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BaseRepresentation
bin1001000111010011111010…
…11101111011100000011001
32121222000222212200202200121
410203221331131323200121
510111333340113313144
6110343210045233241
74136005624335256
oct443517535734031
977860885622617
1020042422401049
116427a41a38914
1222b8432862821
13b24cb91961a9
144d40b643a42d
1524b53936b384
hex123a7d77b819

20042422401049 has 2 divisors, whose sum is σ = 20042422401050. Its totient is φ = 20042422401048.

The previous prime is 20042422400969. The next prime is 20042422401061. The reversal of 20042422401049 is 94010422424002.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19717756059024 + 324666342025 = 4440468^2 + 569795^2 .

It is a cyclic number.

It is not a de Polignac number, because 20042422401049 - 219 = 20042421876761 is a prime.

It is not a weakly prime, because it can be changed into another prime (20042422408049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10021211200524 + 10021211200525.

It is an arithmetic number, because the mean of its divisors is an integer number (10021211200525).

Almost surely, 220042422401049 is an apocalyptic number.

It is an amenable number.

20042422401049 is a deficient number, since it is larger than the sum of its proper divisors (1).

20042422401049 is an equidigital number, since it uses as much as digits as its factorization.

20042422401049 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36864, while the sum is 34.

The spelling of 20042422401049 in words is "twenty trillion, forty-two billion, four hundred twenty-two million, four hundred one thousand, forty-nine".