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304423 = 7157277
BaseRepresentation
bin1001010010100100111
3120110120221
41022110213
534220143
610305211
72405350
oct1122447
9513527
10304423
11198799
12128207
13a8742
147cd27
15602ed
hex4a527

304423 has 8 divisors (see below), whose sum is σ = 351392. Its totient is φ = 258336.

The previous prime is 304417. The next prime is 304429. The reversal of 304423 is 324403.

It is an interprime number because it is at equal distance from previous prime (304417) and next prime (304429).

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 304423 - 25 = 304391 is a prime.

It is a Duffinian number.

It is a plaindrome in base 8.

It is a nialpdrome in base 13.

It is a junction number, because it is equal to n+sod(n) for n = 304397 and 304406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (304429) 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, 961 + ... + 1237.

It is an arithmetic number, because the mean of its divisors is an integer number (43924).

2304423 is an apocalyptic number.

304423 is a deficient number, since it is larger than the sum of its proper divisors (46969).

304423 is a wasteful number, since it uses less digits than its factorization.

304423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 441.

The product of its (nonzero) digits is 288, while the sum is 16.

The square root of 304423 is about 551.7454123053. The cubic root of 304423 is about 67.2706804278.

Adding to 304423 its reverse (324403), we get a palindrome (628826).

It can be divided in two parts, 304 and 423, that added together give a palindrome (727).

The spelling of 304423 in words is "three hundred four thousand, four hundred twenty-three", and thus it is an iban number.

Divisors: 1 7 157 277 1099 1939 43489 304423