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304223104 = 274761829
BaseRepresentation
bin10010001000100…
…001001110000000
3210012110010122101
4102020201032000
51110340114404
650104320144
710352565553
oct2210411600
9705403571
10304223104
111467a9359
1285a73054
134b049093
142c59269a
151ba952a4
hex12221380

304223104 has 64 divisors (see below), whose sum is σ = 629870400. Its totient is φ = 146257920.

The previous prime is 304223099. The next prime is 304223107. The reversal of 304223104 is 401322403.

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (304223107) 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, 366562 + ... + 367390.

It is an arithmetic number, because the mean of its divisors is an integer number (9841725).

Almost surely, 2304223104 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 304223104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (314935200).

304223104 is an abundant number, since it is smaller than the sum of its proper divisors (325647296).

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

304223104 is an equidigital number, since it uses as much as digits as its factorization.

304223104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 951 (or 939 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 304223104 is about 17441.9925467247. The cubic root of 304223104 is about 672.5595302074.

Adding to 304223104 its reverse (401322403), we get a palindrome (705545507).

The spelling of 304223104 in words is "three hundred four million, two hundred twenty-three thousand, one hundred four".

Divisors: 1 2 4 8 16 32 47 61 64 94 122 128 188 244 376 488 752 829 976 1504 1658 1952 2867 3008 3316 3904 5734 6016 6632 7808 11468 13264 22936 26528 38963 45872 50569 53056 77926 91744 101138 106112 155852 183488 202276 311704 366976 404552 623408 809104 1246816 1618208 2376743 2493632 3236416 4753486 4987264 6472832 9506972 19013944 38027888 76055776 152111552 304223104