Search a number
-
+
30800311211 is a prime number
BaseRepresentation
bin11100101011110101…
…110111001110101011
32221111112012220222002
4130223311313032223
51001034334424321
622052141321215
72140155216455
oct345365671653
987445186862
1030800311211
1112075a7775a
125b76b6620b
132b9b126827
1416c28552d5
15c0401320b
hex72bd773ab

30800311211 has 2 divisors, whose sum is σ = 30800311212. Its totient is φ = 30800311210.

The previous prime is 30800311189. The next prime is 30800311231. The reversal of 30800311211 is 11211300803.

It is an a-pointer prime, because the next prime (30800311231) can be obtained adding 30800311211 to its sum of digits (20).

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 30800311211 - 26 = 30800311147 is a prime.

It is not a weakly prime, because it can be changed into another prime (30800311231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15400155605 + 15400155606.

It is an arithmetic number, because the mean of its divisors is an integer number (15400155606).

Almost surely, 230800311211 is an apocalyptic number.

30800311211 is a deficient number, since it is larger than the sum of its proper divisors (1).

30800311211 is an equidigital number, since it uses as much as digits as its factorization.

30800311211 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 20.

The spelling of 30800311211 in words is "thirty billion, eight hundred million, three hundred eleven thousand, two hundred eleven".