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BaseRepresentation
bin111011101111
312020121
4323233
5110243
625411
714101
oct7357
95217
103823
112966
122267
131981
141571
1511ed
hexeef

3823 has 2 divisors, whose sum is σ = 3824. Its totient is φ = 3822.

The previous prime is 3821. The next prime is 3833. The reversal of 3823 is 3283.

It is a happy number.

It is a weak prime.

3823 is a truncatable prime.

It is a cyclic number.

It is not a de Polignac number, because 3823 - 21 = 3821 is a prime.

Together with 3821, it forms a pair of twin primes.

It is a plaindrome in base 12 and base 16.

It is a junction number, because it is equal to n+sod(n) for n = 3797 and 3806.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3821) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1911 + 1912.

It is an arithmetic number, because the mean of its divisors is an integer number (1912).

3823 is a deficient number, since it is larger than the sum of its proper divisors (1).

3823 is an equidigital number, since it uses as much as digits as its factorization.

3823 is an evil number, because the sum of its binary digits is even.

The product of its digits is 144, while the sum is 16.

The square root of 3823 is about 61.8304132284. The cubic root of 3823 is about 15.6363277856.

The spelling of 3823 in words is "three thousand, eight hundred twenty-three".