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30653430491 is a prime number
BaseRepresentation
bin11100100011000101…
…100011101011011011
32221010021211121111102
4130203011203223123
51000234234233431
622025413222015
72133422601005
oct344305435333
987107747442
1030653430491
1112000076032
125b3593190b
132b7687a668
1416ab13d375
15be619cdcb
hex723163adb

30653430491 has 2 divisors, whose sum is σ = 30653430492. Its totient is φ = 30653430490.

The previous prime is 30653430469. The next prime is 30653430517. The reversal of 30653430491 is 19403435603.

It is a weak prime.

It is an emirp because it is prime and its reverse (19403435603) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 30653430491 - 214 = 30653414107 is a prime.

It is not a weakly prime, because it can be changed into another prime (30653430391) 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, 15326715245 + 15326715246.

It is an arithmetic number, because the mean of its divisors is an integer number (15326715246).

Almost surely, 230653430491 is an apocalyptic number.

30653430491 is a deficient number, since it is larger than the sum of its proper divisors (1).

30653430491 is an equidigital number, since it uses as much as digits as its factorization.

30653430491 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 116640, while the sum is 38.

The spelling of 30653430491 in words is "thirty billion, six hundred fifty-three million, four hundred thirty thousand, four hundred ninety-one".