128428609428

Names of 128428609428

• Cardinal: 128428609428 can be written as One hundred twenty-eight billion, four hundred twenty-eight million, six hundred nine thousand, four hundred twenty-eight.

Scientific notation

• Scientific notation: 1.28428609428 × 10¹¹

Factors of 128428609428

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 15
• Sum of prime factors: 129

Divisors of 128428609428

• Number of divisors d(n): 648
• Complete list of divisors:
  1 2 3 4 6 7 9 12 14 17 18 21 27 28 34 36 41 42 51 54 59 63 68 81 82 84 102 108 118 119 123 126 153 162 164 177 189 204 236 238 243 246 252 287 289 306 324 354 357 369 378 413 459 476 486 492 531 567 574 578 612 697 708 714 729 738 756 826 861 867 918 972 1003 1062 1071 1107 1134 1148 1156 1239 1377 1394 1428 1458 1476 1593 1652 1701 1722 1734 1836 2006 2023 2091 2124 2142 2187 2214 2268 2419 2478 2583 2601 2754 2788 2916 3009 3186 3213 3321 3402 3444 3468 3717 4012 4046 4131 4182 4284 4374 4428 4779 4838 4879 4956 5103 5166 5202 5508 6018 6069 6273 6372 6426 6561 6642 6804 7021 7257 7434 7749 7803 8092 8262 8364 8748 9027 9558 9639 9676 9758 9963 10206 10332 10404 11151 11849 12036 12138 12393 12546 12852 13122 13284 14042 14337 14514 14637 14868 15309 15498 15606 16524 16933 17051 18054 18207 18819 19116 19278 19516 19926 20412 21063 21771 22302 23247 23409 23698 24276 24786 25092 26244 27081 28084 28674 28917 29028 29274 29889 30618 30996 31212 33453 33866 34102 35547 36108 36414 37179 37638 38556 39852 41123 42126 43011 43542 43911 44604 45927 46494 46818 47396 49572 50799 51153 54162 54621 56457 57348 57834 58548 59778 61236 63189 65313 66906 67732 68204 69741 70227 71094 72828 74358 75276 81243 82246 82943 84252 86022 86751 87084 87822 89667 91854 92988 93636 100359 101598 102306 106641 108324 109242 111537 112914 115668 119357 119556 123369 126378 129033 130626 131733 133812 139482 140454 142188 148716 152397 153459 162486 163863 164492 165886 169371 172044 173502 175644 179334 183708 189567 195939 200718 203196 204612 209223 210681 213282 218484 223074 225828 238714 243729 246738 248829 252756 258066 260253 261252 263466 269001 278964 280908 287861 301077 304794 306918 319923 324972 327726 331772 338742 347004 358071 358668 370107 379134 387099 391878 395199 401436 418446 421362 426564 446148 457191 460377 477428 487458 491589 493476 497658 508113 516132 520506 526932 538002 568701 575722 587817 602154 609588 613836 627669 632043 639846 655452 677484 699091 716142 731187 740214 746487 758268 774198 780759 783756 790398 836892 842724 863583 903231 914382 920754 959769 974916 983178 995316 1016226 1041012 1074213 1076004 1110321 1137402 1151444 1175634 1185597 1204308 1255338 1264086 1279692 1371573 1381131 1398182 1432284 1462374 1474767 1480428 1492974 1524339 1548396 1561518 1580796 1706103 1727166 1763451 1806462 1828764 1841508 1883007 1896129 1919538 1966356 2032452 2097273 2148426 2193561 2220642 2239461 2274804 2351268 2371194 2510676 2528172 2590749 2709693 2743146 2762262 2796364 2879307 2924748 2949534 2985948 3048678 3123036 3222639 3330963 3412206 3454332 3526902 3556791 3612924 3766014 3792258 3839076 4114719 4143393 4194546 4296852 4387122 4424301 4441284 4478922 4573017 4742388 4893637 5118309 5181498 5290353 5419386 5486292 5524524 5758614 5899068 6097356 6291819 6445278 6580683 6661926 6718383 6824412 7053804 7113582 7532028 7584516 7772247 8229438 8286786 8389092 8637921 8774244 8848602 8957844 9146034 9667917 9787274 9992889 10236618 10362996 10580706 10670373 10838772 11517228 12344157 12430179 12583638 12890556 13161366 13272903 13323852 13436766 14227164 14680911 15354927 15544494 15871059 16458876 16573572 17275842 17697204 18292068 18875457 19335834 19574548 19985778 20155149 20473236 21161412 21340746 23316741 24688314 24860358 25167276 25913763 26322732 26545806 26873532 29003751 29361822 29978667 30709854 31088988 31742118 32011119 34551684 37032471 37290537 37750914 38671668 39971556 40310298 42681492 44042733 46064781 46633482 49376628 49720716 51827526 53091612 56626371 58007502 58723644 59957334 60465447 61419708 63484236 64022238 69950223 74064942 74581074 75501828 77741289 80620596 87011253 88085466 89936001 92129562 93266964 103655052 111097413 111871611 113252742 116015004 119914668 120930894 128044476 132128199 139900446 148129884 149162148 155482578 169879113 174022506 176170932 179872002 181396341 184259124 209850669 222194826 223743222 226505484 241861788 261033759 264256398 269808003 279800892 310965156 339758226 348045012 359744004 362792682 396384597 419701338 444389652 447486444 509637339 522067518 528512796 539616006 544189023 629552007 679516452 725585364 783101277 792769194 839402676 1019274678 1044135036 1079232012 1088378046 1189153791 1259104014 1528912017 1566202554 1585538388 1888656021 2038549356 2176756092 2378307582 2518208028 3057824034 3132405108 3567461373 3777312042 4586736051 4756615164 6115648068 7134922746 7554624084 9173472102 10702384119 14269845492 18346944204 21404768238 32107152357 42809536476 64214304714 128428609428
• Sum of all divisors σ(n): 426349909440
• Sum of proper divisors (its aliquot sum) s(n): 297921300012
• 128428609428 is an abundant number, because the sum of its proper divisors (297921300012) is greater than itself. Its abundance is 169492690584

Bases of 128428609428

• Binary: 1110111100110111100010000111110010100₂
• Hexadecimal: 0x1DE6F10F94
• Base-36: 1MZZ2T90

Squares and roots of 128428609428

• 128428609428 squared (128428609428²) is 16493907719609770487184
• 128428609428 cubed (128428609428³) is 2118289632463237350471275215570752
• The square root of 128428609428 is 358369.3756838047
• The cube root of 128428609428 is 5045.3030788673

Scales and comparisons

• 128,428,609,428 seconds is equal to 4,083 years, 32 weeks, 6 days, 5 hours, 43 minutes, 48 seconds.
• To count from 1 to 128,428,609,428 would take you about eight thousand, one hundred sixty-seven 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 128428609428 cubic inches would be around 420.4 feet tall.

Recreational maths with 128428609428

• 128428609428 backwards is 824906824821
• 128428609428 is a Harshad number.
• The number of decimal digits it has is: 12
• The sum of 128428609428's digits is 54
• More coming soon!