129646891920

Names of 129646891920

• Cardinal: 129646891920 can be written as One hundred twenty-nine billion, six hundred forty-six million, eight hundred ninety-one thousand, nine hundred twenty.

Scientific notation

• Scientific notation: 1.2964689192 × 10¹¹

Factors of 129646891920

• Number of distinct prime factors ω(n): 8
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 12117

Divisors of 129646891920

• Number of divisors d(n): 640
• Complete list of divisors:
  1 2 3 4 5 6 7 8 10 12 13 14 15 16 17 20 21 24 26 28 29 30 34 35 39 40 42 48 51 52 56 58 60 65 68 70 78 80 84 85 87 91 102 104 105 112 116 119 120 130 136 140 145 156 168 170 174 182 195 203 204 208 210 221 232 238 240 255 260 272 273 280 290 312 336 340 348 357 364 377 390 406 408 420 435 442 455 464 476 493 510 520 546 560 580 595 609 624 663 680 696 714 728 754 780 812 816 840 870 884 910 952 986 1015 1020 1040 1092 1105 1131 1160 1190 1218 1326 1360 1365 1392 1428 1456 1479 1508 1547 1560 1624 1680 1740 1768 1785 1820 1885 1904 1972 2030 2040 2184 2210 2262 2320 2380 2436 2465 2639 2652 2730 2856 2958 3016 3045 3094 3120 3248 3315 3451 3480 3536 3570 3640 3770 3944 4060 4080 4368 4420 4524 4641 4760 4872 4930 5278 5304 5460 5655 5712 5916 6032 6090 6188 6409 6630 6902 6960 7140 7280 7395 7540 7735 7888 7917 8120 8840 9048 9282 9520 9744 9860 10353 10556 10608 10920 11310 11832 12041 12180 12376 12818 13195 13260 13804 14280 14790 15080 15470 15834 16240 17255 17680 18096 18564 19227 19720 20706 21112 21840 22620 23205 23664 24082 24360 24752 25636 26390 26520 27608 28560 29580 30160 30940 31668 32045 34510 36123 37128 38454 39440 39585 41412 42224 44863 45240 46410 48164 48720 51272 51765 52780 53040 55216 59160 60205 61880 63336 64090 69020 72246 74256 76908 79170 82824 84287 89726 90480 92820 96135 96328 102544 103530 105560 118320 120410 123760 126672 128180 134589 138040 144492 153816 156533 158340 165648 168574 179452 180615 185640 192270 192656 204697 207060 211120 224315 240820 252861 256360 269178 276080 288984 307632 313066 316680 337148 349189 358904 361230 371280 384540 409394 414120 421435 448630 469599 481640 505722 512720 538356 577968 614091 626132 633360 672945 674296 698378 717808 722460 769080 782665 818788 828240 842870 897260 939198 963280 1011444 1023485 1047567 1076712 1095731 1228182 1252264 1264305 1345890 1348592 1396756 1432879 1444920 1538160 1565330 1637576 1685740 1745945 1794520 1878396 2022888 2046970 2095134 2153424 2191462 2347995 2444323 2456364 2504528 2528610 2661061 2691780 2793512 2865758 2889840 3070455 3130660 3275152 3287193 3371480 3491890 3589040 3756792 4045776 4093940 4190268 4298637 4382924 4539457 4695990 4888646 4912728 5057220 5237835 5322122 5383560 5478655 5587024 5731516 5936213 6140910 6261320 6574386 6742960 6983780 7164395 7332969 7513584 7983183 8187880 8380536 8597274 8765848 9078914 9391980 9777292 9825456 10114440 10475670 10644244 10767120 10957310 11463032 11872426 12221615 12281820 12522640 13148772 13305305 13618371 13967560 14328790 14665938 15966366 16375760 16435965 16761072 17194548 17531696 17808639 18157828 18627427 18783960 19554584 20228880 20951340 21288488 21493185 21914620 22697285 22926064 23744852 24443230 24563640 26297544 26610610 27236742 27935120 28657580 29331876 29681065 31776199 31932732 32871930 34389096 35617278 36315656 36664845 37254854 37567920 39109168 39915915 41553491 41902680 42576976 42986370 43829240 45394570 47489704 48886460 49127280 52595088 53221220 54473484 55882281 57315160 58663752 59362130 63552398 63865464 65743860 68091855 68778192 71234556 72631312 73329690 74509708 77170769 79831830 83106982 83805360 85972740 87658480 89043195 90789140 93137135 94979408 95328597 97772920 106442440 108946968 111764562 114630320 117327504 118724260 124660473 127104796 127730928 131487720 136183710 142469112 146659380 149019416 154341538 158880995 159663660 166213964 171945480 178086390 181578280 186274270 190657194 195545840 207767455 212884880 217893936 223529124 231512307 237448520 249320946 254209592 262975440 272367420 279411405 284938224 293318760 298038832 308683076 317761990 319327320 332427928 343890960 356172780 363156560 372548540 381314388 385853845 415534910 447058248 463024614 474897040 476642985 498641892 508419184 540195383 544734840 558822810 586637520 617366152 623302365 635523980 638654640 664855856 712345560 745097080 762628776 771707690 831069820 894116496 926049228 953285970 997283784 1080390766 1089469680 1117645620 1157561535 1234732304 1246604730 1271047960 1424691120 1490194160 1525257552 1543415380 1620586149 1662139640 1852098456 1906571940 1994567568 2160781532 2235291240 2315123070 2493209460 2542095920 2700976915 3086830760 3241172298 3324279280 3704196912 3813143880 4321563064 4470582480 4630246140 4986418920 5401953830 6173661520 6482344596 7626287760 8102930745 8643126128 9260492280 9972837840 10803907660 12964689192 16205861490 18520984560 21607815320 25929378384 32411722980 43215630640 64823445960 129646891920
• Sum of all divisors σ(n): 541855319040
• Sum of proper divisors (its aliquot sum) s(n): 412208427120
• 129646891920 is an abundant number, because the sum of its proper divisors (412208427120) is greater than itself. Its abundance is 282561535200

Bases of 129646891920

• Binary: 1111000101111100011101001001110010000₂
• Hexadecimal: 0x1E2F8E9390
• Base-36: 1NK4EU1C

Squares and roots of 129646891920

• 129646891920 squared (129646891920²) is 16808316584516161286400
• 129646891920 cubed (129646891920³) is 2179146003589910307791188965888000
• The square root of 129646891920 is 360065.1217766029
• The cube root of 129646891920 is 5061.2062604525

Scales and comparisons

• 129,646,891,920 seconds is equal to 4,122 years, 19 weeks, 1 day, 17 hours, 32 minutes.
• To count from 1 to 129,646,891,920 would take you about eight thousand, two hundred forty-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 129646891920 cubic inches would be around 421.8 feet tall.

Recreational maths with 129646891920

• 129646891920 backwards is 029198646921
• The number of decimal digits it has is: 12
• The sum of 129646891920's digits is 57
• More coming soon!