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30131312201 = 263114567727
BaseRepresentation
bin11100000011111101…
…110101011001001001
32212202220101020211222
4130003331311121021
5443202103442301
621501522331425
72114452633154
oct340375653111
985686336758
1030131312201
1111862381911
125a0aab9b75
132ac264cc23
14165ba6ac9b
15bb541631b
hex703f75649

30131312201 has 4 divisors (see below), whose sum is σ = 30245880192. Its totient is φ = 30016744212.

The previous prime is 30131312179. The next prime is 30131312207. The reversal of 30131312201 is 10221313103.

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 a de Polignac number, because none of the positive numbers 2k-30131312201 is a prime.

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 30131312201.

It is not an unprimeable number, because it can be changed into a prime (30131312207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 57283601 + ... + 57284126.

It is an arithmetic number, because the mean of its divisors is an integer number (7561470048).

Almost surely, 230131312201 is an apocalyptic number.

It is an amenable number.

30131312201 is a deficient number, since it is larger than the sum of its proper divisors (114567991).

30131312201 is a wasteful number, since it uses less digits than its factorization.

30131312201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114567990.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 30131312201 its reverse (10221313103), we get a palindrome (40352625304).

The spelling of 30131312201 in words is "thirty billion, one hundred thirty-one million, three hundred twelve thousand, two hundred one".

Divisors: 1 263 114567727 30131312201