Search a number
-
+
304245479 is a prime number
BaseRepresentation
bin10010001000100…
…110101011100111
3210012111021100002
4102020212223213
51110341323404
650105011515
710353021026
oct2210465347
9705437302
10304245479
1114681414a
1285a83b9b
134b056315
142c59a8bd
151ba9bc1e
hex12226ae7

304245479 has 2 divisors, whose sum is σ = 304245480. Its totient is φ = 304245478.

The previous prime is 304245463. The next prime is 304245497. The reversal of 304245479 is 974542403.

Together with next prime (304245497) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 304245479 - 24 = 304245463 is a prime.

It is a super-2 number, since 2×3042454792 = 185130622983878882, which contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (304245419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 152122739 + 152122740.

It is an arithmetic number, because the mean of its divisors is an integer number (152122740).

Almost surely, 2304245479 is an apocalyptic number.

304245479 is a deficient number, since it is larger than the sum of its proper divisors (1).

304245479 is an equidigital number, since it uses as much as digits as its factorization.

304245479 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 120960, while the sum is 38.

The square root of 304245479 is about 17442.6339467410. The cubic root of 304245479 is about 672.5760182720.

The spelling of 304245479 in words is "three hundred four million, two hundred forty-five thousand, four hundred seventy-nine".