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106669813 is a prime number
BaseRepresentation
bin1100101101110…
…10011011110101
321102201101110211
412112322123311
5204301413223
614330145421
72433451465
oct626723365
9242641424
10106669813
1155237678
122b882271
131913a643
1410249ba5
159570d0d
hex65ba6f5

106669813 has 2 divisors, whose sum is σ = 106669814. Its totient is φ = 106669812.

The previous prime is 106669807. The next prime is 106669831. The reversal of 106669813 is 318966601.

Together with next prime (106669831) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 87946884 + 18722929 = 9378^2 + 4327^2 .

It is an emirp because it is prime and its reverse (318966601) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 106669813 - 217 = 106538741 is a prime.

It is a super-2 number, since 2×1066698132 = 22756898010909938, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (106669313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53334906 + 53334907.

It is an arithmetic number, because the mean of its divisors is an integer number (53334907).

Almost surely, 2106669813 is an apocalyptic number.

It is an amenable number.

106669813 is a deficient number, since it is larger than the sum of its proper divisors (1).

106669813 is an equidigital number, since it uses as much as digits as its factorization.

106669813 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 46656, while the sum is 40.

The square root of 106669813 is about 10328.1079099707. The cubic root of 106669813 is about 474.2571035411.

The spelling of 106669813 in words is "one hundred six million, six hundred sixty-nine thousand, eight hundred thirteen".