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80028497 is a prime number
BaseRepresentation
bin1001100010100…
…10001101010001
312120120212110102
410301102031101
5130441402442
611535142145
71661142143
oct461221521
9176525412
1080028497
11411a065a
1222974955
1313770353
14a8b2c93
15705c232
hex4c52351

80028497 has 2 divisors, whose sum is σ = 80028498. Its totient is φ = 80028496.

The previous prime is 80028493. The next prime is 80028499. The reversal of 80028497 is 79482008.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 53567761 + 26460736 = 7319^2 + 5144^2 .

It is a cyclic number.

It is not a de Polignac number, because 80028497 - 22 = 80028493 is a prime.

Together with 80028499, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 80028497.

It is not a weakly prime, because it can be changed into another prime (80028491) 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, 40014248 + 40014249.

It is an arithmetic number, because the mean of its divisors is an integer number (40014249).

Almost surely, 280028497 is an apocalyptic number.

It is an amenable number.

80028497 is a deficient number, since it is larger than the sum of its proper divisors (1).

80028497 is an equidigital number, since it uses as much as digits as its factorization.

80028497 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32256, while the sum is 38.

The square root of 80028497 is about 8945.8647988889. The cubic root of 80028497 is about 430.9380943705.

The spelling of 80028497 in words is "eighty million, twenty-eight thousand, four hundred ninety-seven".