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304894028 = 2276223507
BaseRepresentation
bin10010001011000…
…101000001001100
3210020201012222102
4102023011001030
51111023102103
650130534232
710361361605
oct2213050114
9706635872
10304894028
1114711743a
1286137378
134b22258a
142c6c8dac
151bb78e88
hex122c504c

304894028 has 6 divisors (see below), whose sum is σ = 533564556. Its totient is φ = 152447012.

The previous prime is 304894027. The next prime is 304894061. The reversal of 304894028 is 820498403.

It is a junction number, because it is equal to n+sod(n) for n = 304893982 and 304894000.

It is not an unprimeable number, because it can be changed into a prime (304894027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38111750 + ... + 38111757.

It is an arithmetic number, because the mean of its divisors is an integer number (88927426).

Almost surely, 2304894028 is an apocalyptic number.

It is an amenable number.

304894028 is a deficient number, since it is larger than the sum of its proper divisors (228670528).

304894028 is a wasteful number, since it uses less digits than its factorization.

304894028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76223511 (or 76223509 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 38.

The square root of 304894028 is about 17461.2149634554. The cubic root of 304894028 is about 673.0535810274.

The spelling of 304894028 in words is "three hundred four million, eight hundred ninety-four thousand, twenty-eight".

Divisors: 1 2 4 76223507 152447014 304894028