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8493 = 319149
BaseRepresentation
bin10000100101101
3102122120
42010231
5232433
6103153
733522
oct20455
912576
108493
116421
124ab9
133b34
143149
1527b3
hex212d

8493 has 8 divisors (see below), whose sum is σ = 12000. Its totient is φ = 5328.

The previous prime is 8467. The next prime is 8501. The reversal of 8493 is 3948.

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

It is not a de Polignac number, because 8493 - 25 = 8461 is a prime.

It is a Curzon number.

8493 is a lucky number.

It is a nialpdrome in base 11.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 8493.

It is not an unprimeable number, because it can be changed into a prime (8423) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18 + ... + 131.

It is an arithmetic number, because the mean of its divisors is an integer number (1500).

28493 is an apocalyptic number.

It is an amenable number.

8493 is a deficient number, since it is larger than the sum of its proper divisors (3507).

8493 is a wasteful number, since it uses less digits than its factorization.

8493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171.

The product of its digits is 864, while the sum is 24.

The square root of 8493 is about 92.1574739237. The cubic root of 8493 is about 20.4026716993.

The spelling of 8493 in words is "eight thousand, four hundred ninety-three".

Divisors: 1 3 19 57 149 447 2831 8493