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5405305 = 51081061
BaseRepresentation
bin10100100111101001111001
3101011121200111
4110213221321
52340432210
6311504321
763641623
oct24475171
911147614
105405305
1130620a4
1219880a1
131173409
14a09c13
1571b88a
hex527a79

5405305 has 4 divisors (see below), whose sum is σ = 6486372. Its totient is φ = 4324240.

The previous prime is 5405287. The next prime is 5405327. The reversal of 5405305 is 5035045.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2832489 + 2572816 = 1683^2 + 1604^2 .

It is not a de Polignac number, because 5405305 - 211 = 5403257 is a prime.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

5405305 is a lucky number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 540526 + ... + 540535.

It is an arithmetic number, because the mean of its divisors is an integer number (1621593).

Almost surely, 25405305 is an apocalyptic number.

It is an amenable number.

5405305 is a deficient number, since it is larger than the sum of its proper divisors (1081067).

5405305 is a wasteful number, since it uses less digits than its factorization.

5405305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1081066.

The product of its (nonzero) digits is 1500, while the sum is 22.

The square root of 5405305 is about 2324.9311817772. The cubic root of 5405305 is about 175.4984970231.

The spelling of 5405305 in words is "five million, four hundred five thousand, three hundred five".

Divisors: 1 5 1081061 5405305