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130504223 = 177676719
BaseRepresentation
bin1111100011101…
…01011000011111
3100002120022010202
413301311120133
5231402113343
620541054115
73143160533
oct761653037
9302508122
10130504223
1167736833
123785733b
1321064145
1413491bc3
15b6ccdb8
hex7c7561f

130504223 has 4 divisors (see below), whose sum is σ = 138180960. Its totient is φ = 122827488.

The previous prime is 130504219. The next prime is 130504243. The reversal of 130504223 is 322405031.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 322405031 = 1324800387.

It is a cyclic number.

It is not a de Polignac number, because 130504223 - 22 = 130504219 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 130504195 and 130504204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130504243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3838343 + ... + 3838376.

It is an arithmetic number, because the mean of its divisors is an integer number (34545240).

Almost surely, 2130504223 is an apocalyptic number.

130504223 is a deficient number, since it is larger than the sum of its proper divisors (7676737).

130504223 is an equidigital number, since it uses as much as digits as its factorization.

130504223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7676736.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 130504223 is about 11423.8444929892. The cubic root of 130504223 is about 507.2338034683.

Adding to 130504223 its reverse (322405031), we get a palindrome (452909254).

The spelling of 130504223 in words is "one hundred thirty million, five hundred four thousand, two hundred twenty-three".

Divisors: 1 17 7676719 130504223