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304919428 = 22116929987
BaseRepresentation
bin10010001011001…
…011001110000100
3210020202111211011
4102023023032010
51111024410203
650131252004
710361525632
oct2213131604
9706674734
10304919428
11147134530
128614a004
134b230cc8
142c6d4352
151bb8176d
hex122cb384

304919428 has 12 divisors (see below), whose sum is σ = 582118992. Its totient is φ = 138599720.

The previous prime is 304919413. The next prime is 304919431. The reversal of 304919428 is 824919403.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3464950 + ... + 3465037.

It is an arithmetic number, because the mean of its divisors is an integer number (48509916).

Almost surely, 2304919428 is an apocalyptic number.

It is an amenable number.

304919428 is a deficient number, since it is larger than the sum of its proper divisors (277199564).

304919428 is a wasteful number, since it uses less digits than its factorization.

304919428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6930002 (or 6930000 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 40.

The square root of 304919428 is about 17461.9422745581. The cubic root of 304919428 is about 673.0722706755.

The spelling of 304919428 in words is "three hundred four million, nine hundred nineteen thousand, four hundred twenty-eight".

Divisors: 1 2 4 11 22 44 6929987 13859974 27719948 76229857 152459714 304919428