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80974741 is a prime number
BaseRepresentation
bin1001101001110…
…01001110010101
312122100221110111
410310321032111
5131212142431
612011323021
72002162651
oct464711625
9178327414
1080974741
1141787581
1223150471
1313a11c63
14aa7ba61
1571977b1
hex4d39395

80974741 has 2 divisors, whose sum is σ = 80974742. Its totient is φ = 80974740.

The previous prime is 80974721. The next prime is 80974753. The reversal of 80974741 is 14747908.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 78694641 + 2280100 = 8871^2 + 1510^2 .

It is a cyclic number.

It is not a de Polignac number, because 80974741 - 223 = 72586133 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 80974694 and 80974703.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80974721) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40487370 + 40487371.

It is an arithmetic number, because the mean of its divisors is an integer number (40487371).

Almost surely, 280974741 is an apocalyptic number.

It is an amenable number.

80974741 is a deficient number, since it is larger than the sum of its proper divisors (1).

80974741 is an equidigital number, since it uses as much as digits as its factorization.

80974741 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 56448, while the sum is 40.

The square root of 80974741 is about 8998.5966128058. The cubic root of 80974741 is about 432.6298913770.

The spelling of 80974741 in words is "eighty million, nine hundred seventy-four thousand, seven hundred forty-one".