129435806720

Names of 129435806720

• Cardinal: 129435806720 can be written as One hundred twenty-nine billion, four hundred thirty-five million, eight hundred six thousand, seven hundred twenty.

Scientific notation

• Scientific notation: 1.2943580672 × 10¹¹

Factors of 129435806720

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 16
• Sum of prime factors: 206

Divisors of 129435806720

• Number of divisors d(n): 704
• Complete list of divisors:
  1 2 4 5 8 10 11 16 19 20 22 29 32 38 40 43 44 55 58 64 76 80 86 88 95 97 110 116 128 145 152 160 172 176 190 194 209 215 220 232 256 290 304 319 320 344 352 380 388 418 430 440 464 473 485 512 551 580 608 638 640 688 704 760 776 817 836 860 880 928 946 970 1024 1045 1067 1102 1160 1216 1247 1276 1280 1376 1408 1520 1552 1595 1634 1672 1720 1760 1843 1856 1892 1940 2090 2134 2204 2320 2365 2432 2494 2552 2560 2752 2755 2813 2816 3040 3104 3190 3268 3344 3440 3520 3686 3712 3784 3880 4085 4171 4180 4268 4408 4640 4730 4864 4988 5104 5120 5335 5504 5510 5626 5632 6061 6080 6208 6235 6380 6536 6688 6880 7040 7372 7424 7568 7760 8170 8342 8360 8536 8816 8987 9215 9280 9460 9728 9976 10208 10670 11008 11020 11252 11264 12122 12160 12416 12470 12760 13072 13376 13717 13760 14065 14080 14744 14848 15136 15520 16340 16684 16720 17072 17632 17974 18430 18560 18920 19456 19952 20273 20416 20855 21340 22016 22040 22504 23693 24244 24320 24832 24940 25520 26144 26752 27434 27520 28130 28160 29488 29696 30272 30305 30943 31040 32680 33368 33440 34144 35264 35948 36860 37120 37840 39904 40546 40832 41710 42680 44032 44080 44935 45008 45881 47386 48488 48640 49664 49880 51040 52288 53447 53504 54868 55040 56260 56320 58976 60544 60610 61886 62080 65360 66736 66880 68288 68585 70528 71896 73720 74240 75680 79249 79808 81092 81664 83420 85360 88160 89870 90016 91762 94772 96976 97280 99328 99760 101365 102080 104576 106894 107008 109736 110080 112520 117952 118465 120959 121088 121220 123772 124160 130720 133472 133760 136576 137170 141056 143792 147440 148480 151360 154715 158498 159616 162184 163328 166840 170720 176320 179740 180032 183524 189544 193952 199520 202730 204160 209152 213788 214016 219472 220160 225040 229405 235904 236930 241918 242176 242440 247544 248320 260623 261440 266944 267235 267520 273152 274340 282112 287584 294880 302720 309430 316996 319232 324368 326656 333680 341440 352640 359480 360064 367048 379088 387904 396245 399040 405460 408320 418304 427576 438944 450080 458810 471808 473860 483836 484352 484880 495088 496640 521246 522880 533888 534470 535040 546304 548680 564224 575168 587917 589760 604795 605440 618860 633992 638464 648736 667360 682880 705280 718960 720128 734096 758176 775808 792490 798080 810920 816640 836608 855152 871739 877888 900160 917620 943616 947720 967672 969760 990176 1042492 1045760 1067776 1068940 1070080 1092608 1097360 1150336 1175834 1179520 1209590 1210880 1237720 1267984 1276928 1297472 1303115 1330549 1334720 1365760 1410560 1437920 1440256 1468192 1516352 1551616 1584980 1596160 1621840 1633280 1710304 1743478 1755776 1800320 1835240 1887232 1895440 1935344 1939520 1980352 2084984 2091520 2135552 2137880 2194720 2298221 2300672 2351668 2359040 2419180 2421760 2475440 2535968 2594944 2606230 2661098 2669440 2731520 2821120 2875840 2880512 2936384 2939585 3032704 3103232 3169960 3192320 3243680 3420608 3486956 3511552 3600640 3670480 3790880 3870688 3879040 3960704 4169968 4183040 4271104 4275760 4358695 4389440 4596442 4601344 4703336 4718080 4838360 4950880 5071936 5189888 5212460 5322196 5338880 5463040 5751680 5872768 5879170 6065408 6206464 6339920 6384640 6487360 6652745 6841216 6973912 7023104 7201280 7340960 7581760 7741376 7758080 7921408 8339936 8551520 8717390 8778880 9192884 9202688 9406672 9436160 9676720 9901760 10143872 10379776 10424920 10644392 10677760 11491105 11503360 11745536 11758340 12130816 12679840 12974720 13305490 13682432 13947824 14046208 14402560 14681920 15163520 15482752 15516160 15842816 16679872 17103040 17434780 17557760 18385768 18813344 19353440 19803520 20287744 20759552 20849840 21288784 21355520 22982210 23006720 23491072 23516680 24261632 25280431 25359680 25949440 26610980 27364864 27895648 29363840 30327040 30965504 31032320 31685632 33359744 34206080 34869560 35115520 36771536 37626688 38706880 39607040 40575488 41699680 42577568 45964420 46013440 46982144 47033360 50560862 50719360 51898880 53221960 54729728 55791296 58727680 60654080 61931008 66719488 68412160 69739120 70231040 73543072 75253376 77413760 79214080 81150976 83399360 85155136 91928840 94066720 101121724 101438720 103797760 106443920 111582592 117455360 121308160 123862016 126402155 133438976 136824320 139478240 147086144 150506752 154827520 158428160 166798720 170310272 183857680 188133440 202243448 202877440 212887840 223165184 234910720 252804310 266877952 273648640 278956480 294172288 301013504 309655040 333597440 340620544 367715360 376266880 404486896 405754880 425775680 446330368 505608620 557912960 588344576 602027008 619310080 667194880 681241088 735430720 752533760 808973792 851551360 892660736 1011217240 1115825920 1176689152 1334389760 1362482176 1470861440 1505067520 1617947584 1703102720 2022434480 2231651840 2353378304 2941722880 3010135040 3235895168 3406205440 4044868960 4463303680 5883445760 6471790336 6812410880 8089737920 11766891520 12943580672 16179475840 25887161344 32358951680 64717903360 129435806720
• Sum of all divisors σ(n): 381311884800
• Sum of proper divisors (its aliquot sum) s(n): 251876078080
• 129435806720 is an abundant number, because the sum of its proper divisors (251876078080) is greater than itself. Its abundance is 122440271360

Bases of 129435806720

• Binary: 1111000100010111110011010110000000000₂
• Hexadecimal: 0x1E22F9AC00
• Base-36: 1NGMQJNK

Squares and roots of 129435806720

• 129435806720 squared (129435806720²) is 16753628061257197158400
• 129435806720 cubed (129435806720³) is 2168519363595654891603595624448000
• The square root of 129435806720 is 359771.8815027099
• The cube root of 129435806720 is 5058.4579593925

Scales and comparisons

• 129,435,806,720 seconds is equal to 4,115 years, 34 weeks, 1 day, 14 hours, 45 minutes, 20 seconds.
• To count from 1 to 129,435,806,720 would take you about eight thousand, two hundred thirty-one 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 129435806720 cubic inches would be around 421.5 feet tall.

Recreational maths with 129435806720

• 129435806720 backwards is 027608534921
• The number of decimal digits it has is: 12
• The sum of 129435806720's digits is 47
• More coming soon!