18686489472

Names of 18686489472

• Cardinal: 18686489472 can be written as Eighteen billion, six hundred eighty-six million, four hundred eighty-nine thousand, four hundred seventy-two.

Scientific notation

• Scientific notation: 1.8686489472 × 10¹⁰

Factors of 18686489472

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 14
• Sum of prime factors: 461

Divisors of 18686489472

• Number of divisors d(n): 576
• Complete list of divisors:
  1 2 3 4 6 7 8 9 12 14 16 18 21 23 24 28 32 36 37 42 46 48 49 56 63 64 69 72 74 84 92 96 98 111 112 126 128 138 144 147 148 161 168 184 192 196 207 222 224 252 259 276 288 294 296 322 333 336 368 384 389 392 414 441 444 448 483 504 518 552 576 588 592 644 666 672 736 777 778 784 828 851 882 888 896 966 1008 1036 1104 1127 1152 1167 1176 1184 1288 1332 1344 1449 1472 1554 1556 1568 1656 1702 1764 1776 1813 1932 2016 2072 2208 2254 2331 2334 2352 2368 2553 2576 2664 2688 2723 2898 2944 3108 3112 3136 3312 3381 3404 3501 3528 3552 3626 3864 4032 4144 4416 4508 4662 4668 4704 4736 5106 5152 5328 5439 5446 5796 5957 6216 6224 6272 6624 6762 6808 7002 7056 7104 7252 7659 7728 8064 8169 8288 8832 8947 9016 9324 9336 9408 10143 10212 10304 10656 10878 10892 11592 11914 12432 12448 13248 13524 13616 14004 14112 14208 14393 14504 15318 15456 16317 16338 16576 17871 17894 18032 18648 18672 18816 19061 20286 20424 20608 21312 21756 21784 23184 23828 24507 24864 24896 26496 26841 27048 27232 28008 28224 28786 29008 30636 30912 32634 32676 33152 35742 35788 36064 37296 37344 38122 40572 40848 41699 42624 43179 43512 43568 46368 47656 49014 49728 49792 53613 53682 54096 54464 56016 56448 57183 57572 58016 61272 61824 62629 65268 65352 71484 71576 72128 74592 74688 76244 80523 81144 81696 83398 86358 87024 87136 92736 95312 98028 99456 100751 107226 107364 108192 108928 112032 114366 115144 116032 122544 125097 125258 129537 130536 130704 142968 143152 144256 149184 149376 152488 161046 162288 163392 166796 171549 172716 174048 174272 185472 187887 190624 196056 201502 214452 214728 216384 224064 228732 230288 232064 245088 250194 250516 259074 261072 261408 285936 286304 298368 302253 304976 322092 324576 326784 331039 333592 343098 345432 348096 348544 375291 375774 381248 392112 403004 428904 429456 432768 438403 448128 457464 460576 490176 500388 501032 518148 522144 522816 563661 571872 572608 604506 609952 644184 649152 662078 667184 686196 690864 696192 705257 750582 751548 762496 784224 806008 857808 858912 876806 906759 914928 921152 980352 993117 1000776 1002064 1036296 1044288 1045632 1127322 1143744 1145216 1209012 1219904 1288368 1298304 1315209 1324156 1334368 1372392 1381728 1410514 1501164 1503096 1568448 1612016 1715616 1717824 1753612 1813518 1829856 1842304 1986234 2001552 2004128 2072592 2088576 2115771 2254644 2287488 2317273 2418024 2439808 2576736 2630418 2648312 2668736 2744784 2763456 2821028 2979351 3002328 3006192 3136896 3224032 3431232 3435648 3507224 3627036 3659712 3945627 3972468 4003104 4008256 4145184 4231542 4509288 4634546 4836048 5153472 5260836 5296624 5337472 5489568 5526912 5642056 5958702 6004656 6012384 6347313 6448064 6862464 6951819 7014448 7254072 7319424 7891254 7944936 8006208 8016512 8290368 8463084 9018576 9269092 9672096 10306944 10521672 10593248 10979136 11284112 11917404 12009312 12024768 12694626 12896128 13903638 14028896 14508144 15782508 15889872 16012416 16220911 16580736 16926168 18037152 18538184 19344192 20855457 21043344 21186496 21958272 22568224 23834808 24018624 24049536 25389252 27807276 28057792 29016288 31565016 31779744 32441822 33852336 36074304 37076368 38688384 41710914 42086688 42372992 45136448 47669616 48037248 48662733 50778504 55614552 56115584 58032576 63130032 63559488 64883644 67704672 72148608 74152736 83421828 84173376 90272896 95339232 97325466 101557008 111229104 116065152 126260064 127118976 129767288 135409344 145988199 148305472 166843656 168346752 190678464 194650932 203114016 222458208 252520128 259534576 270818688 291976398 296610944 333687312 381356928 389301864 406228032 444916416 505040256 519069152 583952796 667374624 778603728 812456064 889832832 1038138304 1167905592 1334749248 1557207456 2076276608 2335811184 2669498496 3114414912 4671622368 6228829824 9343244736 18686489472
• Sum of all divisors σ(n): 67207514400
• Sum of proper divisors (its aliquot sum) s(n): 48521024928
• 18686489472 is an abundant number, because the sum of its proper divisors (48521024928) is greater than itself. Its abundance is 29834535456

Bases of 18686489472

• Binary: 10001011001110011010011001110000000₂
• Hexadecimal: 0x459CD3380
• Base-36: 8L1GBK0

Squares and roots of 18686489472

• 18686489472 squared (18686489472²) is 349184888787166838784
• 18686489472 cubed (18686489472³) is 6525039748102883981644737282048
• The square root of 18686489472 is 136698.5350031229
• The cube root of 18686489472 is 2653.6434739839

Scales and comparisons

• 18,686,489,472 seconds is equal to 594 years, 8 weeks, 6 days, 19 hours, 31 minutes, 12 seconds.
• To count from 1 to 18,686,489,472 would take you about one thousand, one hundred eighty-eight 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 18686489472 cubic inches would be around 221.1 feet tall.

Recreational maths with 18686489472

• 18686489472 backwards is 27498468681
• 18686489472 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 18686489472's digits is 63
• More coming soon!