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105149311 is a prime number
BaseRepresentation
bin1100100010001…
…11001101111111
321022212010201221
412101013031333
5203404234221
614233414211
72414516521
oct621071577
9238763657
10105149311
1154399263
122b26a367
1318a27537
14dd71a11
159370541
hex644737f

105149311 has 2 divisors, whose sum is σ = 105149312. Its totient is φ = 105149310.

The previous prime is 105149309. The next prime is 105149323. The reversal of 105149311 is 113941501.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 105149311 - 21 = 105149309 is a prime.

It is a super-2 number, since 2×1051493112 = 22112755207549442, which contains 22 as substring.

Together with 105149309, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (105149371) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52574655 + 52574656.

It is an arithmetic number, because the mean of its divisors is an integer number (52574656).

Almost surely, 2105149311 is an apocalyptic number.

105149311 is a deficient number, since it is larger than the sum of its proper divisors (1).

105149311 is an equidigital number, since it uses as much as digits as its factorization.

105149311 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 540, while the sum is 25.

The square root of 105149311 is about 10254.2338085300. The cubic root of 105149311 is about 471.9929123110.

The spelling of 105149311 in words is "one hundred five million, one hundred forty-nine thousand, three hundred eleven".