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31230282593 is a prime number
BaseRepresentation
bin11101000101011110…
…000100101101100001
32222121111021201211002
4131011132010231201
51002424423020333
622202541201345
72153626010366
oct350536045541
988544251732
1031230282593
1112276753604
126076b60255
132c39230073
1417239bc46d
15c2bb470e8
hex745784b61

31230282593 has 2 divisors, whose sum is σ = 31230282594. Its totient is φ = 31230282592.

The previous prime is 31230282553. The next prime is 31230282623. The reversal of 31230282593 is 39528203213.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 30913727329 + 316555264 = 175823^2 + 17792^2 .

It is a cyclic number.

It is not a de Polignac number, because 31230282593 - 28 = 31230282337 is a prime.

It is not a weakly prime, because it can be changed into another prime (31230282553) 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, 15615141296 + 15615141297.

It is an arithmetic number, because the mean of its divisors is an integer number (15615141297).

Almost surely, 231230282593 is an apocalyptic number.

It is an amenable number.

31230282593 is a deficient number, since it is larger than the sum of its proper divisors (1).

31230282593 is an equidigital number, since it uses as much as digits as its factorization.

31230282593 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 77760, while the sum is 38.

The spelling of 31230282593 in words is "thirty-one billion, two hundred thirty million, two hundred eighty-two thousand, five hundred ninety-three".