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133384 = 2316673
BaseRepresentation
bin100000100100001000
320202222011
4200210020
513232014
62505304
71063606
oct404410
9222864
10133384
1191239
1265234
1348934
1436876
15297c4
hex20908

133384 has 8 divisors (see below), whose sum is σ = 250110. Its totient is φ = 66688.

The previous prime is 133379. The next prime is 133387. The reversal of 133384 is 483331.

It can be written as a sum of positive squares in only one way, i.e., 84100 + 49284 = 290^2 + 222^2 .

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133387) by changing a digit.

133384 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8329 + ... + 8344.

2133384 is an apocalyptic number.

It is an amenable number.

133384 is a deficient number, since it is larger than the sum of its proper divisors (116726).

133384 is a wasteful number, since it uses less digits than its factorization.

133384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16679 (or 16675 counting only the distinct ones).

The product of its digits is 864, while the sum is 22.

The square root of 133384 is about 365.2177432711. The cubic root of 133384 is about 51.0937657308.

The spelling of 133384 in words is "one hundred thirty-three thousand, three hundred eighty-four".

Divisors: 1 2 4 8 16673 33346 66692 133384