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131234 = 265617
BaseRepresentation
bin100000000010100010
320200000112
4200002202
513144414
62451322
71054415
oct400242
9220015
10131234
118a664
1263b42
134796c
1435b7c
1528d3e
hex200a2

131234 has 4 divisors (see below), whose sum is σ = 196854. Its totient is φ = 65616.

The previous prime is 131231. The next prime is 131249. The reversal of 131234 is 432131.

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

It can be written as a sum of positive squares in only one way, i.e., 70225 + 61009 = 265^2 + 247^2 .

It is an Ulam number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32807 + ... + 32810.

2131234 is an apocalyptic number.

131234 is a deficient number, since it is larger than the sum of its proper divisors (65620).

131234 is an equidigital number, since it uses as much as digits as its factorization.

131234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65619.

The product of its digits is 72, while the sum is 14.

The square root of 131234 is about 362.2623358838. The cubic root of 131234 is about 50.8177526976.

Adding to 131234 its reverse (432131), we get a palindrome (563365).

The spelling of 131234 in words is "one hundred thirty-one thousand, two hundred thirty-four".

Divisors: 1 2 65617 131234