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82037108281 is a prime number
BaseRepresentation
bin100110001100111001…
…0101110111000111001
321211202022021220012211
41030121302232320321
52321002444431111
6101404243535121
75632645625542
oct1143162567071
9254668256184
1082037108281
1131878899747
1213a9608a4a1
1379751a272b
143d835334c9
152202261521
hex1319caee39

82037108281 has 2 divisors, whose sum is σ = 82037108282. Its totient is φ = 82037108280.

The previous prime is 82037108273. The next prime is 82037108303. The reversal of 82037108281 is 18280173028.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 57257311225 + 24779797056 = 239285^2 + 157416^2 .

It is a cyclic number.

It is not a de Polignac number, because 82037108281 - 23 = 82037108273 is a prime.

It is a super-2 number, since 2×820371082812 (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (82037408281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41018554140 + 41018554141.

It is an arithmetic number, because the mean of its divisors is an integer number (41018554141).

Almost surely, 282037108281 is an apocalyptic number.

It is an amenable number.

82037108281 is a deficient number, since it is larger than the sum of its proper divisors (1).

82037108281 is an equidigital number, since it uses as much as digits as its factorization.

82037108281 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 43008, while the sum is 40.

The spelling of 82037108281 in words is "eighty-two billion, thirty-seven million, one hundred eight thousand, two hundred eighty-one".