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304020310 = 25119728493
BaseRepresentation
bin10010000111101…
…111101101010110
3210012001211110111
4102013233231112
51110312122220
650100113234
710351062406
oct2207575526
9705054414
10304020310
1114667aa60
128599581a
134aca7999
142c53c806
151ba5515a
hex121efb56

304020310 has 32 divisors (see below), whose sum is σ = 603160992. Its totient is φ = 109409280.

The previous prime is 304020287. The next prime is 304020313. The reversal of 304020310 is 13020403.

It is a super-2 number, since 2×3040203102 = 184856697784992200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (304020313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3577 + ... + 24916.

It is an arithmetic number, because the mean of its divisors is an integer number (18848781).

Almost surely, 2304020310 is an apocalyptic number.

304020310 is a deficient number, since it is larger than the sum of its proper divisors (299140682).

304020310 is a wasteful number, since it uses less digits than its factorization.

304020310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28608.

The product of its (nonzero) digits is 72, while the sum is 13.

The square root of 304020310 is about 17436.1781936295. The cubic root of 304020310 is about 672.4100550879.

Adding to 304020310 its reverse (13020403), we get a palindrome (317040713).

The spelling of 304020310 in words is "three hundred four million, twenty thousand, three hundred ten".

Divisors: 1 2 5 10 11 22 55 97 110 194 485 970 1067 2134 5335 10670 28493 56986 142465 284930 313423 626846 1567115 2763821 3134230 5527642 13819105 27638210 30402031 60804062 152010155 304020310