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30032305 = 58372367
BaseRepresentation
bin111001010010…
…0000110110001
32002111210120121
41302210012301
530142013210
62551410241
7513161512
oct162440661
962453517
1030032305
1115a52796
12a083981
1362b68c4
143dbaa09
1529836da
hex1ca41b1

30032305 has 8 divisors (see below), whose sum is σ = 36473472. Its totient is φ = 23736048.

The previous prime is 30032297. The next prime is 30032309. The reversal of 30032305 is 50323003.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 30032305 - 23 = 30032297 is a prime.

It is a super-2 number, since 2×300323052 = 1803878687226050, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30032309) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35769 + ... + 36598.

It is an arithmetic number, because the mean of its divisors is an integer number (4559184).

Almost surely, 230032305 is an apocalyptic number.

It is an amenable number.

30032305 is a deficient number, since it is larger than the sum of its proper divisors (6441167).

30032305 is an equidigital number, since it uses as much as digits as its factorization.

30032305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72455.

The product of its (nonzero) digits is 270, while the sum is 16.

The square root of 30032305 is about 5480.1738111122. The cubic root of 30032305 is about 310.8347429699.

Adding to 30032305 its reverse (50323003), we get a palindrome (80355308).

The spelling of 30032305 in words is "thirty million, thirty-two thousand, three hundred five".

Divisors: 1 5 83 415 72367 361835 6006461 30032305