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2105552297 is a prime number
BaseRepresentation
bin111110110000000…
…0010110110101001
312102201222010202102
41331200002312221
513303010133142
6544533143145
7103114620302
oct17540026651
95381863672
102105552297
11990590672
124a918aab5
132772b3144
1415d8d37a9
15c4cb2532
hex7d802da9

2105552297 has 2 divisors, whose sum is σ = 2105552298. Its totient is φ = 2105552296.

The previous prime is 2105552269. The next prime is 2105552321. The reversal of 2105552297 is 7922555012.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1914587536 + 190964761 = 43756^2 + 13819^2 .

It is a cyclic number.

It is not a de Polignac number, because 2105552297 - 212 = 2105548201 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2105552297.

It is not a weakly prime, because it can be changed into another prime (2105552497) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1052776148 + 1052776149.

It is an arithmetic number, because the mean of its divisors is an integer number (1052776149).

Almost surely, 22105552297 is an apocalyptic number.

It is an amenable number.

2105552297 is a deficient number, since it is larger than the sum of its proper divisors (1).

2105552297 is an equidigital number, since it uses as much as digits as its factorization.

2105552297 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 63000, while the sum is 38.

The square root of 2105552297 is about 45886.2974862867. The cubic root of 2105552297 is about 1281.7067679626.

The spelling of 2105552297 in words is "two billion, one hundred five million, five hundred fifty-two thousand, two hundred ninety-seven".