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54893281 = 3122392
BaseRepresentation
bin1101000101100…
…1101011100001
310211021212102111
43101121223201
5103023041111
65240315321
71234404502
oct321315341
9124255374
1054893281
1128a93153
1216472b41
13b4ac741
14740cba9
154c44a21
hex3459ae1

54893281 has 9 divisors (see below), whose sum is σ = 56959473. Its totient is φ = 52900260.

The previous prime is 54893273. The next prime is 54893303. The reversal of 54893281 is 18239845.

The square root of 54893281 is 7409.

It is a perfect power (a square), and thus also a powerful number.

54893281 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 54893281 - 23 = 54893273 is a prime.

It is a super-2 number, since 2×548932812 = 6026544597889922, which contains 22 as substring.

It is a Duffinian number.

Its product of digits (69120) is a multiple of the sum of its prime divisors (270).

It is not an unprimeable number, because it can be changed into a prime (54893581) 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 8 ways as a sum of consecutive naturals, for example, 229560 + ... + 229798.

Almost surely, 254893281 is an apocalyptic number.

54893281 is the 7409-th square number.

54893281 is the 3705-th centered octagonal number.

It is an amenable number.

54893281 is a deficient number, since it is larger than the sum of its proper divisors (2066192).

54893281 is an frugal number, since it uses more digits than its factorization.

54893281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 540 (or 270 counting only the distinct ones).

The product of its digits is 69120, while the sum is 40.

The cubic root of 54893281 is about 380.0491187661.

The spelling of 54893281 in words is "fifty-four million, eight hundred ninety-three thousand, two hundred eighty-one".

Divisors: 1 31 239 961 7409 57121 229679 1770751 54893281