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305246425 = 52111109987
BaseRepresentation
bin10010001100011…
…011000011011001
3210021101010101011
4102030123003121
51111120341200
650142253521
710364360161
oct2214330331
9707333334
10305246425
11147338180
12862872a1
134b316ab3
142c77b5a1
151bbe85ba
hex1231b0d9

305246425 has 12 divisors (see below), whose sum is σ = 412915536. Its totient is φ = 221997200.

The previous prime is 305246423. The next prime is 305246477. The reversal of 305246425 is 524642503.

It is not a de Polignac number, because 305246425 - 21 = 305246423 is a prime.

It is not an unprimeable number, because it can be changed into a prime (305246423) 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 11 ways as a sum of consecutive naturals, for example, 554719 + ... + 555268.

It is an arithmetic number, because the mean of its divisors is an integer number (34409628).

Almost surely, 2305246425 is an apocalyptic number.

It is an amenable number.

305246425 is a deficient number, since it is larger than the sum of its proper divisors (107669111).

305246425 is a wasteful number, since it uses less digits than its factorization.

305246425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1110008 (or 1110003 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 31.

The square root of 305246425 is about 17471.3028993261. The cubic root of 305246425 is about 673.3127866542.

Adding to 305246425 its reverse (524642503), we get a palindrome (829888928).

The spelling of 305246425 in words is "three hundred five million, two hundred forty-six thousand, four hundred twenty-five".

Divisors: 1 5 11 25 55 275 1109987 5549935 12209857 27749675 61049285 305246425