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49812280457 is a prime number
BaseRepresentation
bin101110011001000010…
…110001010010001001
311202120111121000211012
4232121002301102021
51304003420433312
634514454013305
73412252253312
oct563102612211
9152514530735
1049812280457
111a141808635
1297a2047235
13490abc5284
1425a7827609
151468164322
hexb990b1489

49812280457 has 2 divisors, whose sum is σ = 49812280458. Its totient is φ = 49812280456.

The previous prime is 49812280451. The next prime is 49812280517. The reversal of 49812280457 is 75408221894.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 45703598656 + 4108681801 = 213784^2 + 64099^2 .

It is a cyclic number.

It is not a de Polignac number, because 49812280457 - 26 = 49812280393 is a prime.

It is not a weakly prime, because it can be changed into another prime (49812280451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24906140228 + 24906140229.

It is an arithmetic number, because the mean of its divisors is an integer number (24906140229).

Almost surely, 249812280457 is an apocalyptic number.

It is an amenable number.

49812280457 is a deficient number, since it is larger than the sum of its proper divisors (1).

49812280457 is an equidigital number, since it uses as much as digits as its factorization.

49812280457 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1290240, while the sum is 50.

The spelling of 49812280457 in words is "forty-nine billion, eight hundred twelve million, two hundred eighty thousand, four hundred fifty-seven".