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3240031 is a prime number
BaseRepresentation
bin1100010111000001011111
320002121111011
430113001133
51312140111
6153240051
736353104
oct14270137
96077434
103240031
111913313
121103027
138959a2
14604aab
15440021
hex31705f

3240031 has 2 divisors, whose sum is σ = 3240032. Its totient is φ = 3240030.

The previous prime is 3240019. The next prime is 3240037. The reversal of 3240031 is 1300423.

It is a strong prime.

It is an emirp because it is prime and its reverse (1300423) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3240031 - 215 = 3207263 is a prime.

It is a super-2 number, since 2×32400312 = 20995601761922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 3239993 and 3240020.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3240037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1620015 + 1620016.

It is an arithmetic number, because the mean of its divisors is an integer number (1620016).

Almost surely, 23240031 is an apocalyptic number.

3240031 is a deficient number, since it is larger than the sum of its proper divisors (1).

3240031 is an equidigital number, since it uses as much as digits as its factorization.

3240031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72, while the sum is 13.

The square root of 3240031 is about 1800.0086110905. The cubic root of 3240031 is about 147.9731963878.

Adding to 3240031 its reverse (1300423), we get a palindrome (4540454).

The spelling of 3240031 in words is "three million, two hundred forty thousand, thirty-one".