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68089683600 = 24325243492
BaseRepresentation
bin111111011010011101…
…100001111010010000
320111202021202022102100
4333122131201322100
52103421424333400
651140250120400
74630216522041
oct773235417220
9214667668370
1068089683600
1126970940094
1211243120100
136561741213
14341d0248c8
151b87a66100
hexfda761e90

68089683600 has 135 divisors (see below), whose sum is σ = 236344460443. Its totient is φ = 18153073920.

The previous prime is 68089683593. The next prime is 68089683637. The reversal of 68089683600 is 638698086.

The square root of 68089683600 is 260940.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 33475825296 + 34613858304 = 182964^2 + 186048^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 15654226 + ... + 15658574.

Almost surely, 268089683600 is an apocalyptic number.

68089683600 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

68089683600 is the 260940-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68089683600

68089683600 is an abundant number, since it is smaller than the sum of its proper divisors (168254776843).

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

68089683600 is an equidigital number, since it uses as much as digits as its factorization.

68089683600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8722 (or 4359 counting only the distinct ones).

The product of its (nonzero) digits is 2985984, while the sum is 54.

It can be divided in two parts, 68089 and 683600, that added together give a square (751689 = 8672).

The spelling of 68089683600 in words is "sixty-eight billion, eighty-nine million, six hundred eighty-three thousand, six hundred".

Divisors: 1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 25 30 36 40 45 48 50 60 72 75 80 90 100 120 144 150 180 200 225 240 300 360 400 450 600 720 900 1200 1800 3600 4349 8698 13047 17396 21745 26094 34792 39141 43490 52188 65235 69584 78282 86980 104376 108725 130470 156564 173960 195705 208752 217450 260940 313128 326175 347920 391410 434900 521880 626256 652350 782820 869800 978525 1043760 1304700 1565640 1739600 1957050 2609400 3131280 3914100 5218800 7828200 15656400 18913801 37827602 56741403 75655204 94569005 113482806 151310408 170224209 189138010 226965612 283707015 302620816 340448418 378276020 453931224 472845025 567414030 680896836 756552040 851121045 907862448 945690050 1134828060 1361793672 1418535075 1513104080 1702242090 1891380100 2269656120 2723587344 2837070150 3404484180 3782760200 4255605225 4539312240 5674140300 6808968360 7565520400 8511210450 11348280600 13617936720 17022420900 22696561200 34044841800 68089683600