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30434220461 is a prime number
BaseRepresentation
bin11100010110000001…
…010101100110101101
32220120000100120212102
4130112001111212231
5444312130023321
621551542544445
72125121414501
oct342601254655
986500316772
1030434220461
11119a8362317
125a94438125
132b40328698
141689d9a301
15bd1cebc0b
hex7160559ad

30434220461 has 2 divisors, whose sum is σ = 30434220462. Its totient is φ = 30434220460.

The previous prime is 30434220407. The next prime is 30434220493. The reversal of 30434220461 is 16402243403.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18158910025 + 12275310436 = 134755^2 + 110794^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-30434220461 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30434520461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15217110230 + 15217110231.

It is an arithmetic number, because the mean of its divisors is an integer number (15217110231).

Almost surely, 230434220461 is an apocalyptic number.

It is an amenable number.

30434220461 is a deficient number, since it is larger than the sum of its proper divisors (1).

30434220461 is an equidigital number, since it uses as much as digits as its factorization.

30434220461 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13824, while the sum is 29.

Adding to 30434220461 its reverse (16402243403), we get a palindrome (46836463864).

The spelling of 30434220461 in words is "thirty billion, four hundred thirty-four million, two hundred twenty thousand, four hundred sixty-one".