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30666301 = 109328057
BaseRepresentation
bin111010011111…
…0111000111101
32010201000020221
41310332320331
530322310201
63013141341
7521442061
oct164767075
963630227
1030666301
1116346056
12a32a851
136479353
144103aa1
152a5b4a1
hex1d3ee3d

30666301 has 4 divisors (see below), whose sum is σ = 30695452. Its totient is φ = 30637152.

The previous prime is 30666257. The next prime is 30666313. The reversal of 30666301 is 10366603.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 25260676 + 5405625 = 5026^2 + 2325^2 .

It is a cyclic number.

It is not a de Polignac number, because 30666301 - 27 = 30666173 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 (30666001) 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, 12936 + ... + 15121.

It is an arithmetic number, because the mean of its divisors is an integer number (7673863).

Almost surely, 230666301 is an apocalyptic number.

It is an amenable number.

30666301 is a deficient number, since it is larger than the sum of its proper divisors (29151).

30666301 is a wasteful number, since it uses less digits than its factorization.

30666301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29150.

The product of its (nonzero) digits is 1944, while the sum is 25.

The square root of 30666301 is about 5537.7162260268. The cubic root of 30666301 is about 313.0068183349.

The spelling of 30666301 in words is "thirty million, six hundred sixty-six thousand, three hundred one".

Divisors: 1 1093 28057 30666301