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30053256 = 2331252219
BaseRepresentation
bin111001010100…
…1001110001000
32002112212022120
41302221032020
530143201011
62552051240
7513306552
oct162511610
962485276
1030053256
1115a67502
12a093b20
1362c32bc
143dc44d2
152989a06
hex1ca9388

30053256 has 16 divisors (see below), whose sum is σ = 75133200. Its totient is φ = 10017744.

The previous prime is 30053209. The next prime is 30053267. The reversal of 30053256 is 65235003.

It is a Harshad number since it is a multiple of its sum of digits (24), and also a Moran number because the ratio is a prime number: 1252219 = 30053256 / (3 + 0 + 0 + 5 + 3 + 2 + 5 + 6).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 626086 + ... + 626133.

It is an arithmetic number, because the mean of its divisors is an integer number (4695825).

Almost surely, 230053256 is an apocalyptic number.

It is an amenable number.

30053256 is an abundant number, since it is smaller than the sum of its proper divisors (45079944).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30053256 is a wasteful number, since it uses less digits than its factorization.

30053256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1252228 (or 1252224 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 24.

The square root of 30053256 is about 5482.0850048134. The cubic root of 30053256 is about 310.9070072081.

Adding to 30053256 its reverse (65235003), we get a palindrome (95288259).

The spelling of 30053256 in words is "thirty million, fifty-three thousand, two hundred fifty-six".

Divisors: 1 2 3 4 6 8 12 24 1252219 2504438 3756657 5008876 7513314 10017752 15026628 30053256