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130505 = 543607
BaseRepresentation
bin11111110111001001
320122000112
4133313021
513134010
62444105
71052324
oct376711
9218015
10130505
118a061
1263635
134752b
14357bb
1528a05
hex1fdc9

130505 has 8 divisors (see below), whose sum is σ = 160512. Its totient is φ = 101808.

The previous prime is 130489. The next prime is 130513. The reversal of 130505 is 505031.

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

It is a cyclic number.

It is not a de Polignac number, because 130505 - 24 = 130489 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a plaindrome in base 14.

It is a self number, because there is not a number n which added to its sum of digits gives 130505.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 89 + ... + 518.

It is an arithmetic number, because the mean of its divisors is an integer number (20064).

2130505 is an apocalyptic number.

It is an amenable number.

130505 is a deficient number, since it is larger than the sum of its proper divisors (30007).

130505 is an equidigital number, since it uses as much as digits as its factorization.

130505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 655.

The product of its (nonzero) digits is 75, while the sum is 14.

The square root of 130505 is about 361.2547577541. The cubic root of 130505 is about 50.7234810128.

Adding to 130505 its reverse (505031), we get a palindrome (635536).

The spelling of 130505 in words is "one hundred thirty thousand, five hundred five".

Divisors: 1 5 43 215 607 3035 26101 130505