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130479 = 3233161
BaseRepresentation
bin11111110110101111
320121222120
4133312233
513133404
62444023
71052256
oct376657
9217876
10130479
118a038
1263613
134750b
143579d
15289d9
hex1fdaf

130479 has 16 divisors (see below), whose sum is σ = 190464. Its totient is φ = 79200.

The previous prime is 130477. The next prime is 130483. The reversal of 130479 is 974031.

It is not a de Polignac number, because 130479 - 21 = 130477 is a prime.

It is a plaindrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130477) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2109 + ... + 2169.

It is an arithmetic number, because the mean of its divisors is an integer number (11904).

2130479 is an apocalyptic number.

130479 is a deficient number, since it is larger than the sum of its proper divisors (59985).

130479 is a wasteful number, since it uses less digits than its factorization.

130479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118.

The product of its (nonzero) digits is 756, while the sum is 24.

The square root of 130479 is about 361.2187702764. The cubic root of 130479 is about 50.7201123089.

The spelling of 130479 in words is "one hundred thirty thousand, four hundred seventy-nine".

Divisors: 1 3 23 31 61 69 93 183 713 1403 1891 2139 4209 5673 43493 130479