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130780739 is a prime number
BaseRepresentation
bin1111100101110…
…00111001000011
3100010002100110002
413302320321003
5231434440424
620551030215
73145421645
oct762707103
9303070402
10130780739
1167905561
123796b36b
132112cc6b
1413524895
15b734cae
hex7cb8e43

130780739 has 2 divisors, whose sum is σ = 130780740. Its totient is φ = 130780738.

The previous prime is 130780721. The next prime is 130780747. The reversal of 130780739 is 937087031.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-130780739 is a prime.

It is a super-2 number, since 2×1307807392 = 34207203386772242, which contains 22 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (130780339) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65390369 + 65390370.

It is an arithmetic number, because the mean of its divisors is an integer number (65390370).

Almost surely, 2130780739 is an apocalyptic number.

130780739 is a deficient number, since it is larger than the sum of its proper divisors (1).

130780739 is an equidigital number, since it uses as much as digits as its factorization.

130780739 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 31752, while the sum is 38.

The square root of 130780739 is about 11435.9406696607. The cubic root of 130780739 is about 507.5917978039.

The spelling of 130780739 in words is "one hundred thirty million, seven hundred eighty thousand, seven hundred thirty-nine".