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130006 = 265003
BaseRepresentation
bin11111101111010110
320121100001
4133233112
513130011
62441514
71051012
oct375726
9217301
10130006
1189748
126329a
1347236
1435542
15287c1
hex1fbd6

130006 has 4 divisors (see below), whose sum is σ = 195012. Its totient is φ = 65002.

The previous prime is 130003. The next prime is 130021. The reversal of 130006 is 600031.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 600031 = 1673593.

It is a junction number, because it is equal to n+sod(n) for n = 129974 and 130001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130003) 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 as a sum of consecutive naturals, namely, 32500 + ... + 32503.

It is an arithmetic number, because the mean of its divisors is an integer number (48753).

2130006 is an apocalyptic number.

130006 is a deficient number, since it is larger than the sum of its proper divisors (65006).

130006 is an equidigital number, since it uses as much as digits as its factorization.

130006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65005.

The product of its (nonzero) digits is 18, while the sum is 10.

The square root of 130006 is about 360.5634479533. The cubic root of 130006 is about 50.6587495324.

Adding to 130006 its reverse (600031), we get a palindrome (730037).

The spelling of 130006 in words is "one hundred thirty thousand, six".

Divisors: 1 2 65003 130006