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2405071 is a prime number
BaseRepresentation
bin1001001011001011001111
311112012010201
421023023033
51103430241
6123314331
726304604
oct11131317
94465121
102405071
1113a2a69
1297b9a7
13662926
144686ab
15327931
hex24b2cf

2405071 has 2 divisors, whose sum is σ = 2405072. Its totient is φ = 2405070.

The previous prime is 2405069. The next prime is 2405089. The reversal of 2405071 is 1705042.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2405071 - 21 = 2405069 is a prime.

Together with 2405069, it forms a pair of twin primes.

2405071 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2405021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1202535 + 1202536.

It is an arithmetic number, because the mean of its divisors is an integer number (1202536).

22405071 is an apocalyptic number.

2405071 is a deficient number, since it is larger than the sum of its proper divisors (1).

2405071 is an equidigital number, since it uses as much as digits as its factorization.

2405071 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 280, while the sum is 19.

The square root of 2405071 is about 1550.8291330769. The cubic root of 2405071 is about 133.9808207495.

The spelling of 2405071 in words is "two million, four hundred five thousand, seventy-one".