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130013243 is a prime number
BaseRepresentation
bin1111011111111…
…01100000111011
3100001122100122022
413233331200323
5231240410433
620522345055
73136044233
oct757754073
9301570568
10130013243
1167430968
123765b18b
1320c21819
14133a4cc3
15b632698
hex7bfd83b

130013243 has 2 divisors, whose sum is σ = 130013244. Its totient is φ = 130013242.

The previous prime is 130013203. The next prime is 130013291. The reversal of 130013243 is 342310031.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 130013243 - 26 = 130013179 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (130013203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65006621 + 65006622.

It is an arithmetic number, because the mean of its divisors is an integer number (65006622).

Almost surely, 2130013243 is an apocalyptic number.

130013243 is a deficient number, since it is larger than the sum of its proper divisors (1).

130013243 is an equidigital number, since it uses as much as digits as its factorization.

130013243 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 130013243 is about 11402.3349801696. The cubic root of 130013243 is about 506.5969029542.

Adding to 130013243 its reverse (342310031), we get a palindrome (472323274).

The spelling of 130013243 in words is "one hundred thirty million, thirteen thousand, two hundred forty-three".