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130879 = 722671
BaseRepresentation
bin11111111100111111
320122112101
4133330333
513142004
62445531
71053400
oct377477
9218471
10130879
118a371
12638a7
1347758
14359a7
1528ba4
hex1ff3f

130879 has 6 divisors (see below), whose sum is σ = 152304. Its totient is φ = 112140.

The previous prime is 130873. The next prime is 130927. The reversal of 130879 is 978031.

It is not a de Polignac number, because 130879 - 29 = 130367 is a prime.

It is a Duffinian number.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130873) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1287 + ... + 1384.

It is an arithmetic number, because the mean of its divisors is an integer number (25384).

2130879 is an apocalyptic number.

130879 is a deficient number, since it is larger than the sum of its proper divisors (21425).

130879 is an equidigital number, since it uses as much as digits as its factorization.

130879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2685 (or 2678 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 28.

The square root of 130879 is about 361.7720276638. The cubic root of 130879 is about 50.7718890911.

The spelling of 130879 in words is "one hundred thirty thousand, eight hundred seventy-nine".

Divisors: 1 7 49 2671 18697 130879