Search a number
-
+
105614809 is a prime number
BaseRepresentation
bin1100100101110…
…00110111011001
321100201210021121
412102320313121
5204014133214
614251405241
72421465616
oct622706731
9240653247
10105614809
1154686a73
122b453821
1318b5b391
141005350d
159413424
hex64b8dd9

105614809 has 2 divisors, whose sum is σ = 105614810. Its totient is φ = 105614808.

The previous prime is 105614797. The next prime is 105614857. The reversal of 105614809 is 908416501.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 62094400 + 43520409 = 7880^2 + 6597^2 .

It is an emirp because it is prime and its reverse (908416501) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 105614809 - 25 = 105614777 is a prime.

It is a super-2 number, since 2×1056148092 = 22308975760212962, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (105614869) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52807404 + 52807405.

It is an arithmetic number, because the mean of its divisors is an integer number (52807405).

Almost surely, 2105614809 is an apocalyptic number.

It is an amenable number.

105614809 is a deficient number, since it is larger than the sum of its proper divisors (1).

105614809 is an equidigital number, since it uses as much as digits as its factorization.

105614809 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8640, while the sum is 34.

The square root of 105614809 is about 10276.9065871010. The cubic root of 105614809 is about 472.6883942150.

The spelling of 105614809 in words is "one hundred five million, six hundred fourteen thousand, eight hundred nine".