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131466 = 2321911
BaseRepresentation
bin100000000110001010
320200100010
4200012022
513201331
62452350
71055166
oct400612
9220303
10131466
118a855
12640b6
1347aba
1435ca6
1528e46
hex2018a

131466 has 8 divisors (see below), whose sum is σ = 262944. Its totient is φ = 43820.

The previous prime is 131449. The next prime is 131477. The reversal of 131466 is 664131.

It is a sphenic number, since it is the product of 3 distinct primes.

131466 is an admirable number.

It is an unprimeable number.

131466 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

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, 10950 + ... + 10961.

It is an arithmetic number, because the mean of its divisors is an integer number (32868).

2131466 is an apocalyptic number.

131466 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

131466 is a wasteful number, since it uses less digits than its factorization.

131466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21916.

The product of its digits is 432, while the sum is 21.

The square root of 131466 is about 362.5824044269. The cubic root of 131466 is about 50.8476808615.

Adding to 131466 its reverse (664131), we get a palindrome (795597).

The spelling of 131466 in words is "one hundred thirty-one thousand, four hundred sixty-six".

Divisors: 1 2 3 6 21911 43822 65733 131466