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1297996093 is a prime number
BaseRepresentation
bin100110101011101…
…1101100100111101
310100110102000220101
41031113131210331
510124241333333
6332444321101
744110533112
oct11527354475
93313360811
101297996093
11606759749
12302843191
13178bb5b34
14c455c909
1578e4667d
hex4d5dd93d

1297996093 has 2 divisors, whose sum is σ = 1297996094. Its totient is φ = 1297996092.

The previous prime is 1297996057. The next prime is 1297996103. The reversal of 1297996093 is 3906997921.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1287517924 + 10478169 = 35882^2 + 3237^2 .

It is a cyclic number.

It is not a de Polignac number, because 1297996093 - 29 = 1297995581 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1297996033) 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, 648998046 + 648998047.

It is an arithmetic number, because the mean of its divisors is an integer number (648998047).

Almost surely, 21297996093 is an apocalyptic number.

It is an amenable number.

1297996093 is a deficient number, since it is larger than the sum of its proper divisors (1).

1297996093 is an equidigital number, since it uses as much as digits as its factorization.

1297996093 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1653372, while the sum is 55.

The square root of 1297996093 is about 36027.7128471958. The cubic root of 1297996093 is about 1090.8318126620.

The spelling of 1297996093 in words is "one billion, two hundred ninety-seven million, nine hundred ninety-six thousand, ninety-three".