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106223 = 138171
BaseRepresentation
bin11001111011101111
312101201012
4121323233
511344343
62135435
7621455
oct317357
9171635
10106223
1172897
125157b
1339470
142a9d5
1521718
hex19eef

106223 has 4 divisors (see below), whose sum is σ = 114408. Its totient is φ = 98040.

The previous prime is 106219. The next prime is 106243. The reversal of 106223 is 322601.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 322601 = 1916979.

It is a cyclic number.

It is not a de Polignac number, because 106223 - 22 = 106219 is a prime.

It is a super-2 number, since 2×1062232 = 22566651458, which contains 22 as substring.

It is a Duffinian number.

It is a plaindrome in base 16.

It is a junction number, because it is equal to n+sod(n) for n = 106198 and 106207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (106213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4073 + ... + 4098.

It is an arithmetic number, because the mean of its divisors is an integer number (28602).

2106223 is an apocalyptic number.

106223 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

106223 is a deficient number, since it is larger than the sum of its proper divisors (8185).

106223 is an equidigital number, since it uses as much as digits as its factorization.

106223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8184.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 106223 is about 325.9187015193. The cubic root of 106223 is about 47.3593995598.

Adding to 106223 its reverse (322601), we get a palindrome (428824).

The spelling of 106223 in words is "one hundred six thousand, two hundred twenty-three".

Divisors: 1 13 8171 106223