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30235236 = 2232519603
BaseRepresentation
bin111001101010…
…1101001100100
32002220002221120
41303111221210
530220011421
63000013540
7514665243
oct163255144
962802846
1030235236
11160811a9
12a1612b0
136358095
14403095a
1529c38c6
hex1cd5a64

30235236 has 12 divisors (see below), whose sum is σ = 70548912. Its totient is φ = 10078408.

The previous prime is 30235223. The next prime is 30235237. The reversal of 30235236 is 63253203.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (30235237) 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 3 ways as a sum of consecutive naturals, for example, 1259790 + ... + 1259813.

It is an arithmetic number, because the mean of its divisors is an integer number (5879076).

Almost surely, 230235236 is an apocalyptic number.

It is an amenable number.

30235236 is an abundant number, since it is smaller than the sum of its proper divisors (40313676).

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

30235236 is a wasteful number, since it uses less digits than its factorization.

30235236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2519610 (or 2519608 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 24.

The square root of 30235236 is about 5498.6576543735. The cubic root of 30235236 is about 311.5332847744.

Adding to 30235236 its reverse (63253203), we get a palindrome (93488439).

The spelling of 30235236 in words is "thirty million, two hundred thirty-five thousand, two hundred thirty-six".

Divisors: 1 2 3 4 6 12 2519603 5039206 7558809 10078412 15117618 30235236