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30308284 = 227577071
BaseRepresentation
bin111001110011…
…1011110111100
32010000211011001
41303213132330
530224331114
63001340044
7515421226
oct163473674
963024131
1030308284
1116121076
12a197624
1363823c6
14404d416
1529da374
hex1ce77bc

30308284 has 6 divisors (see below), whose sum is σ = 53039504. Its totient is φ = 15154140.

The previous prime is 30308261. The next prime is 30308293. The reversal of 30308284 is 48280303.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 3788532 + ... + 3788539.

Almost surely, 230308284 is an apocalyptic number.

It is an amenable number.

30308284 is a deficient number, since it is larger than the sum of its proper divisors (22731220).

30308284 is a wasteful number, since it uses less digits than its factorization.

30308284 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7577075 (or 7577073 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 28.

The square root of 30308284 is about 5505.2959956754. The cubic root of 30308284 is about 311.7839700031.

Adding to 30308284 its reverse (48280303), we get a palindrome (78588587).

The spelling of 30308284 in words is "thirty million, three hundred eight thousand, two hundred eighty-four".

Divisors: 1 2 4 7577071 15154142 30308284