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304940 = 22579193
BaseRepresentation
bin1001010011100101100
3120111022002
41022130230
534224230
610311432
72410016
oct1123454
9514262
10304940
11199119
12128578
13a8a4c
147d1b6
1560545
hex4a72c

304940 has 24 divisors (see below), whose sum is σ = 651840. Its totient is φ = 119808.

The previous prime is 304937. The next prime is 304943. The reversal of 304940 is 49403.

304940 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (304937) and next prime (304943).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is not an unprimeable number, because it can be changed into a prime (304943) 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, 1484 + ... + 1676.

It is an arithmetic number, because the mean of its divisors is an integer number (27160).

2304940 is an apocalyptic number.

It is an amenable number.

304940 is an abundant number, since it is smaller than the sum of its proper divisors (346900).

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

304940 is a wasteful number, since it uses less digits than its factorization.

304940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 281 (or 279 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 304940 is about 552.2137267399. The cubic root of 304940 is about 67.3087407058.

The spelling of 304940 in words is "three hundred four thousand, nine hundred forty".

Divisors: 1 2 4 5 10 20 79 158 193 316 386 395 772 790 965 1580 1930 3860 15247 30494 60988 76235 152470 304940