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545405141 = 2323713267
BaseRepresentation
bin100000100000100…
…011100011010101
31102000021110012102
4200200203203111
52104110431031
6130041531445
716341603311
oct4040434325
91360243172
10545405141
1125a959a56
121327a3b85
1388cc1c48
1452614b41
1532d367cb
hex208238d5

545405141 has 4 divisors (see below), whose sum is σ = 569118432. Its totient is φ = 521691852.

The previous prime is 545405111. The next prime is 545405167. The reversal of 545405141 is 141504545.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 545405141 - 214 = 545388757 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (545405111) 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, 11856611 + ... + 11856656.

It is an arithmetic number, because the mean of its divisors is an integer number (142279608).

Almost surely, 2545405141 is an apocalyptic number.

It is an amenable number.

545405141 is a deficient number, since it is larger than the sum of its proper divisors (23713291).

545405141 is a wasteful number, since it uses less digits than its factorization.

545405141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23713290.

The product of its (nonzero) digits is 8000, while the sum is 29.

The square root of 545405141 is about 23353.9106147129. The cubic root of 545405141 is about 817.0332716028.

Adding to 545405141 its reverse (141504545), we get a palindrome (686909686).

The spelling of 545405141 in words is "five hundred forty-five million, four hundred five thousand, one hundred forty-one".

Divisors: 1 23 23713267 545405141