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131386 = 2179367
BaseRepresentation
bin100000000100111010
320200020011
4200010322
513201021
62452134
71055023
oct400472
9220204
10131386
118a792
126404a
1347a58
1435c4a
1528de1
hex2013a

131386 has 8 divisors (see below), whose sum is σ = 198720. Its totient is φ = 65148.

The previous prime is 131381. The next prime is 131413. The reversal of 131386 is 683131.

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

It is not an unprimeable number, because it can be changed into a prime (131381) 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, 175 + ... + 541.

It is an arithmetic number, because the mean of its divisors is an integer number (24840).

2131386 is an apocalyptic number.

131386 is a deficient number, since it is larger than the sum of its proper divisors (67334).

131386 is a wasteful number, since it uses less digits than its factorization.

131386 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 548.

The product of its digits is 432, while the sum is 22.

The square root of 131386 is about 362.4720678894. The cubic root of 131386 is about 50.8373647852.

The spelling of 131386 in words is "one hundred thirty-one thousand, three hundred eighty-six".

Divisors: 1 2 179 358 367 734 65693 131386