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103101289 is a prime number
BaseRepresentation
bin1100010010100…
…11001101101001
321012000002101021
412021103031221
5202343220124
614121452441
72361226564
oct611231551
9235002337
10103101289
115321a585
122a641121
131848b2a5
14d99b4db
1590b87e4
hex6253369

103101289 has 2 divisors, whose sum is σ = 103101290. Its totient is φ = 103101288.

The previous prime is 103101287. The next prime is 103101307. The reversal of 103101289 is 982101301.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 100160064 + 2941225 = 10008^2 + 1715^2 .

It is an emirp because it is prime and its reverse (982101301) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 103101289 - 21 = 103101287 is a prime.

Together with 103101287, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (103101281) 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, 51550644 + 51550645.

It is an arithmetic number, because the mean of its divisors is an integer number (51550645).

Almost surely, 2103101289 is an apocalyptic number.

It is an amenable number.

103101289 is a deficient number, since it is larger than the sum of its proper divisors (1).

103101289 is an equidigital number, since it uses as much as digits as its factorization.

103101289 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 25.

The square root of 103101289 is about 10153.8804897438. The cubic root of 103101289 is about 468.9084204329.

It can be divided in two parts, 10310 and 1289, that multiplied together give a triangular number (13289590 = T5155).

The spelling of 103101289 in words is "one hundred three million, one hundred one thousand, two hundred eighty-nine".