28128165120

Names of 28128165120

• Cardinal: 28128165120 can be written as Twenty-eight billion, one hundred twenty-eight million, one hundred sixty-five thousand, one hundred twenty.

Scientific notation

• Scientific notation: 2.812816512 × 10¹⁰

Factors of 28128165120

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 14
• Sum of prime factors: 3401

Divisors of 28128165120

• Number of divisors d(n): 432
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 11 12 15 16 18 20 22 24 30 32 33 36 40 44 45 48 55 60 64 66 67 72 80 88 90 96 99 110 120 128 132 134 144 160 165 176 180 192 198 201 220 240 256 264 268 288 320 330 335 352 360 384 396 402 440 480 495 528 536 576 603 640 660 670 704 720 737 768 792 804 880 960 990 1005 1056 1072 1152 1206 1280 1320 1340 1408 1440 1474 1584 1608 1760 1920 1980 2010 2112 2144 2211 2304 2412 2640 2680 2816 2880 2948 3015 3168 3216 3313 3520 3685 3840 3960 4020 4224 4288 4422 4824 5280 5360 5760 5896 6030 6336 6432 6626 6633 7040 7370 7920 8040 8448 8576 8844 9648 9939 10560 10720 11055 11520 11792 12060 12672 12864 13252 13266 14080 14740 15840 16080 16565 17152 17688 19296 19878 21120 21440 22110 23584 24120 25344 25728 26504 26532 29480 29817 31680 32160 33130 33165 35376 36443 38592 39756 42240 42880 44220 47168 48240 49695 51456 53008 53064 58960 59634 63360 64320 66260 66330 70752 72886 77184 79512 85760 88440 94336 96480 99390 106016 106128 109329 117920 119268 126720 128640 132520 132660 141504 145772 149085 154368 159024 176880 182215 188672 192960 198780 212032 212256 218658 221971 235840 238536 257280 265040 265320 283008 291544 298170 318048 327987 353760 364430 385920 397560 424064 424512 437316 443942 471680 477072 530080 530640 546645 566016 583088 596340 636096 655974 665913 707520 728860 771840 795120 848128 849024 874632 887884 943360 954144 1060160 1061280 1093290 1109855 1166176 1192680 1272192 1311948 1331826 1415040 1457720 1590240 1639935 1698048 1749264 1775768 1908288 1997739 2120320 2122560 2186580 2219710 2332352 2385360 2441681 2544384 2623896 2663652 2830080 2915440 3180480 3279870 3329565 3498528 3551536 3816576 3995478 4240640 4245120 4373160 4439420 4664704 4770720 4883362 5247792 5327304 5830880 6360960 6559740 6659130 6997056 7103072 7325043 7633152 7990956 8490240 8746320 8878840 9329408 9541440 9766724 9988695 10495584 10654608 11661760 12208405 12721920 13119480 13318260 13994112 14206144 14650086 15981912 17492640 17757680 19082880 19533448 19977390 20991168 21309216 21975129 23323520 24416810 26238960 26636520 27988224 28412288 29300172 31963824 34985280 35515360 36625215 38165760 39066896 39954780 41982336 42618432 43950258 46647040 48833620 52477920 53273040 56824576 58600344 63927648 69970560 71030720 73250430 78133792 79909560 83964672 85236864 87900516 97667240 104955840 106546080 109875645 117200688 127855296 139941120 142061440 146500860 156267584 159819120 170473728 175801032 195334480 209911680 213092160 219751290 234401376 255710592 284122880 293001720 312535168 319638240 351602064 390668960 419823360 426184320 439502580 468802752 511421184 586003440 625070336 639276480 703204128 781337920 852368640 879005160 937605504 1172006880 1278552960 1406408256 1562675840 1758010320 1875211008 2344013760 2557105920 2812816512 3125351680 3516020640 4688027520 5625633024 7032041280 9376055040 14064082560 28128165120
• Sum of all divisors σ(n): 107784960192
• Sum of proper divisors (its aliquot sum) s(n): 79656795072
• 28128165120 is an abundant number, because the sum of its proper divisors (79656795072) is greater than itself. Its abundance is 51528629952

Bases of 28128165120

• Binary: 11010001100100100011011110100000000₂
• Hexadecimal: 0x68C91BD00
• Base-36: CX6S740

Squares and roots of 28128165120

• 28128165120 squared (28128165120²) is 791193673017984614400
• 28128165120 cubed (28128165120³) is 22254826276549159963462729728000
• The square root of 28128165120 is 167714.5346116431
• The cube root of 28128165120 is 3041.2150729101

Scales and comparisons

• 28,128,165,120 seconds is equal to 894 years, 20 weeks, 1 day, 11 hours, 12 minutes.
• To count from 1 to 28,128,165,120 would take you about one thousand, seven hundred eighty-eight years!

  This is a very rough estimate, based on a speaking rate of half a second every third order of magnitude. If you speak quickly, you could probably say any randomly-chosen number between one and a thousand in around half a second. Very big numbers obviously take longer to say, so we add half a second for every extra x1000. (We do not count involuntary pauses, bathroom breaks or the necessity of sleep in our calculation!)

• A cube with a volume of 28128165120 cubic inches would be around 253.4 feet tall.

Recreational maths with 28128165120

• 28128165120 backwards is 02156182182
• 28128165120 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 28128165120's digits is 36
• More coming soon!