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130279579 is a prime number
BaseRepresentation
bin1111100001111…
…10100010011011
3100002010212222121
413300332202123
5231322421304
620532202111
73141233563
oct760764233
9302125877
10130279579
11675a2a81
1237769337
1320cb5b11
1413433da3
15b686554
hex7c3e89b

130279579 has 2 divisors, whose sum is σ = 130279580. Its totient is φ = 130279578.

The previous prime is 130279573. The next prime is 130279607. The reversal of 130279579 is 975972031.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 130279579 - 25 = 130279547 is a prime.

It is not a weakly prime, because it can be changed into another prime (130279573) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65139789 + 65139790.

It is an arithmetic number, because the mean of its divisors is an integer number (65139790).

Almost surely, 2130279579 is an apocalyptic number.

130279579 is a deficient number, since it is larger than the sum of its proper divisors (1).

130279579 is an equidigital number, since it uses as much as digits as its factorization.

130279579 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 119070, while the sum is 43.

The square root of 130279579 is about 11414.0080164682. The cubic root of 130279579 is about 506.9425932898.

The spelling of 130279579 in words is "one hundred thirty million, two hundred seventy-nine thousand, five hundred seventy-nine".