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30523021049 is a prime number
BaseRepresentation
bin11100011011010100…
…000101011011111001
32220210012110010101002
4130123110011123321
51000002343133144
622004434134345
72130250253363
oct343324053371
986705403332
1030523021049
1111a434a4534
125aba1213b5
132b5584a701
141697ab3d33
15bd99dd14e
hex71b5056f9

30523021049 has 2 divisors, whose sum is σ = 30523021050. Its totient is φ = 30523021048.

The previous prime is 30523021031. The next prime is 30523021051. The reversal of 30523021049 is 94012032503.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 27103695424 + 3419325625 = 164632^2 + 58475^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-30523021049 is a prime.

Together with 30523021051, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (30523021019) 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 as a sum of consecutive naturals, namely, 15261510524 + 15261510525.

It is an arithmetic number, because the mean of its divisors is an integer number (15261510525).

Almost surely, 230523021049 is an apocalyptic number.

It is an amenable number.

30523021049 is a deficient number, since it is larger than the sum of its proper divisors (1).

30523021049 is an equidigital number, since it uses as much as digits as its factorization.

30523021049 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6480, while the sum is 29.

The spelling of 30523021049 in words is "thirty billion, five hundred twenty-three million, twenty-one thousand, forty-nine".