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30300310421 = 105907286103
BaseRepresentation
bin11100001110000010…
…100000101110010101
32220012200101020211022
4130032002200232111
5444023334413141
621530400450525
72121604250303
oct341602405625
986180336738
1030300310421
111193980a767
125a57619a45
132b1b671284
14167629d273
15bc5199b4b
hex70e0a0b95

30300310421 has 4 divisors (see below), whose sum is σ = 30300702432. Its totient is φ = 30299918412.

The previous prime is 30300310399. The next prime is 30300310427. The reversal of 30300310421 is 12401300303.

It is a happy number.

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 a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-30300310421 is a prime.

It is a super-2 number, since 2×303003104212 (a number of 22 digits) contains 22 as substring.

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 30300310421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30300310427) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37145 + ... + 248958.

It is an arithmetic number, because the mean of its divisors is an integer number (7575175608).

Almost surely, 230300310421 is an apocalyptic number.

It is an amenable number.

30300310421 is a deficient number, since it is larger than the sum of its proper divisors (392011).

30300310421 is a wasteful number, since it uses less digits than its factorization.

30300310421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 392010.

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 30300310421 its reverse (12401300303), we get a palindrome (42701610724).

The spelling of 30300310421 in words is "thirty billion, three hundred million, three hundred ten thousand, four hundred twenty-one".

Divisors: 1 105907 286103 30300310421