18318121920

Names of 18318121920

• Cardinal: 18318121920 can be written as Eighteen billion, three hundred eighteen million, one hundred twenty-one thousand, nine hundred twenty.

Scientific notation

• Scientific notation: 1.831812192 × 10¹⁰

Factors of 18318121920

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 14
• Sum of prime factors: 875

Divisors of 18318121920

• Number of divisors d(n): 672
• Complete list of divisors:
  1 2 3 4 5 6 7 8 9 10 12 14 15 16 18 19 20 21 24 27 28 30 32 35 36 38 40 42 45 48 54 56 57 60 63 64 70 72 76 80 84 90 95 96 105 108 112 114 120 126 133 135 140 144 152 160 168 171 180 189 190 192 210 216 224 228 240 252 266 270 280 285 288 304 315 320 336 342 360 361 378 380 399 420 432 448 456 480 504 513 532 540 560 570 576 608 630 665 672 684 720 722 756 760 798 839 840 855 864 912 945 960 1008 1026 1064 1080 1083 1120 1140 1197 1216 1260 1330 1344 1368 1440 1444 1512 1520 1596 1678 1680 1710 1728 1805 1824 1890 1995 2016 2052 2128 2160 2166 2240 2280 2394 2517 2520 2527 2565 2660 2736 2880 2888 3024 3040 3192 3249 3356 3360 3420 3591 3610 3648 3780 3990 4032 4104 4195 4256 4320 4332 4560 4788 5034 5040 5054 5130 5320 5415 5472 5776 5873 5985 6048 6080 6384 6498 6712 6720 6840 7182 7220 7551 7560 7581 7980 8208 8390 8512 8640 8664 9120 9576 9747 10068 10080 10108 10260 10640 10830 10944 11552 11746 11970 12096 12585 12635 12768 12996 13424 13680 14364 14440 15102 15120 15162 15941 15960 16245 16416 16780 17328 17619 17955 18240 19152 19494 20136 20160 20216 20520 21280 21660 22653 22743 23104 23492 23940 25170 25270 25536 25992 26848 27360 28728 28880 29365 30204 30240 30324 31882 31920 32490 32832 33560 34656 35238 35910 37755 37905 38304 38988 40272 40432 41040 42560 43320 45306 45486 46984 47823 47880 48735 50340 50540 51984 52857 53696 54720 57456 57760 58730 60408 60480 60648 63764 63840 64980 67120 68229 69312 70476 71820 75510 75810 76608 77976 79705 80544 80864 82080 86640 88095 90612 90972 93968 95646 95760 97470 100680 101080 103968 105714 111587 113265 113715 114912 115520 117460 120816 121296 127528 127680 129960 134240 136458 140952 143469 143640 151020 151620 155952 158571 159410 161088 161728 164160 173280 176190 181224 181944 187936 191292 191520 194940 201360 202160 207936 211428 223174 226530 227430 229824 234920 239115 241632 242592 255056 259920 264285 268480 272916 281904 286938 287280 302040 302879 303240 311904 317142 318820 334761 341145 346560 352380 362448 363888 375872 382584 383040 389880 402720 404320 422856 430407 446348 453060 454860 469840 478230 483264 485184 510112 519840 528570 545832 557935 563808 573876 574560 604080 605758 606480 623808 634284 637640 669522 682290 704760 717345 724896 727776 765168 779760 792855 805440 808640 845712 860814 892696 906120 908637 909720 939680 956460 1004283 1020224 1039680 1057140 1091664 1115870 1127616 1147752 1149120 1208160 1211516 1212960 1268568 1275280 1339044 1364580 1409520 1434690 1449792 1455552 1514395 1530336 1559520 1585710 1673805 1691424 1721628 1785392 1812240 1817274 1819440 1879360 1912920 2008566 2114280 2120153 2152035 2183328 2231740 2295504 2416320 2423032 2425920 2537136 2550560 2678088 2725911 2729160 2819040 2869380 3012849 3028790 3060672 3119040 3171420 3347610 3382848 3443256 3570784 3624480 3634548 3638880 3825840 4017132 4228560 4240306 4304070 4366656 4463480 4543185 4591008 4846064 5021415 5074272 5101120 5356176 5451822 5458320 5638080 5738760 6025698 6057580 6342840 6360459 6695220 6886512 7141568 7248960 7269096 7277760 7651680 8034264 8177733 8457120 8480612 8608140 8926960 9086370 9182016 9692128 10042830 10148544 10600765 10712352 10903644 10916640 11477520 12051396 12115160 12685680 12720918 13390440 13629555 13773024 14538192 15064245 15303360 16068528 16355466 16914240 16961224 17216280 17853920 18172740 19081377 19384256 20085660 21201530 21424704 21807288 21833280 22955040 24102792 24230320 25371360 25441836 26780880 27259110 27546048 29076384 30128490 31802295 32137056 32710932 33922448 34432560 35707840 36345480 38162754 40171320 40888665 42403060 43614576 45910080 48205584 48460640 50742720 50883672 53561760 54518220 57244131 58152768 60256980 63604590 64274112 65421864 67844896 68865120 72690960 76325508 80342640 81777330 84806120 87229152 95406885 96411168 96921280 101767344 107123520 109036440 114488262 120513960 127209180 130843728 135689792 137730240 145381920 152651016 160685280 163554660 169612240 174458304 190813770 192822336 203534688 218072880 228976524 241027920 254418360 261687456 286220655 290763840 305302032 321370560 327109320 339224480 381627540 407069376 436145760 457953048 482055840 508836720 523374912 572441310 610604064 654218640 678448960 763255080 872291520 915906096 964111680 1017673440 1144882620 1221208128 1308437280 1526510160 1831812192 2035346880 2289765240 2616874560 3053020320 3663624384 4579530480 6106040640 9159060960 18318121920
• Sum of all divisors σ(n): 78038553600
• Sum of proper divisors (its aliquot sum) s(n): 59720431680
• 18318121920 is an abundant number, because the sum of its proper divisors (59720431680) is greater than itself. Its abundance is 41402309760

Bases of 18318121920

• Binary: 10001000011110110000101101111000000₂
• Hexadecimal: 0x443D85BC0
• Base-36: 8EY4XC0

Squares and roots of 18318121920

• 18318121920 squared (18318121920²) is 335553590675984486400
• 18318121920 cubed (18318121920³) is 6146711584696459037903781888000
• The square root of 18318121920 is 135344.4565543783
• The cube root of 18318121920 is 2636.0904943669

Scales and comparisons

• 18,318,121,920 seconds is equal to 582 years, 23 weeks, 6 days, 7 hours, 12 minutes.
• To count from 1 to 18,318,121,920 would take you about one thousand, one hundred sixty-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 18318121920 cubic inches would be around 219.7 feet tall.

Recreational maths with 18318121920

• 18318121920 backwards is 02912181381
• 18318121920 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 18318121920's digits is 36
• More coming soon!