Search a number
-
+
130759 = 229571
BaseRepresentation
bin11111111011000111
320122100221
4133323013
513141014
62445211
71053136
oct377307
9218327
10130759
118a272
1263807
1347695
143591d
1528b24
hex1fec7

130759 has 4 divisors (see below), whose sum is σ = 131560. Its totient is φ = 129960.

The previous prime is 130729. The next prime is 130769. The reversal of 130759 is 957031.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 130759 - 27 = 130631 is a prime.

It is a Duffinian number.

130759 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130729) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 57 + ... + 514.

It is an arithmetic number, because the mean of its divisors is an integer number (32890).

2130759 is an apocalyptic number.

130759 is the 229-th heptagonal number.

130759 is a deficient number, since it is larger than the sum of its proper divisors (801).

130759 is an equidigital number, since it uses as much as digits as its factorization.

130759 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 800.

The product of its (nonzero) digits is 945, while the sum is 25.

The square root of 130759 is about 361.6061393284. The cubic root of 130759 is about 50.7563671467.

The spelling of 130759 in words is "one hundred thirty thousand, seven hundred fifty-nine".

Divisors: 1 229 571 130759