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545145133 = 13191241911
BaseRepresentation
bin100000011111100…
…100000100101101
31101222210020112111
4200133210010231
52104024121013
6130032204021
716336441261
oct4037440455
91358706474
10545145133
1125a7a1675
12132699611
1388c307b0
14525880a1
1532cd473d
hex207e412d

545145133 has 16 divisors (see below), whose sum is σ = 593252352. Its totient is φ = 497952000.

The previous prime is 545145101. The next prime is 545145157. The reversal of 545145133 is 331541545.

It is not a de Polignac number, because 545145133 - 25 = 545145101 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 545145095 and 545145104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (545145163) 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, 597948 + ... + 598858.

It is an arithmetic number, because the mean of its divisors is an integer number (37078272).

Almost surely, 2545145133 is an apocalyptic number.

It is an amenable number.

545145133 is a deficient number, since it is larger than the sum of its proper divisors (48107219).

545145133 is a wasteful number, since it uses less digits than its factorization.

545145133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1356.

The product of its digits is 18000, while the sum is 31.

The square root of 545145133 is about 23348.3432602829. The cubic root of 545145133 is about 816.9034177031.

Adding to 545145133 its reverse (331541545), we get a palindrome (876686678).

The spelling of 545145133 in words is "five hundred forty-five million, one hundred forty-five thousand, one hundred thirty-three".

Divisors: 1 13 191 241 911 2483 3133 11843 46031 174001 219551 598403 2262013 2854163 41934241 545145133