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105144226 = 21123919997
BaseRepresentation
bin1100100010001…
…01111110100010
321022211212202121
412101011332202
5203404103401
614233334454
72414465635
oct621057642
9238755677
10105144226
1154395460
122b26742a
1318a25125
14dd6dc1c
15936dca1
hex6445fa2

105144226 has 16 divisors (see below), whose sum is σ = 172782720. Its totient is φ = 47590480.

The previous prime is 105144223. The next prime is 105144241. The reversal of 105144226 is 622441501.

It is a happy number.

It is a super-2 number, since 2×1051442262 = 22110616522278152, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 105144226.

It is not an unprimeable number, because it can be changed into a prime (105144223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4741 + ... + 15256.

It is an arithmetic number, because the mean of its divisors is an integer number (10798920).

Almost surely, 2105144226 is an apocalyptic number.

105144226 is a deficient number, since it is larger than the sum of its proper divisors (67638494).

105144226 is a wasteful number, since it uses less digits than its factorization.

105144226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20249.

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

The square root of 105144226 is about 10253.9858591672. The cubic root of 105144226 is about 471.9853036935.

Adding to 105144226 its reverse (622441501), we get a palindrome (727585727).

The spelling of 105144226 in words is "one hundred five million, one hundred forty-four thousand, two hundred twenty-six".

Divisors: 1 2 11 22 239 478 2629 5258 19997 39994 219967 439934 4779283 9558566 52572113 105144226