128918361936

Names of 128918361936

• Cardinal: 128918361936 can be written as One hundred twenty-eight billion, nine hundred eighteen million, three hundred sixty-one thousand, nine hundred thirty-six.

Scientific notation

• Scientific notation: 1.28918361936 × 10¹¹

Factors of 128918361936

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 375

Divisors of 128918361936

• Number of divisors d(n): 480
• Complete list of divisors:
  1 2 3 4 6 7 8 12 13 14 16 19 21 24 26 28 38 39 42 48 52 56 57 76 78 84 91 104 112 114 133 152 156 168 169 182 208 228 247 266 273 304 312 331 336 338 361 364 399 456 494 507 532 546 624 662 676 722 728 741 798 912 988 993 1014 1064 1083 1092 1183 1324 1352 1444 1456 1482 1596 1729 1976 1986 2028 2128 2166 2184 2317 2366 2527 2648 2704 2888 2964 3192 3211 3458 3549 3952 3972 4056 4303 4332 4368 4634 4693 4732 5054 5187 5296 5776 5928 6289 6384 6422 6859 6916 6951 7098 7581 7944 8112 8606 8664 9268 9386 9464 9633 10108 10374 11856 12578 12844 12909 13718 13832 13902 14079 14196 15162 15888 17212 17328 18536 18772 18867 18928 19266 20216 20577 20748 22477 25156 25688 25818 27436 27664 27804 28158 28392 30121 30324 32851 34424 37072 37544 37734 38532 40432 41154 41496 44023 44954 48013 50312 51376 51636 54872 55608 55939 56316 56784 60242 60648 61009 65702 67431 68848 75088 75468 77064 81757 82308 82992 88046 89167 89908 90363 96026 98553 100624 103272 109744 111216 111878 112632 119491 120484 121296 122018 131404 132069 134862 144039 150936 154128 163514 164616 167817 176092 178334 179816 180726 183027 192052 197106 206544 223756 225264 238982 240968 244036 245271 262808 264138 267501 269724 288078 301872 327028 329232 335634 352184 356668 358473 359632 361452 366054 384104 391573 394212 427063 447512 477964 481936 488072 490542 525616 528276 535002 539448 572299 576156 624169 654056 671268 704368 713336 716946 722904 732108 768208 783146 788424 836437 854126 895024 955928 976144 981084 1056552 1062841 1070004 1078896 1144598 1152312 1159171 1174719 1248338 1281189 1308112 1342536 1426672 1433892 1445808 1464216 1553383 1566292 1576848 1672874 1708252 1716897 1872507 1911856 1962168 2113104 2125682 2140008 2270329 2289196 2304624 2318342 2349438 2496676 2509311 2562378 2685072 2867784 2928432 3106766 3132584 3188523 3345748 3416504 3433794 3477513 3745014 3924336 4251364 4280016 4540658 4578392 4636684 4660149 4698876 4993352 5018622 5124756 5735568 6213532 6265168 6377046 6691496 6810987 6833008 6867588 6955026 7439887 7490028 8114197 8502728 9081316 9156784 9273368 9320298 9397752 9986704 10037244 10249512 10873681 12427064 12754092 13382992 13621974 13735176 13910052 14879774 14980056 15892303 16228394 17005456 18162632 18546736 18640596 18795504 20074488 20193979 20499024 21747362 22319661 24342591 24854128 25508184 27243948 27470352 27820104 29514277 29759548 29960112 31784606 32456788 32621043 36325264 37281192 40148976 40387958 43494724 44639322 47676909 48685182 51016368 54487896 55640208 59028554 59519096 60581937 63569212 64913576 65242086 74562384 80775916 86989448 88542831 89278644 95353818 97370364 108975792 118057108 119038192 121163874 127138424 129827152 130484172 141357853 161551832 173978896 177085662 178557288 190707636 194740728 206599939 236114216 242327748 254276848 260968344 282715706 323103664 354171324 357114576 381415272 383685601 389481456 413199878 424073559 472228432 484655496 521936688 565431412 619799817 708342648 762830544 767371202 826399756 848147118 969310992 1130862824 1151056803 1239599634 1416685296 1534742404 1652799512 1696294236 2261725648 2302113606 2479199268 2685799207 3069484808 3305599024 3392588472 4604227212 4958398536 5371598414 6138969616 6785176944 8057397621 9208454424 9916797072 10743196828 16114795242 18416908848 21486393656 32229590484 42972787312 64459180968 128918361936
• Sum of all divisors σ(n): 436354452480
• Sum of proper divisors (its aliquot sum) s(n): 307436090544
• 128918361936 is an abundant number, because the sum of its proper divisors (307436090544) is greater than itself. Its abundance is 178517728608

Bases of 128918361936

• Binary: 1111000000100001000100001011101010000₂
• Hexadecimal: 0x1E04221750
• Base-36: 1N82NWPC

Squares and roots of 128918361936

• 128918361936 squared (128918361936²) is 16619944044261493668096
• 128918361936 cubed (128918361936³) is 2142615961654170844531572383993856
• The square root of 128918361936 is 359052.0323518585
• The cube root of 128918361936 is 5051.7082341253

Scales and comparisons

• 128,918,361,936 seconds is equal to 4,099 years, 10 weeks, 4 days, 16 hours, 5 minutes, 36 seconds.
• To count from 1 to 128,918,361,936 would take you about eight thousand, one hundred ninety-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 128918361936 cubic inches would be around 421 feet tall.

Recreational maths with 128918361936

• 128918361936 backwards is 639163819821
• 128918361936 is a Harshad number.
• The number of decimal digits it has is: 12
• The sum of 128918361936's digits is 57
• More coming soon!