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130493 = 1111863
BaseRepresentation
bin11111110110111101
320122000002
4133312331
513133433
62444045
71052306
oct376675
9218002
10130493
118a050
1263625
134751c
14357ad
15289e8
hex1fdbd

130493 has 4 divisors (see below), whose sum is σ = 142368. Its totient is φ = 118620.

The previous prime is 130489. The next prime is 130513. The reversal of 130493 is 394031.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 130493 - 22 = 130489 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a Curzon number.

It is a plaindrome in base 14.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 130493.

It is not an unprimeable number, because it can be changed into a prime (130423) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5921 + ... + 5942.

It is an arithmetic number, because the mean of its divisors is an integer number (35592).

2130493 is an apocalyptic number.

It is an amenable number.

130493 is a deficient number, since it is larger than the sum of its proper divisors (11875).

130493 is a wasteful number, since it uses less digits than its factorization.

130493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11874.

The product of its (nonzero) digits is 324, while the sum is 20.

The square root of 130493 is about 361.2381485945. The cubic root of 130493 is about 50.7219262820.

The spelling of 130493 in words is "one hundred thirty thousand, four hundred ninety-three".

Divisors: 1 11 11863 130493