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20542382252069 is a prime number
BaseRepresentation
bin1001010101110111001010…
…11001011010000000100101
32200201211110221100200212212
410222323211121122000211
510143031244324031234
6111405012400053205
74220065245056336
oct452734531320045
980654427320785
1020542382252069
1165aaa80273837
122379302304205
13b601a4bc7672
145103841ac28d
1525954b6bd5ce
hex12aee565a025

20542382252069 has 2 divisors, whose sum is σ = 20542382252070. Its totient is φ = 20542382252068.

The previous prime is 20542382251927. The next prime is 20542382252101. The reversal of 20542382252069 is 96025228324502.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15570418807969 + 4971963444100 = 3945937^2 + 2229790^2 .

It is a cyclic number.

It is not a de Polignac number, because 20542382252069 - 28 = 20542382251813 is a prime.

It is a super-2 number, since 2×205423822520692 (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20542382152069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10271191126034 + 10271191126035.

It is an arithmetic number, because the mean of its divisors is an integer number (10271191126035).

Almost surely, 220542382252069 is an apocalyptic number.

It is an amenable number.

20542382252069 is a deficient number, since it is larger than the sum of its proper divisors (1).

20542382252069 is an equidigital number, since it uses as much as digits as its factorization.

20542382252069 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4147200, while the sum is 50.

The spelling of 20542382252069 in words is "twenty trillion, five hundred forty-two billion, three hundred eighty-two million, two hundred fifty-two thousand, sixty-nine".