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30405500353 is a prime number
BaseRepresentation
bin11100010100010011…
…110001110111000001
32220111000022110021201
4130110103301313001
5444232302002403
621545035221201
72124322326424
oct342423616701
986430273251
1030405500353
1111993126498
125a868a7801
132b373b1137
1416862419bb
15bce52721d
hex7144f1dc1

30405500353 has 2 divisors, whose sum is σ = 30405500354. Its totient is φ = 30405500352.

The previous prime is 30405500347. The next prime is 30405500381. The reversal of 30405500353 is 35300550403.

It is an a-pointer prime, because the next prime (30405500381) can be obtained adding 30405500353 to its sum of digits (28).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22030871184 + 8374629169 = 148428^2 + 91513^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-30405500353 is a prime.

It is not a weakly prime, because it can be changed into another prime (30405500393) 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, 15202750176 + 15202750177.

It is an arithmetic number, because the mean of its divisors is an integer number (15202750177).

Almost surely, 230405500353 is an apocalyptic number.

It is an amenable number.

30405500353 is a deficient number, since it is larger than the sum of its proper divisors (1).

30405500353 is an equidigital number, since it uses as much as digits as its factorization.

30405500353 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13500, while the sum is 28.

The spelling of 30405500353 in words is "thirty billion, four hundred five million, five hundred thousand, three hundred fifty-three".