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30124693 is a prime number
BaseRepresentation
bin111001011101…
…0101010010101
32002200111022101
41302322222111
530202442233
62553402101
7514025044
oct162725225
962614271
1030124693
1116006145
12a109331
136319981
14400255b
1529a0c7d
hex1cbaa95

30124693 has 2 divisors, whose sum is σ = 30124694. Its totient is φ = 30124692.

The previous prime is 30124669. The next prime is 30124727. The reversal of 30124693 is 39642103.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22496049 + 7628644 = 4743^2 + 2762^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-30124693 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30124613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15062346 + 15062347.

It is an arithmetic number, because the mean of its divisors is an integer number (15062347).

Almost surely, 230124693 is an apocalyptic number.

It is an amenable number.

30124693 is a deficient number, since it is larger than the sum of its proper divisors (1).

30124693 is an equidigital number, since it uses as much as digits as its factorization.

30124693 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3888, while the sum is 28.

The square root of 30124693 is about 5488.5966330201. The cubic root of 30124693 is about 311.1531556792.

Adding to 30124693 its reverse (39642103), we get a palindrome (69766796).

The spelling of 30124693 in words is "thirty million, one hundred twenty-four thousand, six hundred ninety-three".