128990685824

Names of 128990685824

• Cardinal: 128990685824 can be written as One hundred twenty-eight billion, nine hundred ninety million, six hundred eighty-five thousand, eight hundred twenty-four.

Scientific notation

• Scientific notation: 1.28990685824 × 10¹¹

Factors of 128990685824

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 15
• Sum of prime factors: 93

Divisors of 128990685824

• Number of divisors d(n): 768
• Complete list of divisors:
  1 2 4 7 8 11 13 14 16 22 23 26 28 32 37 44 46 49 52 56 64 74 77 88 91 92 98 104 112 128 143 148 154 161 169 176 182 184 196 208 224 253 259 286 296 299 308 322 338 352 364 368 392 407 416 448 481 506 518 539 572 592 598 616 637 644 676 704 728 736 784 814 832 851 896 962 1001 1012 1036 1078 1127 1144 1183 1184 1196 1232 1274 1288 1352 1408 1456 1472 1568 1628 1664 1702 1771 1813 1859 1924 2002 2024 2072 2093 2156 2197 2254 2288 2366 2368 2392 2464 2548 2576 2704 2849 2912 2944 3136 3256 3289 3367 3404 3542 3626 3718 3848 3887 4004 4048 4144 4186 4312 4394 4508 4576 4732 4736 4784 4928 5096 5152 5291 5408 5698 5824 5957 6253 6272 6512 6578 6734 6808 7007 7084 7252 7436 7696 7774 8008 8096 8281 8288 8372 8624 8788 9016 9152 9361 9464 9568 9856 10192 10304 10582 10816 11063 11396 11648 11914 12397 12506 13013 13024 13156 13468 13616 14014 14168 14504 14651 14872 15379 15392 15548 16016 16192 16562 16576 16744 17248 17576 18032 18304 18722 18928 19136 19943 20384 20608 21164 21632 22126 22792 23023 23569 23828 24167 24794 25012 26026 26048 26312 26936 27209 27232 28028 28336 29008 29302 29744 30758 30784 31096 32032 32384 33124 33152 33488 34496 35152 36064 37037 37444 37856 38272 39886 40768 41699 42328 42757 43771 44252 45584 46046 47138 47656 48334 49588 50024 50531 52052 52096 52624 53872 54418 54464 56056 56672 58016 58604 59488 61516 61568 62192 64064 65527 66248 66976 68783 68992 70304 72128 74074 74888 75712 77441 79772 81289 81536 83398 84656 85514 87542 88504 91091 91168 92092 94276 95312 96668 99176 100048 101062 104104 105248 107653 107744 108836 108928 112112 113344 116032 117208 118976 121693 123032 124384 128128 131054 132496 133952 137566 140608 143819 144256 148148 149776 151424 154882 159544 161161 162578 166796 169169 169312 171028 175084 177008 182182 182336 184184 188552 190463 190624 193336 198352 200096 202124 208208 210496 215306 215488 217672 224224 226688 232064 234416 237952 243386 246064 248768 259259 262108 264992 267904 275132 281216 287638 296296 299299 299552 306397 309764 319088 322322 325156 333592 338338 338624 342056 350168 353717 354016 364364 364672 368368 377104 380926 381248 386672 396704 400192 404248 416416 420992 430612 430976 435344 448448 458689 468832 481481 486772 492128 497536 518518 524216 529984 542087 550264 555841 569023 575276 592592 598598 599104 612794 619528 638176 644644 650312 667184 676676 677248 684112 700336 707434 708032 728728 736736 754208 761852 762496 773344 793408 800384 808496 832832 851851 861224 870688 894179 896896 917378 937664 962962 973544 984256 1006733 1037036 1048432 1059968 1084174 1100528 1111682 1138046 1150552 1184183 1185184 1197196 1198208 1225588 1239056 1276352 1289288 1300624 1334368 1353352 1368224 1400672 1414868 1416064 1457456 1473472 1508416 1523704 1546688 1582009 1586816 1616992 1665664 1703702 1722448 1741376 1788358 1834756 1869647 1875328 1925924 1947088 1968512 2013466 2074072 2095093 2096864 2168348 2201056 2223364 2276092 2301104 2368366 2370368 2394392 2451176 2476019 2478112 2552704 2578576 2601248 2668736 2706704 2736448 2801344 2829736 2914912 2946944 3016832 3047408 3093376 3164018 3233984 3370367 3407404 3444896 3482752 3576716 3669512 3739294 3851848 3890887 3894176 3983161 4026932 4148144 4190186 4193728 4336696 4402112 4446728 4552184 4602208 4736732 4740736 4788784 4902352 4952038 4956224 5157152 5202496 5337472 5413408 5472896 5602688 5659472 5829824 5962957 6094816 6259253 6328036 6467968 6740734 6814808 6889792 7047131 7153432 7339024 7478588 7703696 7781774 7788352 7966322 8053864 8296288 8380372 8387456 8673392 8804224 8893456 9104368 9204416 9473464 9577568 9804704 9904076 9912448 10314304 10404992 10826816 11074063 11318944 11659648 11925914 12189632 12518506 12656072 13087529 13481468 13629616 13779584 14094262 14306864 14678048 14957176 15407392 15563548 15576704 15932644 16107728 16592576 16760744 17346784 17786912 18208736 18408832 18946928 19155136 19609408 19808152 20566117 20628608 21653632 22148126 22637888 23851828 24379264 25037012 25312144 26175058 26962936 27236209 27259232 28188524 28613728 29356096 29914352 30814784 31127096 31865288 32215456 33185152 33521488 34693568 35573824 36417472 37893856 38310272 39218816 39616304 41132234 43814771 44296252 45275776 47703656 50074024 50624288 52350116 53925872 54472418 54518464 56377048 57227456 58712192 59828704 61629568 62254192 63730576 64430912 67042976 69387136 71147648 72834944 75787712 77518441 79232608 82264468 87629542 88592504 91612703 95407312 100148048 101248576 104700232 107851744 108944836 109036928 112754096 114454912 119657408 124508384 127461152 128861824 134085952 143962819 151575424 155036882 158465216 164528936 175259084 177185008 183225406 190814624 200296096 202497152 209400464 215703488 217889672 225508192 239314816 249016768 254922304 268171904 287925638 310073764 316930432 329057872 350518168 354370016 366450812 381629248 400592192 418800928 431406976 435779344 451016384 498033536 509844608 575851276 620147528 658115744 701036336 708740032 732901624 763258496 801184384 837601856 871558688 902032768 1007739733 1151702552 1240295056 1316231488 1402072672 1417480064 1465803248 1675203712 1743117376 2015479466 2303405104 2480590112 2632462976 2804145344 2931606496 3486234752 4030958932 4606810208 4961180224 5608290688 5863212992 8061917864 9213620416 9922360448 11726425984 16123835728 18427240832 32247671456 64495342912 128990685824
• Sum of all divisors σ(n): 378589075200
• Sum of proper divisors (its aliquot sum) s(n): 249598389376
• 128990685824 is an abundant number, because the sum of its proper divisors (249598389376) is greater than itself. Its abundance is 120607703552

Bases of 128990685824

• Binary: 1111000001000011100011010101010000000₂
• Hexadecimal: 0x1E0871AA80
• Base-36: 1N99Q268

Squares and roots of 128990685824

• 128990685824 squared (128990685824²) is 16638597029345874558976
• 128990685824 cubed (128990685824³) is 2146224041964493413467387775156224
• The square root of 128990685824 is 359152.7332820955
• The cube root of 128990685824 is 5052.6527359365

Scales and comparisons

• 128,990,685,824 seconds is equal to 4,101 years, 26 weeks, 1 day, 18 hours, 3 minutes, 44 seconds.
• To count from 1 to 128,990,685,824 would take you about eight thousand, two hundred three 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 128990685824 cubic inches would be around 421.1 feet tall.

Recreational maths with 128990685824

• 128990685824 backwards is 428586099821
• The number of decimal digits it has is: 12
• The sum of 128990685824's digits is 62
• More coming soon!