129011720640

Names of 129011720640

• Cardinal: 129011720640 can be written as One hundred twenty-nine billion, eleven million, seven hundred twenty thousand, six hundred forty.

Scientific notation

• Scientific notation: 1.2901172064 × 10¹¹

Factors of 129011720640

• Number of distinct prime factors ω(n): 8
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 311

Divisors of 129011720640

• Number of divisors d(n): 896
• Complete list of divisors:
  1 2 3 4 5 6 8 10 11 12 15 16 19 20 22 24 30 32 33 38 40 44 48 55 57 60 61 64 66 76 80 83 88 95 96 110 114 120 122 127 132 152 160 165 166 176 183 190 192 209 220 228 240 244 249 254 264 285 304 305 320 330 332 352 366 380 381 415 418 440 456 480 488 498 508 528 570 608 610 627 635 660 664 671 704 732 760 762 830 836 880 912 913 915 960 976 996 1016 1045 1056 1140 1159 1216 1220 1245 1254 1270 1320 1328 1342 1397 1464 1520 1524 1577 1660 1672 1760 1824 1826 1830 1905 1952 1992 2013 2032 2090 2112 2280 2318 2413 2440 2490 2508 2540 2640 2656 2684 2739 2794 2928 3040 3048 3135 3154 3320 3344 3355 3477 3520 3648 3652 3660 3810 3904 3984 4026 4064 4180 4191 4560 4565 4636 4731 4826 4880 4980 5016 5063 5080 5280 5312 5368 5478 5588 5795 5856 6080 6096 6270 6308 6640 6688 6710 6954 6985 7239 7304 7320 7620 7747 7885 7968 8052 8128 8360 8382 9120 9130 9272 9462 9652 9760 9960 10032 10065 10126 10160 10541 10560 10736 10956 11176 11590 11712 12065 12192 12540 12616 12749 13280 13376 13420 13695 13908 13970 14478 14608 14640 15189 15240 15494 15770 15936 16104 16720 16764 17347 17385 18240 18260 18544 18924 19304 19520 19920 20064 20130 20252 20320 20955 21082 21472 21912 22352 23180 23241 23655 24130 24384 25080 25232 25315 25498 26543 26560 26840 27390 27816 27940 28956 29216 29280 30378 30480 30988 31540 31623 32208 33440 33528 34694 34770 36195 36520 37088 37848 38247 38608 38735 39840 40128 40260 40504 40640 41910 42164 42944 43824 44704 46360 46482 47310 48260 50160 50464 50630 50996 52041 52705 53086 53680 54780 55632 55693 55880 57912 58432 58560 60756 60960 61976 63080 63246 63745 64416 66880 67056 69388 69540 72390 73040 74176 75696 75945 76494 77216 77470 79629 79680 80520 81008 83820 84328 85217 86735 87648 89408 92720 92964 94620 96197 96520 100320 100928 101260 101992 104082 105410 106172 107360 109560 111264 111386 111760 115824 115951 116205 121512 121920 123952 126160 126492 127490 128832 132715 134112 138776 139080 144780 146080 147193 151392 151890 152988 154432 154940 158115 159258 161040 162016 167079 167640 168656 170434 173470 175296 185440 185928 189240 191235 192394 193040 200279 200640 202520 203984 208164 210820 212344 214720 219120 222528 222772 223520 231648 231902 232410 243024 247904 252320 252984 254980 255651 260205 265430 268224 277552 278160 278465 288591 289560 292160 294386 302784 303780 305976 309880 316230 318516 322080 324032 334158 335280 337312 340868 346940 347853 370880 371856 378480 382470 384788 386080 398145 400558 405040 407968 416328 421640 424688 426085 438240 441579 445544 447040 463296 463804 464820 480985 486048 495808 504640 505968 509960 511302 520410 530860 555104 556320 556930 577182 579120 579755 588772 600837 607560 611952 619760 632460 637032 643001 644160 668316 670560 674624 681736 693880 695706 735965 743712 756960 764940 769576 772160 796290 801116 810080 815936 832656 835395 843280 849376 852170 876480 883158 891088 927608 929640 961970 972096 1001395 1011936 1019920 1022604 1040820 1058167 1061720 1110208 1112640 1113860 1154364 1158240 1159510 1177544 1201674 1215120 1223904 1239520 1264920 1274064 1278255 1286002 1336632 1341120 1363472 1387760 1391412 1442955 1471930 1487424 1513920 1529880 1539152 1592580 1602232 1619123 1620160 1665312 1670790 1686560 1698752 1704340 1739265 1766316 1782176 1855216 1859280 1923940 1929003 2002790 2023872 2039840 2045208 2081640 2116334 2123440 2203069 2207895 2227720 2308728 2316480 2319020 2355088 2403348 2430240 2447808 2479040 2529840 2548128 2556510 2572004 2673264 2726944 2775520 2782824 2885910 2943860 3004185 3059760 3078304 3174501 3185160 3204464 3215005 3238246 3330624 3341580 3373120 3408680 3478530 3532632 3564352 3710432 3718560 3847880 3858006 4005580 4079680 4090416 4163280 4232668 4246880 4406138 4415790 4455440 4617456 4638040 4710176 4806696 4857369 4860480 5059680 5096256 5113020 5144008 5290835 5346528 5453888 5551040 5565648 5771820 5887720 6008370 6119520 6156608 6349002 6370320 6408928 6430010 6476492 6609207 6683160 6817360 6957060 7065264 7073011 7420864 7437120 7695760 7716012 8011160 8095615 8180832 8326560 8465336 8493760 8812276 8831580 8910880 9234912 9276080 9420352 9613392 9645015 9714738 10119360 10226040 10288016 10581670 10693056 11015345 11131296 11543640 11775440 12016740 12217019 12239040 12698004 12740640 12817856 12860020 12952984 13218414 13366320 13634720 13914120 14130528 14146022 15391520 15432024 15872505 16022320 16191230 16361664 16653120 16930672 17624552 17663160 17821760 18469824 18552160 19226784 19290030 19429476 20452080 20576032 21163340 21219033 22030690 22262592 23087280 23550880 24033480 24286845 24434038 25396008 25481280 25720040 25905968 26436828 26732640 27269440 27828240 28261056 28292044 30783040 30864048 31745010 32044640 32382460 33046035 33861344 35249104 35326320 35365055 36651057 37104320 38453568 38580060 38858952 40904160 41152064 42326680 42438066 44061380 46174560 47101760 48066960 48573690 48868076 50792016 51440080 51811936 52873656 53465280 55656480 56584088 61085095 61728096 63490020 64089280 64764920 66092070 67722688 70498208 70652640 70730110 73302114 77160120 77717904 81808320 84653360 84876132 88122760 92349120 96133920 97147380 97736152 101584032 102880160 103623872 105747312 106095165 111312960 113168176 122170190 123456192 126980040 129529840 132184140 134387209 140996416 141305280 141460220 146604228 154320240 155435808 169306720 169752264 176245520 183255285 192267840 194294760 195472304 203168064 205760320 211494624 212190330 226336352 244340380 253960080 259059680 264368280 268774418 282920440 293208456 308640480 310871616 338613440 339504528 352491040 366510570 388589520 390944608 403161627 422989248 424380660 452672704 488680760 507920160 518119360 528736560 537548836 565840880 586416912 617280960 671936045 679009056 704982080 733021140 777179040 781889216 806323254 848761320 977361520 1015840320 1057473120 1075097672 1131681760 1172833824 1343872090 1358018112 1466042280 1554358080 1612646508 1697522640 1954723040 2015808135 2114946240 2150195344 2263363520 2345667648 2687744180 2932084560 3225293016 3395045280 3909446080 4031616270 4300390688 5375488360 5864169120 6450586032 6790090560 8063232540 8600781376 10750976720 11728338240 12901172064 16126465080 21501953440 25802344128 32252930160 43003906880 64505860320 129011720640
• Sum of all divisors σ(n): 487648788480
• Sum of proper divisors (its aliquot sum) s(n): 358637067840
• 129011720640 is an abundant number, because the sum of its proper divisors (358637067840) is greater than itself. Its abundance is 229625347200

Bases of 129011720640

• Binary: 1111000001001101100101010000111000000₂
• Hexadecimal: 0x1E09B2A1C0
• Base-36: 1N9M8WQO

Squares and roots of 129011720640

• 129011720640 squared (129011720640²) is 16644024062493402009600
• 129011720640 cubed (129011720640³) is 2147274182675836681905729798144000
• The square root of 129011720640 is 359182.0160308697
• The cube root of 129011720640 is 5052.9273703497

Scales and comparisons

• 129,011,720,640 seconds is equal to 4,102 years, 9 weeks, 5 hours, 4 minutes.
• To count from 1 to 129,011,720,640 would take you about eight thousand, two hundred four 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 129011720640 cubic inches would be around 421.1 feet tall.

Recreational maths with 129011720640

• 129011720640 backwards is 046027110921
• 129011720640 is a Harshad number.
• The number of decimal digits it has is: 12
• The sum of 129011720640's digits is 33
• More coming soon!