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30306044 = 22291371907
BaseRepresentation
bin111001110011…
…0111011111100
32010000201002002
41303212323330
530224243134
63001321432
7515411546
oct163467374
963021062
1030306044
111611a41a
12a196278
136381392
14404c696
1529d987e
hex1ce6efc

30306044 has 24 divisors (see below), whose sum is σ = 55293840. Its totient is φ = 14516096.

The previous prime is 30306041. The next prime is 30306047. The reversal of 30306044 is 44060303.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (30306041) and next prime (30306047).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30306041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14939 + ... + 16845.

It is an arithmetic number, because the mean of its divisors is an integer number (2303910).

Almost surely, 230306044 is an apocalyptic number.

It is an amenable number.

30306044 is a deficient number, since it is larger than the sum of its proper divisors (24987796).

30306044 is a wasteful number, since it uses less digits than its factorization.

30306044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2077 (or 2075 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 30306044 is about 5505.0925514473. The cubic root of 30306044 is about 311.7762887885.

Adding to 30306044 its reverse (44060303), we get a palindrome (74366347).

The spelling of 30306044 in words is "thirty million, three hundred six thousand, forty-four".

Divisors: 1 2 4 29 58 116 137 274 548 1907 3814 3973 7628 7946 15892 55303 110606 221212 261259 522518 1045036 7576511 15153022 30306044