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54489128 = 236811141
BaseRepresentation
bin1100111111011…
…1000000101000
310210112100000212
43033313000220
5102422123003
65223520252
71231102301
oct317670050
9123470025
1054489128
1128837541
12162b9088
13b39a7b5
1473457a8
154bb4dd8
hex33f7028

54489128 has 8 divisors (see below), whose sum is σ = 102167130. Its totient is φ = 27244560.

The previous prime is 54489109. The next prime is 54489137. The reversal of 54489128 is 82198445.

54489128 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 33895684 + 20593444 = 5822^2 + 4538^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 3405563 + ... + 3405578.

Almost surely, 254489128 is an apocalyptic number.

It is an amenable number.

54489128 is a deficient number, since it is larger than the sum of its proper divisors (47678002).

54489128 is a wasteful number, since it uses less digits than its factorization.

54489128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6811147 (or 6811143 counting only the distinct ones).

The product of its digits is 92160, while the sum is 41.

The square root of 54489128 is about 7381.6751486367. The cubic root of 54489128 is about 379.1141136412.

The spelling of 54489128 in words is "fifty-four million, four hundred eighty-nine thousand, one hundred twenty-eight".

Divisors: 1 2 4 8 6811141 13622282 27244564 54489128