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304470 = 232517199
BaseRepresentation
bin1001010010101010110
3120110122200
41022111112
534220340
610305330
72405445
oct1122526
9513580
10304470
11198831
12128246
13a877a
147cd5c
1560330
hex4a556

304470 has 48 divisors (see below), whose sum is σ = 842400. Its totient is φ = 76032.

The previous prime is 304459. The next prime is 304477. The reversal of 304470 is 74403.

304470 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (304477) by changing a digit.

304470 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1431 + ... + 1629.

It is an arithmetic number, because the mean of its divisors is an integer number (17550).

2304470 is an apocalyptic number.

304470 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 304470, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (421200).

304470 is an abundant number, since it is smaller than the sum of its proper divisors (537930).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

304470 is a wasteful number, since it uses less digits than its factorization.

304470 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 229 (or 226 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 18.

The square root of 304470 is about 551.7880027692. The cubic root of 304470 is about 67.2741422329.

Adding to 304470 its reverse (74403), we get a palindrome (378873).

The spelling of 304470 in words is "three hundred four thousand, four hundred seventy", and thus it is an iban number.

Divisors: 1 2 3 5 6 9 10 15 17 18 30 34 45 51 85 90 102 153 170 199 255 306 398 510 597 765 995 1194 1530 1791 1990 2985 3383 3582 5970 6766 8955 10149 16915 17910 20298 30447 33830 50745 60894 101490 152235 304470