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2097010081 is a prime number
BaseRepresentation
bin111110011111101…
…1101010110100001
312102010220011001001
41330333131112201
513243313310311
6544030112001
7102652202005
oct17477352641
95363804031
102097010081
11986786791
124a634b601
132755b1c8a
1415c70c705
15c41764c1
hex7cfdd5a1

2097010081 has 2 divisors, whose sum is σ = 2097010082. Its totient is φ = 2097010080.

The previous prime is 2097010033. The next prime is 2097010087. The reversal of 2097010081 is 1800107902.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1603281681 + 493728400 = 40041^2 + 22220^2 .

It is a cyclic number.

It is not a de Polignac number, because 2097010081 - 29 = 2097009569 is a prime.

It is a super-2 number, since 2×20970100812 = 8794902559631253122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2097010087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1048505040 + 1048505041.

It is an arithmetic number, because the mean of its divisors is an integer number (1048505041).

Almost surely, 22097010081 is an apocalyptic number.

It is an amenable number.

2097010081 is a deficient number, since it is larger than the sum of its proper divisors (1).

2097010081 is an equidigital number, since it uses as much as digits as its factorization.

2097010081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1008, while the sum is 28.

The square root of 2097010081 is about 45793.1226386670. The cubic root of 2097010081 is about 1279.9711258542.

Adding to 2097010081 its reverse (1800107902), we get a palindrome (3897117983).

The spelling of 2097010081 in words is "two billion, ninety-seven million, ten thousand, eighty-one".