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130913 = 3141103
BaseRepresentation
bin11111111101100001
320122120122
4133331201
513142123
62450025
71053446
oct377541
9218518
10130913
118a3a2
1263915
1347783
14359cd
1528bc8
hex1ff61

130913 has 8 divisors (see below), whose sum is σ = 139776. Its totient is φ = 122400.

The previous prime is 130873. The next prime is 130927. The reversal of 130913 is 319031.

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 130913 - 28 = 130657 is a prime.

It is a Duffinian number.

It is a plaindrome in base 14.

It is a junction number, because it is equal to n+sod(n) for n = 130891 and 130900.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130973) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1220 + ... + 1322.

It is an arithmetic number, because the mean of its divisors is an integer number (17472).

2130913 is an apocalyptic number.

It is an amenable number.

130913 is a deficient number, since it is larger than the sum of its proper divisors (8863).

130913 is a wasteful number, since it uses less digits than its factorization.

130913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175.

The product of its (nonzero) digits is 81, while the sum is 17.

The square root of 130913 is about 361.8190155312. The cubic root of 130913 is about 50.7762852503.

Adding to 130913 its reverse (319031), we get a palindrome (449944).

The spelling of 130913 in words is "one hundred thirty thousand, nine hundred thirteen".

Divisors: 1 31 41 103 1271 3193 4223 130913