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130019 = 235653
BaseRepresentation
bin11111101111100011
320121100112
4133233203
513130034
62441535
71051031
oct375743
9217315
10130019
118975a
12632ab
1347246
1435551
15287ce
hex1fbe3

130019 has 4 divisors (see below), whose sum is σ = 135696. Its totient is φ = 124344.

The previous prime is 130003. The next prime is 130021. The reversal of 130019 is 910031.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 130019 - 24 = 130003 is a prime.

It is a super-2 number, since 2×1300192 = 33809880722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 129985 and 130012.

It is not an unprimeable number, because it can be changed into a prime (130069) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2804 + ... + 2849.

It is an arithmetic number, because the mean of its divisors is an integer number (33924).

2130019 is an apocalyptic number.

130019 is a deficient number, since it is larger than the sum of its proper divisors (5677).

130019 is an equidigital number, since it uses as much as digits as its factorization.

130019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5676.

The product of its (nonzero) digits is 27, while the sum is 14.

The square root of 130019 is about 360.5814748431. The cubic root of 130019 is about 50.6604380232.

The spelling of 130019 in words is "one hundred thirty thousand, nineteen".

Divisors: 1 23 5653 130019