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7101132281 is a prime number
BaseRepresentation
bin1101001110100001…
…01010110111111001
3200022220000220012022
412213100222313321
5104020342213111
63132345524225
7340654425365
oct64720526771
920286026168
107101132281
113014449871
1214621a3675
13892254c29
144b51642a5
152b86442db
hex1a742adf9

7101132281 has 2 divisors, whose sum is σ = 7101132282. Its totient is φ = 7101132280.

The previous prime is 7101132223. The next prime is 7101132293. The reversal of 7101132281 is 1822311017.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4440223225 + 2660909056 = 66635^2 + 51584^2 .

It is an emirp because it is prime and its reverse (1822311017) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-7101132281 is a prime.

It is a super-2 number, since 2×71011322812 (a number of 21 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 7101132281.

It is not a weakly prime, because it can be changed into another prime (7101132481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3550566140 + 3550566141.

It is an arithmetic number, because the mean of its divisors is an integer number (3550566141).

Almost surely, 27101132281 is an apocalyptic number.

It is an amenable number.

7101132281 is a deficient number, since it is larger than the sum of its proper divisors (1).

7101132281 is an equidigital number, since it uses as much as digits as its factorization.

7101132281 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 672, while the sum is 26.

The square root of 7101132281 is about 84268.2163155243. The cubic root of 7101132281 is about 1922.0995082863.

Adding to 7101132281 its reverse (1822311017), we get a palindrome (8923443298).

The spelling of 7101132281 in words is "seven billion, one hundred one million, one hundred thirty-two thousand, two hundred eighty-one".