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304030111 = 71121118713
BaseRepresentation
bin10010000111110…
…010000110011111
3210012002022220111
4102013302012133
51110312430421
650100230451
710351133110
oct2207620637
9705068814
10304030111
11146687360
128599b427
134acac298
142c542207
151ba57ee1
hex121f219f

304030111 has 16 divisors (see below), whose sum is σ = 380867328. Its totient is φ = 235771200.

The previous prime is 304030109. The next prime is 304030163. The reversal of 304030111 is 111030403.

It is not a de Polignac number, because 304030111 - 21 = 304030109 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 304030091 and 304030100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (304030711) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6891 + ... + 25603.

It is an arithmetic number, because the mean of its divisors is an integer number (23804208).

Almost surely, 2304030111 is an apocalyptic number.

304030111 is a deficient number, since it is larger than the sum of its proper divisors (76837217).

304030111 is a wasteful number, since it uses less digits than its factorization.

304030111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18942.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 304030111 is about 17436.4592449270. The cubic root of 304030111 is about 672.4172807237.

Adding to 304030111 its reverse (111030403), we get a palindrome (415060514).

The spelling of 304030111 in words is "three hundred four million, thirty thousand, one hundred eleven".

Divisors: 1 7 11 77 211 1477 2321 16247 18713 130991 205843 1440901 3948443 27639101 43432873 304030111