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105212383 is a prime number
BaseRepresentation
bin1100100010101…
…10100111011111
321022222100020221
412101112213133
5203413244013
614235022211
72415201433
oct621264737
9238870227
10105212383
1154431691
122b29a967
1318a4a163
14dd8a9c3
15938408d
hex64569df

105212383 has 2 divisors, whose sum is σ = 105212384. Its totient is φ = 105212382.

The previous prime is 105212369. The next prime is 105212479. The reversal of 105212383 is 383212501.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 105212383 - 221 = 103115231 is a prime.

It is a super-2 number, since 2×1052123832 = 22139291073077378, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (105212323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52606191 + 52606192.

It is an arithmetic number, because the mean of its divisors is an integer number (52606192).

Almost surely, 2105212383 is an apocalyptic number.

105212383 is a deficient number, since it is larger than the sum of its proper divisors (1).

105212383 is an equidigital number, since it uses as much as digits as its factorization.

105212383 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 105212383 is about 10257.3087600988. The cubic root of 105212383 is about 472.0872657164.

Adding to 105212383 its reverse (383212501), we get a palindrome (488424884).

The spelling of 105212383 in words is "one hundred five million, two hundred twelve thousand, three hundred eighty-three".