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132811 = 718973
BaseRepresentation
bin100000011011001011
320202011221
4200123023
513222221
62502511
71062130
oct403313
9222157
10132811
1190868
1264a37
13485b3
1436587
1529541
hex206cb

132811 has 4 divisors (see below), whose sum is σ = 151792. Its totient is φ = 113832.

The previous prime is 132763. The next prime is 132817. The reversal of 132811 is 118231.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 118231 = 137863.

It is a cyclic number.

It is not a de Polignac number, because 132811 - 29 = 132299 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (132817) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9480 + ... + 9493.

It is an arithmetic number, because the mean of its divisors is an integer number (37948).

2132811 is an apocalyptic number.

132811 is a deficient number, since it is larger than the sum of its proper divisors (18981).

132811 is an equidigital number, since it uses as much as digits as its factorization.

132811 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18980.

The product of its digits is 48, while the sum is 16.

The square root of 132811 is about 364.4324354390. The cubic root of 132811 is about 51.0204966954.

The spelling of 132811 in words is "one hundred thirty-two thousand, eight hundred eleven".

Divisors: 1 7 18973 132811