129513727728

Names of 129513727728

• Cardinal: 129513727728 can be written as One hundred twenty-nine billion, five hundred thirteen million, seven hundred twenty-seven thousand, seven hundred twenty-eight.

Scientific notation

• Scientific notation: 1.29513727728 × 10¹¹

Factors of 129513727728

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 1156

Divisors of 129513727728

• Number of divisors d(n): 480
• Complete list of divisors:
  1 2 3 4 6 7 8 9 11 12 14 16 18 21 22 24 28 33 36 41 42 44 48 56 63 66 72 77 82 84 88 99 112 123 126 132 144 154 164 168 176 198 231 246 252 264 287 308 328 336 369 396 431 451 462 492 504 528 574 616 656 661 693 738 792 861 862 902 924 984 1008 1148 1232 1293 1322 1353 1386 1476 1584 1722 1724 1804 1848 1968 1983 2296 2583 2586 2644 2706 2772 2952 3017 3157 3444 3448 3608 3696 3879 3966 4059 4592 4627 4741 5166 5172 5288 5412 5544 5904 5949 6034 6314 6888 6896 7216 7271 7758 7932 8118 9051 9254 9471 9482 10332 10344 10576 10824 11088 11898 12068 12628 13776 13881 14223 14542 15516 15864 16236 17671 18102 18508 18942 18964 20664 20688 21648 21813 23796 24136 25256 27101 27153 27762 28413 28446 29084 31032 31728 32472 33187 35342 36204 37016 37884 37928 41328 41643 42669 43626 47592 48272 50512 50897 53013 54202 54306 55524 56826 56892 58168 62064 64944 65439 66374 70684 72408 74032 75768 75856 81303 83286 85338 87252 95184 99561 101794 106026 108404 108612 111048 113652 113784 116336 123697 130878 132748 141368 144816 151536 152691 159039 162606 166572 170676 174504 189707 194381 199122 203588 212052 216808 217224 222096 227304 227568 243909 247394 261756 265496 282736 284891 298111 298683 305382 318078 325212 333144 341352 349008 371091 379414 388762 398244 407176 424104 433616 434448 454608 458073 487818 494788 523512 530992 569121 569782 583143 596222 597366 610764 636156 650424 666288 682704 742182 758828 777524 796488 814352 848208 854673 894333 916146 975636 989576 1047024 1113273 1138242 1139564 1166286 1192444 1194732 1221528 1272312 1300848 1360667 1484364 1517656 1555048 1592976 1707363 1709346 1749429 1788666 1832292 1951272 1979152 1994237 2086777 2226546 2276484 2279128 2332572 2384888 2389464 2443056 2544624 2564019 2682999 2721334 2968728 3035312 3110096 3133801 3414726 3418692 3498858 3577332 3664584 3902544 3988474 4082001 4173554 4453092 4552968 4558256 4665144 4769776 4778928 5128038 5365998 5442668 5937456 5982711 6260331 6267602 6829452 6837384 6997716 7154664 7329168 7976948 8164002 8347108 8906184 9105936 9330288 9401403 10256076 10731996 10885336 11680531 11965422 12246003 12520662 12535204 13658904 13674768 13995432 14309328 15953896 16328004 16694216 17812368 17948133 18780993 18802806 20512152 21463992 21770672 21936607 23361062 23930844 24492006 25041324 25070408 27317808 27990864 28204209 31907792 32656008 33388432 35041593 35896266 37561986 37605612 41024304 42927984 43873214 46722124 47861688 48984012 50082648 50140816 56408418 65312016 65809821 70083186 71792532 75123972 75211224 81763717 87746428 93444248 95723376 97968024 100165296 105124779 112816836 128485841 131619642 140166372 143585064 150247944 150422448 163527434 175492856 186888496 195936048 197429463 210249558 225633672 245291151 256971682 263239284 280332744 287170128 300495888 327054868 350985712 385457523 394858926 420499116 451267344 490582302 513943364 526478568 560665488 654109736 735873453 770915046 789717852 840998232 899400887 981164604 1027886728 1052957136 1156372569 1308219472 1471746906 1541830092 1579435704 1681996464 1798801774 1962329208 2055773456 2312745138 2698202661 2943493812 3083660184 3158871408 3597603548 3924658416 4625490276 5396405322 5886987624 6167320368 7195207096 8094607983 9250980552 10792810644 11773975248 14390414192 16189215966 18501961104 21585621288 32378431932 43171242576 64756863864 129513727728
• Sum of all divisors σ(n): 464694257664
• Sum of proper divisors (its aliquot sum) s(n): 335180529936
• 129513727728 is an abundant number, because the sum of its proper divisors (335180529936) is greater than itself. Its abundance is 205666802208

Bases of 129513727728

• Binary: 1111000100111100111101010011011110000₂
• Hexadecimal: 0x1E279EA6F0
• Base-36: 1NHX4NW0

Squares and roots of 129513727728

• 129513727728 squared (129513727728²) is 16773805670002516041984
• 129513727728 cubed (129513727728³) is 2172438100507088479736467992932352
• The square root of 129513727728 is 359880.1574524497
• The cube root of 129513727728 is 5059.4728281631

Scales and comparisons

• 129,513,727,728 seconds is equal to 4,118 years, 7 weeks, 11 hours, 28 minutes, 48 seconds.
• To count from 1 to 129,513,727,728 would take you about eight thousand, two hundred thirty-six 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 129513727728 cubic inches would be around 421.6 feet tall.

Recreational maths with 129513727728

• 129513727728 backwards is 827727315921
• The number of decimal digits it has is: 12
• The sum of 129513727728's digits is 54
• More coming soon!