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304221230 = 25234132261
BaseRepresentation
bin10010001000100…
…000110000101110
3210012110001001222
4102020200300232
51110340034410
650104303342
710352560235
oct2210406056
9705401058
10304221230
111467a7a05
1285a71b52
134b048281
142c591b1c
151ba94955
hex12220c2e

304221230 has 32 divisors (see below), whose sum is σ = 585361728. Its totient is φ = 113555200.

The previous prime is 304221221. The next prime is 304221263. The reversal of 304221230 is 32122403.

It is a junction number, because it is equal to n+sod(n) for n = 304221199 and 304221208.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6701 + ... + 25560.

It is an arithmetic number, because the mean of its divisors is an integer number (18292554).

Almost surely, 2304221230 is an apocalyptic number.

304221230 is a deficient number, since it is larger than the sum of its proper divisors (281140498).

304221230 is a wasteful number, since it uses less digits than its factorization.

304221230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32332.

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 304221230 is about 17441.9388257154. The cubic root of 304221230 is about 672.5581492262.

Adding to 304221230 its reverse (32122403), we get a palindrome (336343633).

The spelling of 304221230 in words is "three hundred four million, two hundred twenty-one thousand, two hundred thirty".

Divisors: 1 2 5 10 23 41 46 82 115 205 230 410 943 1886 4715 9430 32261 64522 161305 322610 742003 1322701 1484006 2645402 3710015 6613505 7420030 13227010 30422123 60844246 152110615 304221230