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54309 = 343421
BaseRepresentation
bin1101010000100101
32202111110
431100211
53214214
61055233
7314223
oct152045
982443
1054309
1137892
1227519
131b948
1415b13
1511159
hexd425

54309 has 8 divisors (see below), whose sum is σ = 74272. Its totient is φ = 35280.

The previous prime is 54293. The next prime is 54311. The reversal of 54309 is 90345.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 54309 - 24 = 54293 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

54309 is a lucky number.

It is a plaindrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54319) 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 7 ways as a sum of consecutive naturals, for example, 82 + ... + 339.

It is an arithmetic number, because the mean of its divisors is an integer number (9284).

254309 is an apocalyptic number.

It is an amenable number.

54309 is a deficient number, since it is larger than the sum of its proper divisors (19963).

54309 is a wasteful number, since it uses less digits than its factorization.

54309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 467.

The product of its (nonzero) digits is 540, while the sum is 21.

The square root of 54309 is about 233.0429145029. The cubic root of 54309 is about 37.8695898992.

It can be divided in two parts, 54 and 309, that added together give a palindrome (363).

The spelling of 54309 in words is "fifty-four thousand, three hundred nine".

Divisors: 1 3 43 129 421 1263 18103 54309