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80458849 is a prime number
BaseRepresentation
bin1001100101110…
…11010001100001
312121101201210101
410302323101201
5131044140344
611552302401
71664613622
oct462732141
9177351711
1080458849
1141464a19
1222b41a01
13138911b3
14a985a49
1570e49d4
hex4cbb461

80458849 has 2 divisors, whose sum is σ = 80458850. Its totient is φ = 80458848.

The previous prime is 80458837. The next prime is 80458871. The reversal of 80458849 is 94885408.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 57274624 + 23184225 = 7568^2 + 4815^2 .

It is a cyclic number.

It is not a de Polignac number, because 80458849 - 215 = 80426081 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 80458799 and 80458808.

It is not a weakly prime, because it can be changed into another prime (80458349) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40229424 + 40229425.

It is an arithmetic number, because the mean of its divisors is an integer number (40229425).

Almost surely, 280458849 is an apocalyptic number.

It is an amenable number.

80458849 is a deficient number, since it is larger than the sum of its proper divisors (1).

80458849 is an equidigital number, since it uses as much as digits as its factorization.

80458849 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 368640, while the sum is 46.

The square root of 80458849 is about 8969.8856737419. The cubic root of 80458849 is about 431.7091681756.

The spelling of 80458849 in words is "eighty million, four hundred fifty-eight thousand, eight hundred forty-nine".