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54549045 = 3453672
BaseRepresentation
bin1101000000010…
…1101000110101
310210122101020000
43100011220311
5102431032140
65225101513
71231442055
oct320055065
9123571200
1054549045
1128878561
1216327899
13b3bbb55
14735d565
154bc7a30
hex3405a35

54549045 has 30 divisors (see below), whose sum is σ = 98051382. Its totient is φ = 29013552.

The previous prime is 54549023. The next prime is 54549059. The reversal of 54549045 is 54094545.

It can be written as a sum of positive squares in only one way, i.e., 43639236 + 10909809 = 6606^2 + 3303^2 .

It is not a de Polignac number, because 54549045 - 25 = 54549013 is a prime.

It is a congruent number.

It is an unprimeable number.

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 29 ways as a sum of consecutive naturals, for example, 148452 + ... + 148818.

Almost surely, 254549045 is an apocalyptic number.

It is an amenable number.

54549045 is a deficient number, since it is larger than the sum of its proper divisors (43502337).

54549045 is an frugal number, since it uses more digits than its factorization.

54549045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 751 (or 375 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 36.

The square root of 54549045 is about 7385.7325296818. The cubic root of 54549045 is about 379.2530224487.

Multiplying 54549045 by its product of nonzero digits (72000), we get a square (3927531240000 = 19818002).

The spelling of 54549045 in words is "fifty-four million, five hundred forty-nine thousand, forty-five".

Divisors: 1 3 5 9 15 27 45 81 135 367 405 1101 1835 3303 5505 9909 16515 29727 49545 134689 148635 404067 673445 1212201 2020335 3636603 6061005 10909809 18183015 54549045