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2196731 is a prime number
BaseRepresentation
bin1000011000010011111011
311010121100102
420120103323
51030243411
6115030015
724446315
oct10302373
94117312
102196731
111270489
1289b30b
135bbb54
144127b5
152d5d3b
hex2184fb

2196731 has 2 divisors, whose sum is σ = 2196732. Its totient is φ = 2196730.

The previous prime is 2196713. The next prime is 2196737. The reversal of 2196731 is 1376912.

2196731 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

Together with previous prime (2196713) 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 not a de Polignac number, because 2196731 - 210 = 2195707 is a prime.

It is a super-2 number, since 2×21967312 = 9651254172722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2196694 and 2196703.

It is not a weakly prime, because it can be changed into another prime (2196737) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1098365 + 1098366.

It is an arithmetic number, because the mean of its divisors is an integer number (1098366).

22196731 is an apocalyptic number.

2196731 is a deficient number, since it is larger than the sum of its proper divisors (1).

2196731 is an equidigital number, since it uses as much as digits as its factorization.

2196731 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2268, while the sum is 29.

The square root of 2196731 is about 1482.1373080791. The cubic root of 2196731 is about 129.9946940635.

The spelling of 2196731 in words is "two million, one hundred ninety-six thousand, seven hundred thirty-one".