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130373 = 177669
BaseRepresentation
bin11111110101000101
320121211122
4133311011
513132443
62443325
71052045
oct376505
9217748
10130373
1189a51
1263545
1347459
1435725
1528968
hex1fd45

130373 has 4 divisors (see below), whose sum is σ = 138060. Its totient is φ = 122688.

The previous prime is 130369. The next prime is 130379. The reversal of 130373 is 373031.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 373031 = 1721943.

It can be written as a sum of positive squares in 2 ways, for example, as 114244 + 16129 = 338^2 + 127^2 .

It is a cyclic number.

It is not a de Polignac number, because 130373 - 22 = 130369 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17), and also a Moran number because the ratio is a prime number: 7669 = 130373 / (1 + 3 + 0 + 3 + 7 + 3).

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130379) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3818 + ... + 3851.

It is an arithmetic number, because the mean of its divisors is an integer number (34515).

2130373 is an apocalyptic number.

It is an amenable number.

130373 is a deficient number, since it is larger than the sum of its proper divisors (7687).

130373 is an equidigital number, since it uses as much as digits as its factorization.

130373 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7686.

The product of its (nonzero) digits is 189, while the sum is 17.

The square root of 130373 is about 361.0720149776. The cubic root of 130373 is about 50.7063737291.

The spelling of 130373 in words is "one hundred thirty thousand, three hundred seventy-three".

Divisors: 1 17 7669 130373