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54889360 = 245686117
BaseRepresentation
bin1101000101100…
…0101110010000
310211021200001021
43101120232100
5103022424420
65240245224
71234360201
oct321305620
9124250037
1054889360
1128a90209
1216470814
13b4aaa16
14740b5a8
154c437aa
hex3458b90

54889360 has 20 divisors (see below), whose sum is σ = 127617948. Its totient is φ = 21955712.

The previous prime is 54889343. The next prime is 54889361. The reversal of 54889360 is 6398845.

It can be written as a sum of positive squares in 2 ways, for example, as 32307856 + 22581504 = 5684^2 + 4752^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is not an unprimeable number, because it can be changed into a prime (54889361) 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, 342979 + ... + 343138.

Almost surely, 254889360 is an apocalyptic number.

It is an amenable number.

54889360 is an abundant number, since it is smaller than the sum of its proper divisors (72728588).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

54889360 is a wasteful number, since it uses less digits than its factorization.

54889360 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 686130 (or 686124 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 43.

The square root of 54889360 is about 7408.7353846659. The cubic root of 54889360 is about 380.0400696435.

The spelling of 54889360 in words is "fifty-four million, eight hundred eighty-nine thousand, three hundred sixty".

Divisors: 1 2 4 5 8 10 16 20 40 80 686117 1372234 2744468 3430585 5488936 6861170 10977872 13722340 27444680 54889360