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54089 = 77727
BaseRepresentation
bin1101001101001001
32202012022
431031021
53212324
61054225
7313460
oct151511
982168
1054089
1137702
1227375
131b809
14159d7
151105e
hexd349

54089 has 4 divisors (see below), whose sum is σ = 61824. Its totient is φ = 46356.

The previous prime is 54083. The next prime is 54091. The reversal of 54089 is 98045.

54089 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 98045 = 519609.

It is a cyclic number.

It is not a de Polignac number, because 54089 - 212 = 49993 is a prime.

It is an Ulam number.

It is a Curzon number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 54089.

It is not an unprimeable number, because it can be changed into a prime (54083) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3857 + ... + 3870.

It is an arithmetic number, because the mean of its divisors is an integer number (15456).

254089 is an apocalyptic number.

It is an amenable number.

54089 is a deficient number, since it is larger than the sum of its proper divisors (7735).

54089 is an equidigital number, since it uses as much as digits as its factorization.

54089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7734.

The product of its (nonzero) digits is 1440, while the sum is 26.

The square root of 54089 is about 232.5704194432. The cubic root of 54089 is about 37.8183854646.

Subtracting 54089 from its reverse (98045), we obtain a triangular number (43956 = T296).

The spelling of 54089 in words is "fifty-four thousand, eighty-nine".

Divisors: 1 7 7727 54089