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105424261 = 4353167277
BaseRepresentation
bin1100100100010…
…10010110000101
321100101002220021
412102022112011
5203442034021
614243335141
72420043235
oct622122605
9240332807
10105424261
1154566898
122b3814b1
1318ac2727
1410003cc5
1593c6c41
hex648a585

105424261 has 16 divisors (see below), whose sum is σ = 110968704. Its totient is φ = 100062144.

The previous prime is 105424237. The next prime is 105424271. The reversal of 105424261 is 162424501.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 105424261 - 215 = 105391493 is a prime.

It is a super-2 number, since 2×1054242612 = 22228549614792242, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105424201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 380455 + ... + 380731.

It is an arithmetic number, because the mean of its divisors is an integer number (6935544).

Almost surely, 2105424261 is an apocalyptic number.

It is an amenable number.

105424261 is a deficient number, since it is larger than the sum of its proper divisors (5544443).

105424261 is a wasteful number, since it uses less digits than its factorization.

105424261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 540.

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 105424261 is about 10267.6317133018. The cubic root of 105424261 is about 472.4039516237.

Adding to 105424261 its reverse (162424501), we get a palindrome (267848762).

The spelling of 105424261 in words is "one hundred five million, four hundred twenty-four thousand, two hundred sixty-one".

Divisors: 1 43 53 167 277 2279 7181 8851 11911 14681 46259 380593 631283 1989137 2451727 105424261