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540565045 = 5671978191
BaseRepresentation
bin100000001110000…
…101111000110101
31101200011112211121
4200032011320311
52101341040140
6125350103541
716252504246
oct4016057065
91350145747
10540565045
11258153579
1213104abb1
1387cb8b97
1451b14ccd
15326cc64a
hex20385e35

540565045 has 16 divisors (see below), whose sum is σ = 661782528. Its totient is φ = 423783360.

The previous prime is 540565043. The next prime is 540565049.

540565045 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 540565045 - 21 = 540565043 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 540565045.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (540565043) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 61900 + ... + 70090.

It is an arithmetic number, because the mean of its divisors is an integer number (41361408).

Almost surely, 2540565045 is an apocalyptic number.

It is an amenable number.

540565045 is a deficient number, since it is larger than the sum of its proper divisors (121217483).

540565045 is a wasteful number, since it uses less digits than its factorization.

540565045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8460.

The product of its (nonzero) digits is 60000, while the sum is 34.

The square root of 540565045 is about 23250.0547311184. The cubic root of 540565045 is about 814.6092170979.

Subtracting from 540565045 its product of nonzero digits (60000), we obtain a palindrome (540505045).

The spelling of 540565045 in words is "five hundred forty million, five hundred sixty-five thousand, forty-five".

Divisors: 1 5 67 197 335 985 8191 13199 40955 65995 548797 1613627 2743985 8068135 108113009 540565045