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132481 = 177793
BaseRepresentation
bin100000010110000001
320201201201
4200112001
513214411
62501201
71061146
oct402601
9221651
10132481
1190598
1264801
13483bb
14363cd
15293c1
hex20581

132481 has 4 divisors (see below), whose sum is σ = 140292. Its totient is φ = 124672.

The previous prime is 132469. The next prime is 132491. The reversal of 132481 is 184231.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 119025 + 13456 = 345^2 + 116^2 .

It is a cyclic number.

It is not a de Polignac number, because 132481 - 29 = 131969 is a prime.

It is a super-2 number, since 2×1324812 = 35102430722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (132421) 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 in 3 ways as a sum of consecutive naturals, for example, 3880 + ... + 3913.

It is an arithmetic number, because the mean of its divisors is an integer number (35073).

2132481 is an apocalyptic number.

It is an amenable number.

132481 is a deficient number, since it is larger than the sum of its proper divisors (7811).

132481 is an equidigital number, since it uses as much as digits as its factorization.

132481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7810.

The product of its digits is 192, while the sum is 19.

The square root of 132481 is about 363.9793950212. The cubic root of 132481 is about 50.9782041941.

The spelling of 132481 in words is "one hundred thirty-two thousand, four hundred eighty-one".

Divisors: 1 17 7793 132481