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168233 = 1312941
BaseRepresentation
bin101001000100101001
322112202212
4221010221
520340413
63334505
71300322
oct510451
9275685
10168233
1110543a
1281435
135b760
1445449
1534ca8
hex29129

168233 has 4 divisors (see below), whose sum is σ = 181188. Its totient is φ = 155280.

The previous prime is 168227. The next prime is 168247. The reversal of 168233 is 332861.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 332861 = 1917519.

It can be written as a sum of positive squares in 2 ways, for example, as 73984 + 94249 = 272^2 + 307^2 .

It is a cyclic number.

It is not a de Polignac number, because 168233 - 214 = 151849 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 168199 and 168208.

It is not an unprimeable number, because it can be changed into a prime (168253) 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 3 ways as a sum of consecutive naturals, for example, 6458 + ... + 6483.

It is an arithmetic number, because the mean of its divisors is an integer number (45297).

2168233 is an apocalyptic number.

168233 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

168233 is a deficient number, since it is larger than the sum of its proper divisors (12955).

168233 is a wasteful number, since it uses less digits than its factorization.

168233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12954.

The product of its digits is 864, while the sum is 23.

The square root of 168233 is about 410.1621630526. The cubic root of 168233 is about 55.2039808443.

The spelling of 168233 in words is "one hundred sixty-eight thousand, two hundred thirty-three".

Divisors: 1 13 12941 168233