28168072128

Names of 28168072128

• Cardinal: 28168072128 can be written as Twenty-eight billion, one hundred sixty-eight million, seventy-two thousand, one hundred twenty-eight.

Scientific notation

• Scientific notation: 2.8168072128 × 10¹⁰

Factors of 28168072128

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 500

Divisors of 28168072128

• Number of divisors d(n): 672
• Complete list of divisors:
  1 2 3 4 6 7 8 9 12 14 16 18 19 21 24 28 29 31 32 36 38 42 48 56 57 58 62 63 64 72 76 84 87 93 96 112 114 116 124 126 133 144 152 168 171 174 186 192 203 217 224 228 232 248 252 261 266 279 288 304 336 342 348 372 399 406 409 434 448 456 464 496 504 522 532 551 558 576 589 608 609 651 672 684 696 744 798 812 818 868 899 912 928 992 1008 1044 1064 1102 1116 1178 1197 1216 1218 1227 1302 1344 1368 1392 1488 1596 1624 1636 1653 1736 1767 1798 1824 1827 1856 1953 1984 2016 2088 2128 2204 2232 2356 2394 2436 2454 2604 2697 2736 2784 2863 2976 3192 3248 3272 3306 3472 3534 3596 3648 3654 3681 3857 3906 4032 4123 4176 4256 4408 4464 4712 4788 4872 4908 4959 5208 5301 5394 5472 5568 5726 5952 6293 6384 6496 6544 6612 6944 7068 7192 7308 7362 7714 7771 7812 8091 8246 8352 8512 8589 8816 8928 9424 9576 9744 9816 9918 10416 10602 10788 10944 11452 11571 11861 12369 12586 12679 12768 12992 13088 13224 13888 14136 14384 14616 14724 15428 15542 15624 16182 16492 16704 17081 17178 17632 17856 18848 18879 19152 19488 19632 19836 20832 21204 21576 22904 23142 23313 23722 24738 25172 25358 25536 25767 26176 26448 28272 28768 29232 29448 30856 31084 31248 32364 32984 34162 34356 34713 35264 35583 37107 37696 37758 38037 38304 38976 39264 39672 41664 42408 43152 45808 46284 46626 47444 49476 50344 50716 51243 51534 52896 54397 56544 56637 57536 58464 58896 61712 62168 62496 64728 65968 68324 68712 69426 69939 71166 74214 75516 76074 76608 78528 79344 83027 84816 86304 88753 91616 92568 93252 94888 98952 100688 101432 102486 103068 105792 106749 108794 113088 113274 114111 116928 117792 119567 123424 124336 124992 129456 131936 136648 137424 138852 139878 142332 148428 151032 152148 153729 158688 163191 166054 169632 172608 177506 183232 185136 186504 189776 197904 201376 202864 204972 206136 213498 217588 225359 226548 228222 235584 239134 240901 246848 248672 249081 258912 263872 266259 273296 274848 277704 279756 284664 296856 302064 304296 307458 317376 326382 332108 339264 355012 358701 367691 370272 373008 379552 395808 402752 405728 409944 412272 426996 435176 450718 453096 456444 478268 481802 489573 497344 498162 517824 532518 546592 549696 555408 559512 569328 593712 604128 608592 614916 652764 664216 676077 710024 717402 722703 735382 740544 746016 747243 759104 791616 798777 811456 819888 824544 853992 870352 901436 906192 912888 956536 963604 979146 996324 1065036 1076103 1093184 1103073 1110816 1119024 1138656 1187424 1208256 1217184 1229832 1305528 1328432 1352154 1420048 1434804 1445406 1470764 1492032 1494486 1577513 1597554 1639776 1649088 1686307 1707984 1740704 1802872 1812384 1825776 1913072 1927208 1958292 1992648 2028231 2130072 2152206 2168109 2206146 2221632 2238048 2277312 2374848 2434368 2459664 2573837 2611056 2656864 2704308 2840096 2869608 2890812 2941528 2988972 3155026 3195108 3279552 3309219 3372614 3415968 3481408 3605744 3624768 3651552 3826144 3854416 3916584 3985296 4056462 4260144 4304412 4336218 4412292 4476096 4732539 4919328 5058921 5147674 5222112 5313728 5408616 5680192 5739216 5781624 5883056 5977944 6310052 6390216 6618438 6745228 6831936 6986129 7211488 7303104 7652288 7708832 7721511 7833168 7970592 8112924 8520288 8608824 8672436 8824584 9465078 9838656 10117842 10295348 10444224 10817232 11478432 11563248 11766112 11955888 12620104 12780432 13236876 13490456 13972258 14197617 14422976 15176763 15417664 15443022 15666336 15941184 16225848 17040576 17217648 17344872 17649168 18930156 20235684 20590696 20958387 21634464 22956864 23126496 23164533 23532224 23911776 25240208 25560864 26473752 26980912 27944516 28395234 30353526 30886044 31332672 32451696 34435296 34689744 35298336 37860312 40471368 41181392 41916774 43268928 46252992 46329066 47823552 48902903 50480416 51121728 52947504 53961824 55889032 56790468 60707052 61772088 62875161 64903392 68870592 69379488 70596672 75720624 80942736 82362784 83833548 92658132 97805806 100960832 105895008 107923648 111778064 113580936 121414104 123544176 125750322 129806784 138758976 146708709 151441248 161885472 164725568 167667096 185316264 195611612 211790016 223556128 227161872 242828208 247088352 251500644 293417418 302882496 323770944 335334192 370632528 391223224 440126127 447112256 454323744 485656416 494176704 503001288 586834836 670668384 741265056 782446448 880252254 908647488 971312832 1006002576 1173669672 1341336768 1482530112 1564892896 1760504508 2012005152 2347339344 3129785792 3521009016 4024010304 4694678688 7042018032 9389357376 14084036064 28168072128
• Sum of all divisors σ(n): 103973376000
• Sum of proper divisors (its aliquot sum) s(n): 75805303872
• 28168072128 is an abundant number, because the sum of its proper divisors (75805303872) is greater than itself. Its abundance is 47637231744

Bases of 28168072128

• Binary: 11010001110111100101010101111000000₂
• Hexadecimal: 0x68EF2ABC0
• Base-36: CXUJJK0

Squares and roots of 28168072128

• 28168072128 squared (28168072128²) is 793440287408210448384
• 28168072128 cubed (28168072128³) is 22349683244975522089483733041152
• The square root of 28168072128 is 167833.4654590675
• The cube root of 28168072128 is 3042.6526408279

Scales and comparisons

• 28,168,072,128 seconds is equal to 895 years, 34 weeks, 1 day, 8 hours, 28 minutes, 48 seconds.
• To count from 1 to 28,168,072,128 would take you about one thousand, seven hundred ninety-one 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 28168072128 cubic inches would be around 253.6 feet tall.

Recreational maths with 28168072128

• 28168072128 backwards is 82127086182
• The number of decimal digits it has is: 11
• The sum of 28168072128's digits is 45
• More coming soon!