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130198 = 265099
BaseRepresentation
bin11111110010010110
320121121011
4133302112
513131243
62442434
71051405
oct376226
9217534
10130198
1189902
126341a
1347353
143563c
152889d
hex1fc96

130198 has 4 divisors (see below), whose sum is σ = 195300. Its totient is φ = 65098.

The previous prime is 130183. The next prime is 130199. The reversal of 130198 is 891031.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 891031 = 1974523.

It is a plaindrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130199) 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 as a sum of consecutive naturals, namely, 32548 + ... + 32551.

It is an arithmetic number, because the mean of its divisors is an integer number (48825).

2130198 is an apocalyptic number.

130198 is a deficient number, since it is larger than the sum of its proper divisors (65102).

130198 is an equidigital number, since it uses as much as digits as its factorization.

130198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65101.

The product of its (nonzero) digits is 216, while the sum is 22.

The square root of 130198 is about 360.8295996728. The cubic root of 130198 is about 50.6836758067.

The spelling of 130198 in words is "one hundred thirty thousand, one hundred ninety-eight".

Divisors: 1 2 65099 130198