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30038109 = 310012703
BaseRepresentation
bin111001010010…
…1100001011101
32002112002112120
41302211201131
530142204414
62551453153
7513214443
oct162454135
962462476
1030038109
1115a57092
12a0871b9
1362b943a
143dbcb93
1529852a9
hex1ca585d

30038109 has 4 divisors (see below), whose sum is σ = 40050816. Its totient is φ = 20025404.

The previous prime is 30038093. The next prime is 30038119. The reversal of 30038109 is 90183003.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 30038109 - 24 = 30038093 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30038119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5006349 + ... + 5006354.

It is an arithmetic number, because the mean of its divisors is an integer number (10012704).

Almost surely, 230038109 is an apocalyptic number.

It is an amenable number.

30038109 is a deficient number, since it is larger than the sum of its proper divisors (10012707).

30038109 is a wasteful number, since it uses less digits than its factorization.

30038109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10012706.

The product of its (nonzero) digits is 648, while the sum is 24.

The square root of 30038109 is about 5480.7033307779. The cubic root of 30038109 is about 310.8547655050.

The spelling of 30038109 in words is "thirty million, thirty-eight thousand, one hundred nine".

Divisors: 1 3 10012703 30038109