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105612146 = 21941531279
BaseRepresentation
bin1100100101110…
…00001101110010
321100201122121222
412102320031302
5204014042041
614251345042
72421455063
oct622701562
9240648558
10105612146
1154684a72
122b452182
1318b5a0c3
141005256a
15941274b
hex64b8372

105612146 has 32 divisors (see below), whose sum is σ = 174182400. Its totient is φ = 47848320.

The previous prime is 105612139. The next prime is 105612151. The reversal of 105612146 is 641216501.

It is a super-2 number, since 2×1056121462 = 22307850765450632, which contains 22 as substring.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 81935 + ... + 83213.

It is an arithmetic number, because the mean of its divisors is an integer number (5443200).

Almost surely, 2105612146 is an apocalyptic number.

105612146 is a deficient number, since it is larger than the sum of its proper divisors (68570254).

105612146 is a wasteful number, since it uses less digits than its factorization.

105612146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1394.

The product of its (nonzero) digits is 1440, while the sum is 26.

The square root of 105612146 is about 10276.7770239507. Note that the first 3 decimals coincide. The cubic root of 105612146 is about 472.6844213511.

Adding to 105612146 its reverse (641216501), we get a palindrome (746828647).

The spelling of 105612146 in words is "one hundred five million, six hundred twelve thousand, one hundred forty-six".

Divisors: 1 2 19 38 41 53 82 106 779 1007 1279 1558 2014 2173 2558 4346 24301 41287 48602 52439 67787 82574 104878 135574 996341 1287953 1992682 2575906 2779267 5558534 52806073 105612146