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131894 = 279421
BaseRepresentation
bin100000001100110110
320200220222
4200030312
513210034
62454342
71056350
oct401466
9220828
10131894
1190104
12643b2
1348059
14360d0
152912e
hex20336

131894 has 8 divisors (see below), whose sum is σ = 226128. Its totient is φ = 56520.

The previous prime is 131893. The next prime is 131899. The reversal of 131894 is 498131.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131891) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4697 + ... + 4724.

It is an arithmetic number, because the mean of its divisors is an integer number (28266).

2131894 is an apocalyptic number.

131894 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

131894 is a deficient number, since it is larger than the sum of its proper divisors (94234).

131894 is an equidigital number, since it uses as much as digits as its factorization.

131894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9430.

The product of its digits is 864, while the sum is 26.

The square root of 131894 is about 363.1721354950. The cubic root of 131894 is about 50.9028009004.

The spelling of 131894 in words is "one hundred thirty-one thousand, eight hundred ninety-four".

Divisors: 1 2 7 14 9421 18842 65947 131894