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540331 = 1149121
BaseRepresentation
bin10000011111010101011
31000110012021
42003322223
5114242311
615325311
74410211
oct2037253
91013167
10540331
11339a60
12220837
1315bc2c
14100cb1
15aa171
hex83eab

540331 has 4 divisors (see below), whose sum is σ = 589464. Its totient is φ = 491200.

The previous prime is 540307. The next prime is 540343. The reversal of 540331 is 133045.

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

It is a cyclic number.

It is not a de Polignac number, because 540331 - 27 = 540203 is a prime.

It is a super-2 number, since 2×5403312 = 583915179122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (540301) 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 in 3 ways as a sum of consecutive naturals, for example, 24550 + ... + 24571.

It is an arithmetic number, because the mean of its divisors is an integer number (147366).

2540331 is an apocalyptic number.

540331 is a deficient number, since it is larger than the sum of its proper divisors (49133).

540331 is a wasteful number, since it uses less digits than its factorization.

540331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49132.

The product of its (nonzero) digits is 180, while the sum is 16.

The square root of 540331 is about 735.0721053067. The cubic root of 540331 is about 81.4491634741.

Adding to 540331 its reverse (133045), we get a palindrome (673376).

The spelling of 540331 in words is "five hundred forty thousand, three hundred thirty-one".

Divisors: 1 11 49121 540331