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68840286000 = 2435311473381
BaseRepresentation
bin100000000011100110…
…0110110011100110000
320120200121010212100020
41000013030312130300
52111441103123000
651342542123440
74654632530163
oct1000714663460
9216617125306
1068840286000
1127216601852
1211412580580
1366510b9c55
1434909b1ada
151bcd8d1ba0
hex1007336730

68840286000 has 80 divisors (see below), whose sum is σ = 221941101408. Its totient is φ = 18357408000.

The previous prime is 68840285989. The next prime is 68840286037. The reversal of 68840286000 is 68204886.

It is a tau number, because it is divible by the number of its divisors (80).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5730691 + ... + 5742690.

Almost surely, 268840286000 is an apocalyptic number.

68840286000 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

68840286000 is an abundant number, since it is smaller than the sum of its proper divisors (153100815408).

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

68840286000 is a wasteful number, since it uses less digits than its factorization.

68840286000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11473407 (or 11473391 counting only the distinct ones).

The product of its (nonzero) digits is 147456, while the sum is 42.

The spelling of 68840286000 in words is "sixty-eight billion, eight hundred forty million, two hundred eighty-six thousand".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 20 24 25 30 40 48 50 60 75 80 100 120 125 150 200 240 250 300 375 400 500 600 750 1000 1200 1500 2000 3000 6000 11473381 22946762 34420143 45893524 57366905 68840286 91787048 114733810 137680572 172100715 183574096 229467620 275361144 286834525 344201430 458935240 550722288 573669050 688402860 860503575 917870480 1147338100 1376805720 1434172625 1721007150 2294676200 2753611440 2868345250 3442014300 4302517875 4589352400 5736690500 6884028600 8605035750 11473381000 13768057200 17210071500 22946762000 34420143000 68840286000