428618921172

Names of 428618921172

• Cardinal: 428618921172 can be written as Four hundred twenty-eight billion, six hundred eighteen million, nine hundred twenty-one thousand, one hundred seventy-two.

Scientific notation

• Scientific notation: 4.28618921172 × 10¹¹

Factors of 428618921172

• Number of distinct prime factors ω(n): 8
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 1245

Divisors of 428618921172

• Number of divisors d(n): 384
• Complete list of divisors:
  1 2 3 4 6 12 13 17 19 26 31 34 38 39 51 52 57 62 68 76 78 93 102 114 124 156 186 204 221 228 247 323 331 372 403 442 494 527 589 646 662 663 741 806 829 884 969 988 993 1054 1178 1209 1292 1324 1326 1482 1581 1612 1658 1767 1938 1986 2108 2356 2418 2487 2652 2964 3162 3316 3534 3876 3972 4199 4303 4836 4974 5627 6289 6324 6851 7068 7657 8398 8606 9948 10013 10261 10777 11254 12578 12597 12909 13702 14093 15314 15751 16796 16881 17212 18867 20026 20522 20553 21554 22508 22971 25156 25194 25699 25818 27404 28186 30039 30628 30783 31502 32331 33762 37734 40052 41044 41106 42279 43108 45942 47253 50388 51398 51636 56372 60078 61566 63004 64662 67524 73151 75468 77097 81757 82212 84558 91884 94506 102796 106913 120156 123132 129324 130169 133393 146302 154194 163514 169116 174437 183209 189012 194959 204763 213826 219453 245271 260338 266786 267767 274399 292604 308388 320739 327028 334087 348874 366418 389918 390507 400179 409526 427652 436883 438906 488281 490542 520676 523311 533572 535534 548798 549627 584877 614289 641478 668174 697748 732836 779836 781014 800358 803301 819052 823197 873766 877812 976562 981084 1002261 1046622 1071068 1097596 1099254 1169754 1228578 1282956 1310649 1336348 1389869 1464843 1562028 1600716 1606602 1646394 1747532 1953124 2004522 2093244 2198508 2267681 2339508 2457156 2534467 2621298 2779738 2929686 3213204 3292788 3314303 3480971 3567187 4009044 4169607 4535362 4664783 5068934 5213581 5242596 5559476 5679479 5859372 6347653 6628606 6803043 6961942 7134374 7603401 8300777 8339214 8506369 9070724 9329566 9942909 10137868 10427162 10442913 10701561 11358958 12695306 13257212 13606086 13923884 13994349 14268748 15206802 15640743 16601554 16678428 17012738 17038437 18659132 19042959 19885818 20854324 20885826 21403122 22717916 24902331 25390612 25519107 27212172 27988698 30413604 31281486 33203108 34025476 34076874 38085918 39771636 41771652 42806244 43085939 49804662 51038214 55977396 60642179 62562972 67776553 68153748 76171836 86171878 88630877 99609324 102076428 107910101 110582797 121284358 129257817 135553106 144608273 161621011 172343756 177261754 181926537 203329659 215820202 221165594 242568716 258515634 265892631 271106212 289216546 323242022 323730303 331748391 354523508 363853074 406659318 431640404 433824819 442331188 484863033 517031268 531785262 578433092 646484044 647460606 663496782 727706148 813318636 867649638 969726066 1063570524 1152201401 1294921212 1326993564 1735299276 1879907549 1939452132 2101073143 2304402802 2747557187 3456604203 3759815098 4202146286 4608805604 5495114374 5639722647 6303219429 6913208406 7519630196 8242671561 8404292572 10990228748 11279445294 12606438858 13826416812 16485343122 22558890588 25212877716 32970686244 35718243431 71436486862 107154730293 142872973724 214309460586 428618921172
• Sum of all divisors σ(n): 1244384870400
• Sum of proper divisors (its aliquot sum) s(n): 815765949228
• 428618921172 is an abundant number, because the sum of its proper divisors (815765949228) is greater than itself. Its abundance is 387147028056

Bases of 428618921172

• Binary: 110001111001011101011011011010011010100₂
• Hexadecimal: 0x63CBADB4D4
• Base-36: 5GWKN07O

Squares and roots of 428618921172

• 428618921172 squared (428618921172²) is 183714179586649149853584
• 428618921172 cubed (428618921172³) is 78743373458428623504714135837680448
• The square root of 428618921172 is 654689.9427759679
• The cube root of 428618921172 is 7539.7528993077

Scales and comparisons

• 428,618,921,172 seconds is equal to 13,628 years, 39 weeks, 2 days, 3 hours, 26 minutes, 12 seconds.
• To count from 1 to 428,618,921,172 would take you about twenty-seven thousand, two hundred fifty-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 428618921172 cubic inches would be around 628.3 feet tall.

Recreational maths with 428618921172

• 428618921172 backwards is 271129816824
• 428618921172 is a Harshad number.
• The number of decimal digits it has is: 12
• The sum of 428618921172's digits is 51
• More coming soon!