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304146 = 23261277
BaseRepresentation
bin1001010010000010010
3120110012200
41022100102
534213041
610304030
72404503
oct1122022
9513180
10304146
11198567
12128016
13a858b
147cbaa
15601b6
hex4a412

304146 has 24 divisors (see below), whose sum is σ = 672204. Its totient is φ = 99360.

The previous prime is 304127. The next prime is 304151. The reversal of 304146 is 641403.

It can be written as a sum of positive squares in 2 ways, for example, as 239121 + 65025 = 489^2 + 255^2 .

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

It is an Ulam number.

It is an unprimeable number.

304146 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 11 ways as a sum of consecutive naturals, for example, 960 + ... + 1236.

2304146 is an apocalyptic number.

304146 is an abundant number, since it is smaller than the sum of its proper divisors (368058).

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

304146 is a wasteful number, since it uses less digits than its factorization.

304146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 346 (or 343 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 304146 is about 551.4943336064. The cubic root of 304146 is about 67.2502706327.

Adding to 304146 its reverse (641403), we get a palindrome (945549).

The spelling of 304146 in words is "three hundred four thousand, one hundred forty-six".

Divisors: 1 2 3 6 9 18 61 122 183 277 366 549 554 831 1098 1662 2493 4986 16897 33794 50691 101382 152073 304146