-one".
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