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105354280 = 2352633857
BaseRepresentation
bin1100100011110…
…01010000101000
321100020112220101
412101321100220
5203432314110
614242035144
72416332223
oct621712050
9240215811
10105354280
1154519259
122b348ab4
1318a99915
14ddc65ba
1593b113a
hex6479428

105354280 has 16 divisors (see below), whose sum is σ = 237047220. Its totient is φ = 42141696.

The previous prime is 105354251. The next prime is 105354289. The reversal of 105354280 is 82453501.

It can be written as a sum of positive squares in 2 ways, for example, as 105144516 + 209764 = 10254^2 + 458^2 .

It is a super-2 number, since 2×1053542802 = 22199048628636800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (105354289) 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 3 ways as a sum of consecutive naturals, for example, 1316889 + ... + 1316968.

Almost surely, 2105354280 is an apocalyptic number.

105354280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

105354280 is an abundant number, since it is smaller than the sum of its proper divisors (131692940).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

105354280 is a wasteful number, since it uses less digits than its factorization.

105354280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2633868 (or 2633864 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 28.

The square root of 105354280 is about 10264.2233023254. The cubic root of 105354280 is about 472.2994006778.

The spelling of 105354280 in words is "one hundred five million, three hundred fifty-four thousand, two hundred eighty".

Divisors: 1 2 4 5 8 10 20 40 2633857 5267714 10535428 13169285 21070856 26338570 52677140 105354280