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540229 = 5310193
BaseRepresentation
bin10000011111001000101
31000110001111
42003321011
5114241404
615325021
74410004
oct2037105
91013044
10540229
11339978
12220771
1315bb81
14100c3b
15aa104
hex83e45

540229 has 4 divisors (see below), whose sum is σ = 550476. Its totient is φ = 529984.

The previous prime is 540217. The next prime is 540233. The reversal of 540229 is 922045.

540229 = 122 + 132 + ... + 1172.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 922045 = 5184409.

It can be written as a sum of positive squares in 2 ways, for example, as 388129 + 152100 = 623^2 + 390^2 .

It is a cyclic number.

It is not a de Polignac number, because 540229 - 27 = 540101 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 an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (540269) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5044 + ... + 5149.

It is an arithmetic number, because the mean of its divisors is an integer number (137619).

2540229 is an apocalyptic number.

It is an amenable number.

540229 is a deficient number, since it is larger than the sum of its proper divisors (10247).

540229 is a wasteful number, since it uses less digits than its factorization.

540229 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10246.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 540229 is about 735.0027210834. The cubic root of 540229 is about 81.4440380124. Note that the first 3 decimals are identical.

The spelling of 540229 in words is "five hundred forty thousand, two hundred twenty-nine".

Divisors: 1 53 10193 540229