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2749000031 is a prime number
BaseRepresentation
bin1010001111011010…
…0110100101011111
321002120201200002222
42203312212211133
521112221000111
61132440335555
7125060054231
oct24366464537
97076650088
102749000031
111190814458
126487745bb
1334a6b194b
141c114a251
151115137db
hexa3da695f

2749000031 has 2 divisors, whose sum is σ = 2749000032. Its totient is φ = 2749000030.

The previous prime is 2749000013. The next prime is 2749000097. The reversal of 2749000031 is 1300009472.

Together with previous prime (2749000013) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2749000031 - 214 = 2748983647 is a prime.

It is a super-2 number, since 2×27490000312 = 15114002340876001922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2749000231) 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, 1374500015 + 1374500016.

It is an arithmetic number, because the mean of its divisors is an integer number (1374500016).

Almost surely, 22749000031 is an apocalyptic number.

2749000031 is a deficient number, since it is larger than the sum of its proper divisors (1).

2749000031 is an equidigital number, since it uses as much as digits as its factorization.

2749000031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1512, while the sum is 26.

The square root of 2749000031 is about 52430.9072113005. The cubic root of 2749000031 is about 1400.8498294394.

The spelling of 2749000031 in words is "two billion, seven hundred forty-nine million, thirty-one", and thus it is an aban number.