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304998340 = 22515249917
BaseRepresentation
bin10010001011011…
…110011111000100
3210020220112001211
4102023132133010
51111034421330
650133101204
710362304663
oct2213363704
9706815054
10304998340
11147188849
1286187804
134b25abba
142c714dda
151bb99d2a
hex122de7c4

304998340 has 12 divisors (see below), whose sum is σ = 640496556. Its totient is φ = 121999328.

The previous prime is 304998313. The next prime is 304998349. The reversal of 304998340 is 43899403.

304998340 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 151585344 + 153412996 = 12312^2 + 12386^2 .

It is a junction number, because it is equal to n+sod(n) for n = 304998293 and 304998302.

It is not an unprimeable number, because it can be changed into a prime (304998349) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7624939 + ... + 7624978.

It is an arithmetic number, because the mean of its divisors is an integer number (53374713).

Almost surely, 2304998340 is an apocalyptic number.

It is an amenable number.

304998340 is an abundant number, since it is smaller than the sum of its proper divisors (335498216).

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

304998340 is a wasteful number, since it uses less digits than its factorization.

304998340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15249926 (or 15249924 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 40.

The square root of 304998340 is about 17464.2016708466. The cubic root of 304998340 is about 673.1303285239.

The spelling of 304998340 in words is "three hundred four million, nine hundred ninety-eight thousand, three hundred forty".

Divisors: 1 2 4 5 10 20 15249917 30499834 60999668 76249585 152499170 304998340