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133208 = 2316651
BaseRepresentation
bin100000100001011000
320202201122
4200201120
513230313
62504412
71063235
oct404130
9222648
10133208
1191099
1265108
134882a
143678c
1529708
hex20858

133208 has 8 divisors (see below), whose sum is σ = 249780. Its totient is φ = 66600.

The previous prime is 133201. The next prime is 133213. The reversal of 133208 is 802331.

It is a tau number, because it is divible by the number of its divisors (8).

It is a plaindrome in base 14.

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 133208.

It is not an unprimeable number, because it can be changed into a prime (133201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8318 + ... + 8333.

2133208 is an apocalyptic number.

It is an amenable number.

133208 is a deficient number, since it is larger than the sum of its proper divisors (116572).

133208 is a wasteful number, since it uses less digits than its factorization.

133208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16657 (or 16653 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 133208 is about 364.9767115858. The cubic root of 133208 is about 51.0712831221.

Adding to 133208 its sum of digits (17), we get a square (133225 = 3652).

Adding to 133208 its reverse (802331), we get a palindrome (935539).

The spelling of 133208 in words is "one hundred thirty-three thousand, two hundred eight".

Divisors: 1 2 4 8 16651 33302 66604 133208