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130842739 is a prime number
BaseRepresentation
bin1111100110010…
…00000001110011
3100010012111111101
413303020001303
5231443431424
620552225231
73146100466
oct763100163
9303174441
10130842739
11679480a5
123799b217
1321152251
141353d2dd
15b748344
hex7cc8073

130842739 has 2 divisors, whose sum is σ = 130842740. Its totient is φ = 130842738.

The previous prime is 130842737. The next prime is 130842757. The reversal of 130842739 is 937248031.

It is a weak prime.

It is an emirp because it is prime and its reverse (937248031) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 130842739 - 21 = 130842737 is a prime.

Together with 130842737, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 130842698 and 130842707.

It is not a weakly prime, because it can be changed into another prime (130842731) 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, 65421369 + 65421370.

It is an arithmetic number, because the mean of its divisors is an integer number (65421370).

Almost surely, 2130842739 is an apocalyptic number.

130842739 is a deficient number, since it is larger than the sum of its proper divisors (1).

130842739 is an equidigital number, since it uses as much as digits as its factorization.

130842739 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36288, while the sum is 37.

The square root of 130842739 is about 11438.6511005450. The cubic root of 130842739 is about 507.6719974822.

The spelling of 130842739 in words is "one hundred thirty million, eight hundred forty-two thousand, seven hundred thirty-nine".