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131260 = 2256563
BaseRepresentation
bin100000000010111100
320200001111
4200002330
513200020
62451404
71054453
oct400274
9220044
10131260
118a688
1263b64
134798c
1435b9a
1528d5a
hex200bc

131260 has 12 divisors (see below), whose sum is σ = 275688. Its totient is φ = 52496.

The previous prime is 131251. The next prime is 131267. The reversal of 131260 is 62131.

131260 = T157 + T158 + ... + T166.

It is a zygodrome in base 9.

It is a self number, because there is not a number n which added to its sum of digits gives 131260.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131267) 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, 3262 + ... + 3301.

It is an arithmetic number, because the mean of its divisors is an integer number (22974).

2131260 is an apocalyptic number.

131260 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131260 is an abundant number, since it is smaller than the sum of its proper divisors (144428).

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

131260 is a wasteful number, since it uses less digits than its factorization.

131260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6572 (or 6570 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 131260 is about 362.2982197031. The cubic root of 131260 is about 50.8211084700.

Adding to 131260 its reverse (62131), we get a palindrome (193391).

The spelling of 131260 in words is "one hundred thirty-one thousand, two hundred sixty".

Divisors: 1 2 4 5 10 20 6563 13126 26252 32815 65630 131260