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130431079 is a prime number
BaseRepresentation
bin1111100011000…
…11100001100111
3100002102120210201
413301203201213
5231342243304
620535331331
73142434352
oct761434147
9302376721
10130431079
1167696889
1237820b47
1321039a6c
1413473299
15b6b63a4
hex7c63867

130431079 has 2 divisors, whose sum is σ = 130431080. Its totient is φ = 130431078.

The previous prime is 130431053. The next prime is 130431107. The reversal of 130431079 is 970134031.

It is an a-pointer prime, because the next prime (130431107) can be obtained adding 130431079 to its sum of digits (28).

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-130431079 is a prime.

It is a zygodrome in base 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (130431479) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65215539 + 65215540.

It is an arithmetic number, because the mean of its divisors is an integer number (65215540).

Almost surely, 2130431079 is an apocalyptic number.

130431079 is a deficient number, since it is larger than the sum of its proper divisors (1).

130431079 is an equidigital number, since it uses as much as digits as its factorization.

130431079 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2268, while the sum is 28.

The square root of 130431079 is about 11420.6426701828. The cubic root of 130431079 is about 507.1390222625.

The spelling of 130431079 in words is "one hundred thirty million, four hundred thirty-one thousand, seventy-nine".