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80705323 is a prime number
BaseRepresentation
bin1001100111101…
…11011100101011
312121212020220001
410303313130223
5131130032243
612001443431
71666661326
oct463673453
9177766801
1080705323
1141613116
1223040577
131394943a
14aa0b7bd
157142a4d
hex4cf772b

80705323 has 2 divisors, whose sum is σ = 80705324. Its totient is φ = 80705322.

The previous prime is 80705311. The next prime is 80705327. The reversal of 80705323 is 32350708.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 80705323 - 25 = 80705291 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 80705291 and 80705300.

It is not a weakly prime, because it can be changed into another prime (80705327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40352661 + 40352662.

It is an arithmetic number, because the mean of its divisors is an integer number (40352662).

Almost surely, 280705323 is an apocalyptic number.

80705323 is a deficient number, since it is larger than the sum of its proper divisors (1).

80705323 is an equidigital number, since it uses as much as digits as its factorization.

80705323 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5040, while the sum is 28.

The square root of 80705323 is about 8983.6141390868. The cubic root of 80705323 is about 432.1495449198.

The spelling of 80705323 in words is "eighty million, seven hundred five thousand, three hundred twenty-three".