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68836884444 = 22325716834903
BaseRepresentation
bin100000000011011111…
…1110111111111011100
320120200100202001021200
41000012333313333130
52111434220300234
651342341155500
74654561602126
oct1000677677734
9216610661250
1068836884444
1127214699149
12114113bbb90
1366504988b3
143490368216
151bcd45dd99
hex1006ff7fdc

68836884444 has 72 divisors (see below), whose sum is σ = 174599897472. Its totient is φ = 22867241760.

The previous prime is 68836884427. The next prime is 68836884463. The reversal of 68836884444 is 44448863886.

68836884444 is a `hidden beast` number, since 6 + 88 + 36 + 8 + 84 + 444 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14037297 + ... + 14042199.

It is an arithmetic number, because the mean of its divisors is an integer number (2424998576).

Almost surely, 268836884444 is an apocalyptic number.

It is an amenable number.

68836884444 is an abundant number, since it is smaller than the sum of its proper divisors (105763013028).

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

68836884444 is a wasteful number, since it uses less digits than its factorization.

68836884444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6167 (or 6162 counting only the distinct ones).

The product of its digits is 113246208, while the sum is 63.

The spelling of 68836884444 in words is "sixty-eight billion, eight hundred thirty-six million, eight hundred eighty-four thousand, four hundred forty-four".

Divisors: 1 2 3 4 6 9 12 18 36 571 683 1142 1366 1713 2049 2284 2732 3426 4098 4903 5139 6147 6852 8196 9806 10278 12294 14709 19612 20556 24588 29418 44127 58836 88254 176508 389993 779986 1169979 1559972 2339958 2799613 3348749 3509937 4679916 5599226 6697498 7019874 8398839 10046247 11198452 13394996 14039748 16797678 20092494 25196517 30138741 33595356 40184988 50393034 60277482 100786068 120554964 1912135679 3824271358 5736407037 7648542716 11472814074 17209221111 22945628148 34418442222 68836884444