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8112001 is a prime number
BaseRepresentation
bin11110111100011110000001
3120021010120111
4132330132001
54034041001
6445511321
7125644102
oct36743601
916233514
108112001
114640737
122872541
1318b0401
1411123a9
15aa3851
hex7bc781

8112001 has 2 divisors, whose sum is σ = 8112002. Its totient is φ = 8112000.

The previous prime is 8111981. The next prime is 8112011. The reversal of 8112001 is 1002118.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6635776 + 1476225 = 2576^2 + 1215^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-8112001 is a prime.

It is not a weakly prime, because it can be changed into another prime (8112011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4056000 + 4056001.

It is an arithmetic number, because the mean of its divisors is an integer number (4056001).

Almost surely, 28112001 is an apocalyptic number.

It is an amenable number.

8112001 is a deficient number, since it is larger than the sum of its proper divisors (1).

8112001 is an equidigital number, since it uses as much as digits as its factorization.

8112001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16, while the sum is 13.

The square root of 8112001 is about 2848.1574745790. The cubic root of 8112001 is about 200.9290195978.

Adding to 8112001 its reverse (1002118), we get a palindrome (9114119).

The spelling of 8112001 in words is "eight million, one hundred twelve thousand, one".