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105210308 = 2273757511
BaseRepresentation
bin1100100010101…
…10000111000100
321022222020102002
412101112013010
5203413212213
614235004432
72415162410
oct621260704
9238866362
10105210308
1154430075
122b299718
1318a49228
14dd89d40
159383658
hex64561c4

105210308 has 12 divisors (see below), whose sum is σ = 210420672. Its totient is φ = 45090120.

The previous prime is 105210269. The next prime is 105210317. The reversal of 105210308 is 803012501.

105210308 is an admirable number.

It is a super-2 number, since 2×1052103082 = 22138417818909728, 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 105210308.

It is an unprimeable number.

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, 1878728 + ... + 1878783.

It is an arithmetic number, because the mean of its divisors is an integer number (17535056).

Almost surely, 2105210308 is an apocalyptic number.

It is an amenable number.

105210308 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

105210308 is a wasteful number, since it uses less digits than its factorization.

105210308 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3757522 (or 3757520 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 20.

The square root of 105210308 is about 10257.2076122110. The cubic root of 105210308 is about 472.0841621922.

Adding to 105210308 its reverse (803012501), we get a palindrome (908222809).

The spelling of 105210308 in words is "one hundred five million, two hundred ten thousand, three hundred eight".

Divisors: 1 2 4 7 14 28 3757511 7515022 15030044 26302577 52605154 105210308