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2748131 is a prime number
BaseRepresentation
bin1010011110111011100011
312011121201122
422132323203
51200420011
6134522455
732234021
oct12367343
95147648
102748131
111607791
12b0642b
13752b19
14517711
153943db
hex29eee3

2748131 has 2 divisors, whose sum is σ = 2748132. Its totient is φ = 2748130.

The previous prime is 2748113. The next prime is 2748133. The reversal of 2748131 is 1318472.

Together with previous prime (2748113) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-2748131 is a prime.

It is a super-2 number, since 2×27481312 = 15104447986322, which contains 22 as substring.

Together with 2748133, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2748131.

It is not a weakly prime, because it can be changed into another prime (2748133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1374065 + 1374066.

It is an arithmetic number, because the mean of its divisors is an integer number (1374066).

22748131 is an apocalyptic number.

2748131 is a deficient number, since it is larger than the sum of its proper divisors (1).

2748131 is an equidigital number, since it uses as much as digits as its factorization.

2748131 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1344, while the sum is 26.

The square root of 2748131 is about 1657.7487746942. The cubic root of 2748131 is about 140.0702198759.

The spelling of 2748131 in words is "two million, seven hundred forty-eight thousand, one hundred thirty-one".