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304072801 = 292361561
BaseRepresentation
bin10010000111111…
…100100001100001
3210012011111110121
4102013330201201
51110320312201
650101200241
710351401424
oct2207744141
9705144417
10304072801
1114670643a
1285a00081
134acc5846
142c5539bb
151ba659a1
hex121fc861

304072801 has 6 divisors (see below), whose sum is σ = 314920502. Its totient is φ = 293586720.

The previous prime is 304072753. The next prime is 304072807. The reversal of 304072801 is 108270403.

It can be written as a sum of positive squares in 3 ways, for example, as 54464400 + 249608401 = 7380^2 + 15799^2 .

It is not a de Polignac number, because 304072801 - 213 = 304064609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (304072807) 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 5 ways as a sum of consecutive naturals, for example, 179940 + ... + 181621.

Almost surely, 2304072801 is an apocalyptic number.

It is an amenable number.

304072801 is a deficient number, since it is larger than the sum of its proper divisors (10847701).

304072801 is an equidigital number, since it uses as much as digits as its factorization.

304072801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 361619 (or 361590 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 25.

The square root of 304072801 is about 17437.6833610431. The cubic root of 304072801 is about 672.4487514555.

The spelling of 304072801 in words is "three hundred four million, seventy-two thousand, eight hundred one".

Divisors: 1 29 841 361561 10485269 304072801