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279001313 is a prime number
BaseRepresentation
bin10000101000010…
…011100011100001
3201102222201211222
4100220103203201
51032411020223
643403544425
76625320623
oct2050234341
9642881758
10279001313
111335418a8
127952b115
1345a57c46
14290a8c13
15197620c8
hex10a138e1

279001313 has 2 divisors, whose sum is σ = 279001314. Its totient is φ = 279001312.

The previous prime is 279001277. The next prime is 279001337. The reversal of 279001313 is 313100972.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 238640704 + 40360609 = 15448^2 + 6353^2 .

It is a cyclic number.

It is not a de Polignac number, because 279001313 - 210 = 279000289 is a prime.

It is not a weakly prime, because it can be changed into another prime (279001343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 139500656 + 139500657.

It is an arithmetic number, because the mean of its divisors is an integer number (139500657).

Almost surely, 2279001313 is an apocalyptic number.

It is an amenable number.

279001313 is a deficient number, since it is larger than the sum of its proper divisors (1).

279001313 is an equidigital number, since it uses as much as digits as its factorization.

279001313 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1134, while the sum is 26.

The square root of 279001313 is about 16703.3323920708. The cubic root of 279001313 is about 653.4345327468.

The spelling of 279001313 in words is "two hundred seventy-nine million, one thousand, three hundred thirteen".