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30339013 = 191158843
BaseRepresentation
bin111001110111…
…0111111000101
32010002101022011
41303232333011
530231322023
63002134221
7515606635
oct163567705
963071264
1030339013
1116142171
12a1b1371
1363933a3
14405a6c5
1529e450d
hex1ceefc5

30339013 has 4 divisors (see below), whose sum is σ = 30498048. Its totient is φ = 30179980.

The previous prime is 30338993. The next prime is 30339041. The reversal of 30339013 is 31093303.

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, and also an emirpimes, since its reverse is a distinct semiprime: 31093303 = 82937507.

It is a cyclic number.

It is not a de Polignac number, because 30339013 - 29 = 30338501 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30339313) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 79231 + ... + 79612.

It is an arithmetic number, because the mean of its divisors is an integer number (7624512).

Almost surely, 230339013 is an apocalyptic number.

It is an amenable number.

30339013 is a deficient number, since it is larger than the sum of its proper divisors (159035).

30339013 is a wasteful number, since it uses less digits than its factorization.

30339013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159034.

The product of its (nonzero) digits is 729, while the sum is 22.

The square root of 30339013 is about 5508.0861467483. The cubic root of 30339013 is about 311.8893050494.

The spelling of 30339013 in words is "thirty million, three hundred thirty-nine thousand, thirteen".

Divisors: 1 191 158843 30339013