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304055240 = 23524131541
BaseRepresentation
bin10010000111111…
…000001111001000
3210012010121101012
4102013320033020
51110314231430
650100543052
710351266266
oct2207701710
9705117335
10304055240
111466a4225
12859b1a88
134acba858
142c54b436
151ba60695
hex121f83c8

304055240 has 32 divisors (see below), whose sum is σ = 686984760. Its totient is φ = 121113600.

The previous prime is 304055231. The next prime is 304055243. The reversal of 304055240 is 42550403.

It can be written as a sum of positive squares in 4 ways, for example, as 181333156 + 122722084 = 13466^2 + 11078^2 .

It is not an unprimeable number, because it can be changed into a prime (304055243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6131 + ... + 25410.

Almost surely, 2304055240 is an apocalyptic number.

It is an amenable number.

304055240 is an abundant number, since it is smaller than the sum of its proper divisors (382929520).

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

304055240 is a wasteful number, since it uses less digits than its factorization.

304055240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31793 (or 31789 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 23.

The square root of 304055240 is about 17437.1798178490. The cubic root of 304055240 is about 672.4358059812.

The spelling of 304055240 in words is "three hundred four million, fifty-five thousand, two hundred forty".

Divisors: 1 2 4 5 8 10 20 40 241 482 964 1205 1928 2410 4820 9640 31541 63082 126164 157705 252328 315410 630820 1261640 7601381 15202762 30405524 38006905 60811048 76013810 152027620 304055240