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30664212541 is a prime number
BaseRepresentation
bin11100100011101110…
…101100000000111101
32221011001010101200121
4130203232230000331
51000300014300131
622030440254541
72133613335364
oct344356540075
987131111617
1030664212541
111200616a816
125b39471451
132b78b84181
1416ac7487db
15be70cc911
hex723bac03d

30664212541 has 2 divisors, whose sum is σ = 30664212542. Its totient is φ = 30664212540.

The previous prime is 30664212529. The next prime is 30664212547. The reversal of 30664212541 is 14521246603.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20665212516 + 9999000025 = 143754^2 + 99995^2 .

It is a cyclic number.

It is not a de Polignac number, because 30664212541 - 27 = 30664212413 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 30664212497 and 30664212506.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30664212547) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15332106270 + 15332106271.

It is an arithmetic number, because the mean of its divisors is an integer number (15332106271).

Almost surely, 230664212541 is an apocalyptic number.

It is an amenable number.

30664212541 is a deficient number, since it is larger than the sum of its proper divisors (1).

30664212541 is an equidigital number, since it uses as much as digits as its factorization.

30664212541 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 34560, while the sum is 34.

The spelling of 30664212541 in words is "thirty billion, six hundred sixty-four million, two hundred twelve thousand, five hundred forty-one".