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30668203 = 44836841
BaseRepresentation
bin111010011111…
…1010110101011
32010201002212101
41310333112223
530322340303
63013154231
7521450446
oct164772653
963632771
1030668203
1116347525
12a32b977
13647a187
14410465d
152a5bd1d
hex1d3f5ab

30668203 has 4 divisors (see below), whose sum is σ = 30679528. Its totient is φ = 30656880.

The previous prime is 30668189. The next prime is 30668213. The reversal of 30668203 is 30286603.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 30668203 - 25 = 30668171 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30668213) 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, 1063 + ... + 7903.

It is an arithmetic number, because the mean of its divisors is an integer number (7669882).

Almost surely, 230668203 is an apocalyptic number.

30668203 is a deficient number, since it is larger than the sum of its proper divisors (11325).

30668203 is an equidigital number, since it uses as much as digits as its factorization.

30668203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11324.

The product of its (nonzero) digits is 5184, while the sum is 28.

The square root of 30668203 is about 5537.8879548073. The cubic root of 30668203 is about 313.0132893540.

The spelling of 30668203 in words is "thirty million, six hundred sixty-eight thousand, two hundred three".

Divisors: 1 4483 6841 30668203