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54019 = 77717
BaseRepresentation
bin1101001100000011
32202002201
431030003
53212034
61054031
7313330
oct151403
982081
1054019
1137649
1227317
131b784
1415987
1511014
hexd303

54019 has 4 divisors (see below), whose sum is σ = 61744. Its totient is φ = 46296.

The previous prime is 54013. The next prime is 54037. The reversal of 54019 is 91045.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 54019 - 23 = 54011 is a prime.

It is a super-2 number, since 2×540192 = 5836104722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 53987 and 54005.

It is not an unprimeable number, because it can be changed into a prime (54011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3852 + ... + 3865.

It is an arithmetic number, because the mean of its divisors is an integer number (15436).

254019 is an apocalyptic number.

54019 is a deficient number, since it is larger than the sum of its proper divisors (7725).

54019 is an equidigital number, since it uses as much as digits as its factorization.

54019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7724.

The product of its (nonzero) digits is 180, while the sum is 19.

The square root of 54019 is about 232.4198786679. The cubic root of 54019 is about 37.8020640326.

The spelling of 54019 in words is "fifty-four thousand, nineteen".

Divisors: 1 7 7717 54019