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30033949 = 117093851
BaseRepresentation
bin111001010010…
…0100000011101
32002111212211111
41302210200131
530142041244
62551422021
7513166351
oct162444035
962455744
1030033949
1115a53a50
12a084911
1362b758a
143dbb461
152983e34
hex1ca481d

30033949 has 8 divisors (see below), whose sum is σ = 32819040. Its totient is φ = 27258000.

The previous prime is 30033911. The next prime is 30033953. The reversal of 30033949 is 94933003.

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

It is a de Polignac number, because none of the positive numbers 2k-30033949 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 30033949.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30033959) 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, 5874 + ... + 9724.

It is an arithmetic number, because the mean of its divisors is an integer number (4102380).

Almost surely, 230033949 is an apocalyptic number.

It is an amenable number.

30033949 is a deficient number, since it is larger than the sum of its proper divisors (2785091).

30033949 is a wasteful number, since it uses less digits than its factorization.

30033949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4571.

The product of its (nonzero) digits is 8748, while the sum is 31.

The square root of 30033949 is about 5480.3238043021. The cubic root of 30033949 is about 310.8404146735.

The spelling of 30033949 in words is "thirty million, thirty-three thousand, nine hundred forty-nine".

Divisors: 1 11 709 3851 7799 42361 2730359 30033949