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540655 = 5108131
BaseRepresentation
bin10000011111111101111
31000110122021
42003333233
5114300110
615331011
74411153
oct2037757
91013567
10540655
1133a225
12220a67
1315c11b
14101063
15aa2da
hex83fef

540655 has 4 divisors (see below), whose sum is σ = 648792. Its totient is φ = 432520.

The previous prime is 540629. The next prime is 540677. The reversal of 540655 is 556045.

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

It is a de Polignac number, because none of the positive numbers 2k-540655 is a prime.

It is a Duffinian number.

540655 is a lucky number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54061 + ... + 54070.

It is an arithmetic number, because the mean of its divisors is an integer number (162198).

2540655 is an apocalyptic number.

540655 is a deficient number, since it is larger than the sum of its proper divisors (108137).

540655 is a wasteful number, since it uses less digits than its factorization.

540655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108136.

The product of its (nonzero) digits is 3000, while the sum is 25.

The square root of 540655 is about 735.2924588217. The cubic root of 540655 is about 81.4654400749.

The spelling of 540655 in words is "five hundred forty thousand, six hundred fifty-five".

Divisors: 1 5 108131 540655