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206493 = 379833
BaseRepresentation
bin110010011010011101
3101111020220
4302122131
523101433
64231553
71520010
oct623235
9344226
10206493
11131161
129b5b9
1372cb1
1455377
15412b3
hex3269d

206493 has 8 divisors (see below), whose sum is σ = 314688. Its totient is φ = 117984.

The previous prime is 206489. The next prime is 206501. The reversal of 206493 is 394602.

206493 is nontrivially palindromic in base 12.

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

It is not a de Polignac number, because 206493 - 22 = 206489 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (206413) 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, 4896 + ... + 4937.

It is an arithmetic number, because the mean of its divisors is an integer number (39336).

2206493 is an apocalyptic number.

It is an amenable number.

206493 is a deficient number, since it is larger than the sum of its proper divisors (108195).

206493 is an equidigital number, since it uses as much as digits as its factorization.

206493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9843.

The product of its (nonzero) digits is 1296, while the sum is 24.

The square root of 206493 is about 454.4150085550. The cubic root of 206493 is about 59.1064820350.

The spelling of 206493 in words is "two hundred six thousand, four hundred ninety-three".

Divisors: 1 3 7 21 9833 29499 68831 206493