18121464900

Names of 18121464900

• Cardinal: 18121464900 can be written as Eighteen billion, one hundred twenty-one million, four hundred sixty-four thousand, nine hundred.

Scientific notation

• Scientific notation: 1.81214649 × 10¹⁰

Factors of 18121464900

• Number of distinct prime factors ω(n): 8
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 255

Divisors of 18121464900

• Number of divisors d(n): 864
• Complete list of divisors:
  1 2 3 4 5 6 7 9 10 11 12 14 15 18 20 21 22 25 28 29 30 33 35 36 42 44 45 50 55 58 60 63 66 70 71 75 77 84 87 90 99 100 105 110 116 126 127 132 140 142 145 150 154 165 174 175 180 198 203 210 213 220 225 231 252 254 261 275 284 290 300 308 315 319 330 348 350 355 381 385 396 406 420 426 435 450 462 495 497 508 522 525 550 580 609 630 635 638 639 660 693 700 710 725 762 770 781 812 825 852 870 889 900 924 957 990 994 1015 1044 1050 1065 1100 1143 1155 1218 1260 1270 1276 1278 1305 1386 1397 1420 1450 1491 1524 1540 1562 1575 1595 1650 1740 1775 1778 1827 1905 1914 1925 1980 1988 2030 2059 2100 2130 2175 2233 2286 2310 2343 2436 2475 2485 2540 2556 2610 2667 2772 2794 2871 2900 2982 3045 3124 3150 3175 3190 3195 3300 3465 3550 3556 3654 3683 3810 3828 3850 3905 4060 4118 4191 4260 4350 4445 4466 4473 4572 4620 4686 4785 4950 4970 5075 5220 5325 5334 5467 5588 5715 5742 5775 5964 6090 6177 6300 6350 6380 6390 6525 6699 6930 6985 7029 7100 7308 7366 7455 7620 7700 7810 7975 8001 8236 8382 8700 8890 8932 8946 9017 9135 9372 9525 9570 9779 9900 9940 10150 10295 10650 10668 10934 11049 11165 11430 11484 11550 11715 12180 12354 12425 12573 12700 12780 13050 13335 13398 13860 13970 14058 14355 14413 14732 14910 15225 15620 15950 15975 16002 16401 16764 17325 17780 17892 18034 18270 18415 18531 19050 19140 19525 19558 20097 20300 20590 20955 21300 21868 22098 22225 22330 22365 22649 22860 23100 23430 23925 24708 24850 25146 25781 26100 26670 26796 27051 27335 27940 28116 28575 28710 28826 29337 29820 30450 30885 31900 31950 32004 32802 33147 33495 34650 34925 35145 36068 36540 36830 37062 37275 38100 39050 39116 40005 40194 40513 41180 41910 43239 44196 44450 44660 44730 45085 45298 45675 46860 47850 48895 49203 49700 50292 51475 51562 53340 54102 54670 55245 55825 57150 57420 57652 58575 58674 60900 61770 62865 63119 63900 65604 66294 66675 66990 67947 69300 69850 70290 71775 72065 73660 74124 74550 77343 78100 80010 80388 81026 81153 82005 83820 86478 88011 88900 89460 90170 90596 91350 92075 92655 95700 97790 98406 99187 100485 102950 103124 104775 108204 109340 110490 111650 111825 113245 114300 117150 117348 121539 123540 125730 126238 128905 129717 132588 133350 133980 135255 135894 136675 139700 140580 143550 144130 146685 149100 154425 154686 158543 160020 162052 162306 164010 165735 167475 172956 175725 176022 180340 182700 184150 185310 189357 195580 196812 198374 200025 200970 202565 203841 205900 209550 216195 220980 223300 223650 225425 226490 232029 234300 243078 244475 246015 251460 252476 257810 259434 261493 266700 270510 271788 273350 276225 283591 287100 288260 293370 297561 308850 309372 314325 315595 317086 324612 328020 331470 334950 339735 351450 352044 360325 364617 368300 370620 378714 386715 396748 400050 401940 405130 405765 407682 410025 419100 432390 440055 447300 450850 452980 463275 464058 475629 486156 488950 492030 495935 502425 515620 518868 522986 541020 546700 552450 566225 567182 568071 586740 595122 607695 617700 628650 631190 634172 644525 648585 662940 669900 676275 679470 694309 702900 720650 729234 733425 757428 773430 784479 792715 800100 810260 811530 815364 820050 828675 850773 864780 880110 892683 901700 926550 928116 946785 951258 977900 984060 991870 1004850 1012825 1019205 1045972 1080975 1104900 1132450 1134364 1136142 1160145 1190244 1215390 1230075 1257300 1262380 1289050 1297170 1307465 1352550 1358940 1388618 1417955 1426887 1441300 1458468 1466850 1487805 1546860 1568958 1577975 1585430 1623060 1640100 1657350 1698675 1701546 1760220 1785366 1823085 1830451 1853100 1893570 1902516 1933575 1983740 2009700 2025650 2028825 2038410 2082927 2161950 2200275 2264900 2272284 2320290 2353437 2378145 2430780 2460150 2479675 2552319 2578100 2594340 2614930 2705100 2777236 2835910 2840355 2853774 2876423 2933700 2975610 3038475 3137916 3155950 3170860 3242925 3314700 3397350 3403092 3471545 3570732 3646170 3660902 3787140 3867150 3922395 3963575 4051300 4057650 4076820 4165854 4253865 4323900 4400550 4463415 4640580 4706874 4733925 4756290 4920300 4959350 5096025 5104638 5229860 5491353 5671820 5680710 5707548 5752846 5800725 5951220 6076950 6248781 6311900 6485850 6537325 6794700 6943090 7089775 7134435 7292340 7321804 7439025 7734300 7844790 7927150 8115300 8331708 8507730 8629269 8801100 8926830 9115425 9152255 9413748 9467850 9512580 9918700 10192050 10209276 10414635 10982706 11361420 11505692 11601450 11767185 11890725 12153900 12497562 12761595 12971700 13074650 13886180 14179550 14201775 14268870 14382115 14878050 15689580 15854300 16474059 17015460 17258538 17357725 17853660 18230850 18304510 18935700 19611975 20134961 20384100 20829270 21269325 21965412 22317075 23202900 23534370 23781450 24995124 25523190 25887807 26149300 27456765 28359100 28403550 28537740 28764230 29756100 31243905 32948118 34517076 34715450 35672175 36461700 36609020 39223950 40269922 41658540 42538650 43146345 44634150 45761275 47068740 47562900 51046380 51775614 52073175 54913530 56807100 57528460 58835925 60404883 62487810 63807975 65896236 69430900 71344350 71910575 78447900 80539844 82370295 85077300 86292690 89268300 91522550 100674805 103551228 104146350 109827060 117671850 120809766 124975620 127615950 129439035 137283825 142688700 143821150 156219525 164740590 172585380 181214649 183045100 201349610 208292700 215731725 235343700 241619532 255231900 258878070 274567650 287642300 302024415 312439050 329481180 362429298 402699220 411851475 431463450 503374025 517756140 549135300 604048830 624878100 647195175 724858596 823702950 862926900 906073245 1006748050 1208097660 1294390350 1510122075 1647405900 1812146490 2013496100 2588780700 3020244150 3624292980 4530366225 6040488300 9060732450 18121464900
• Sum of all divisors σ(n): 74875207680
• Sum of proper divisors (its aliquot sum) s(n): 56753742780
• 18121464900 is an abundant number, because the sum of its proper divisors (56753742780) is greater than itself. Its abundance is 38632277880

Bases of 18121464900

• Binary: 10000111000000111111001110001000100₂
• Hexadecimal: 0x4381F9C44
• Base-36: 8BP1VT0

Squares and roots of 18121464900

• 18121464900 squared (18121464900²) is 328387490121932010000
• 18121464900 cubed (18121464900³) is 5950862375843687639401449000000
• The square root of 18121464900 is 134615.9905063285
• The cube root of 18121464900 is 2626.6231485127

Scales and comparisons

• 18,121,464,900 seconds is equal to 576 years, 10 weeks, 5 days, 4 hours, 15 minutes.
• To count from 1 to 18,121,464,900 would take you about one thousand, one hundred fifty-two 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 18121464900 cubic inches would be around 218.9 feet tall.

Recreational maths with 18121464900

• 18121464900 backwards is 00946412181
• 18121464900 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 18121464900's digits is 36
• More coming soon!