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105166257 = 3753611549
BaseRepresentation
bin1100100010010…
…11010110110001
321022212222222120
412101023112301
5203410310012
614234024453
72414620110
oct621132661
9238788876
10105166257
11543aaa69
122b278129
1318a32171
14dd77c77
15937558c
hex644b5b1

105166257 has 32 divisors (see below), whose sum is σ = 166060800. Its totient is φ = 57957120.

The previous prime is 105166253. The next prime is 105166289. The reversal of 105166257 is 752661501.

It is not a de Polignac number, because 105166257 - 22 = 105166253 is a prime.

It is a super-2 number, since 2×1051662572 = 22119883222780098, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (105166253) 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 31 ways as a sum of consecutive naturals, for example, 67119 + ... + 68667.

It is an arithmetic number, because the mean of its divisors is an integer number (5189400).

Almost surely, 2105166257 is an apocalyptic number.

It is an amenable number.

105166257 is a deficient number, since it is larger than the sum of its proper divisors (60894543).

105166257 is a wasteful number, since it uses less digits than its factorization.

105166257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1673.

The product of its (nonzero) digits is 12600, while the sum is 33.

The square root of 105166257 is about 10255.0600680835. The cubic root of 105166257 is about 472.0182666133.

The spelling of 105166257 in words is "one hundred five million, one hundred sixty-six thousand, two hundred fifty-seven".

Divisors: 1 3 7 21 53 61 159 183 371 427 1113 1281 1549 3233 4647 9699 10843 22631 32529 67893 82097 94489 246291 283467 574679 661423 1724037 1984269 5007917 15023751 35055419 105166257