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30331234 = 21031131303
BaseRepresentation
bin111001110110…
…1000101100010
32010001222122001
41303231011202
530231044414
63002034214
7515545153
oct163550542
963058561
1030331234
111613733a
12a1a896a
13638c99b
14405792a
1529e2074
hex1ced162

30331234 has 16 divisors (see below), whose sum is σ = 46380672. Its totient is φ = 14874048.

The previous prime is 30331207. The next prime is 30331243. The reversal of 30331234 is 43213303.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 22627 + ... + 23929.

It is an arithmetic number, because the mean of its divisors is an integer number (2898792).

Almost surely, 230331234 is an apocalyptic number.

30331234 is a deficient number, since it is larger than the sum of its proper divisors (16049438).

30331234 is a wasteful number, since it uses less digits than its factorization.

30331234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1521.

The product of its (nonzero) digits is 648, while the sum is 19.

The square root of 30331234 is about 5507.3799578384. The cubic root of 30331234 is about 311.8626463675.

Adding to 30331234 its reverse (43213303), we get a palindrome (73544537).

The spelling of 30331234 in words is "thirty million, three hundred thirty-one thousand, two hundred thirty-four".

Divisors: 1 2 103 113 206 226 1303 2606 11639 23278 134209 147239 268418 294478 15165617 30331234