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303104642 = 21381109741
BaseRepresentation
bin10010000100010…
…000001010000010
3210010100022101212
4102010100022002
51110043322032
650024330122
710340230001
oct2204201202
9703308355
10303104642
11146105005
1285613942
134aa46c79
142c380c38
151b923bb2
hex12110282

303104642 has 8 divisors (see below), whose sum is σ = 454990332. Its totient is φ = 151441200.

The previous prime is 303104623. The next prime is 303104647. The reversal of 303104642 is 246401303.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 279591841 + 23512801 = 16721^2 + 4849^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (303104647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52109 + ... + 57632.

Almost surely, 2303104642 is an apocalyptic number.

303104642 is a deficient number, since it is larger than the sum of its proper divisors (151885690).

303104642 is a wasteful number, since it uses less digits than its factorization.

303104642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111124.

The product of its (nonzero) digits is 1728, while the sum is 23.

The square root of 303104642 is about 17409.9006889758. The cubic root of 303104642 is about 671.7343068721.

Adding to 303104642 its reverse (246401303), we get a palindrome (549505945).

The spelling of 303104642 in words is "three hundred three million, one hundred four thousand, six hundred forty-two".

Divisors: 1 2 1381 2762 109741 219482 151552321 303104642