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3808238105 = 5741492129
BaseRepresentation
bin1110001011111101…
…0001101000011001
3100211101212112120202
43202333101220121
530244402104410
61425515431545
7163241330000
oct34277215031
910741775522
103808238105
111684718721
128a34555b5
13488c90039
14281ab7c37
151744e6ca5
hexe2fd1a19

3808238105 has 40 divisors (see below), whose sum is σ = 5369517000. Its totient is φ = 2592619008.

The previous prime is 3808238047. The next prime is 3808238117. The reversal of 3808238105 is 5018328083.

It can be written as a sum of positive squares in 4 ways, for example, as 2458624 + 3805779481 = 1568^2 + 61691^2 .

It is not a de Polignac number, because 3808238105 - 214 = 3808221721 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 1787681 + ... + 1789809.

It is an arithmetic number, because the mean of its divisors is an integer number (134237925).

Almost surely, 23808238105 is an apocalyptic number.

3808238105 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

3808238105 is a deficient number, since it is larger than the sum of its proper divisors (1561278895).

3808238105 is an equidigital number, since it uses as much as digits as its factorization.

3808238105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2311 (or 2290 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 38.

The square root of 3808238105 is about 61710.9237088540. The cubic root of 3808238105 is about 1561.6176110526.

The spelling of 3808238105 in words is "three billion, eight hundred eight million, two hundred thirty-eight thousand, one hundred five".

Divisors: 1 5 7 35 49 149 245 343 745 1043 1715 2129 2401 5215 7301 10645 12005 14903 36505 51107 74515 104321 255535 317221 357749 521605 730247 1586105 1788745 2220547 3651235 5111729 11102735 15543829 25558645 77719145 108806803 544034015 761647621 3808238105