18641894040

Names of 18641894040

• Cardinal: 18641894040 can be written as Eighteen billion, six hundred forty-one million, eight hundred ninety-four thousand and forty.

Scientific notation

• Scientific notation: 1.864189404 × 10¹⁰

Factors of 18641894040

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 6821

Divisors of 18641894040

• Number of divisors d(n): 480
• Complete list of divisors:
  1 2 3 4 5 6 7 8 9 10 11 12 14 15 18 20 21 22 24 27 28 30 33 35 36 40 42 44 45 54 55 56 60 63 66 70 72 77 81 84 88 90 99 105 108 110 120 121 126 132 135 140 154 162 165 168 180 189 198 210 216 220 231 242 252 264 270 280 297 308 315 324 330 360 363 378 385 396 405 420 440 462 484 495 504 540 567 594 605 616 630 648 660 693 726 756 770 792 810 840 847 891 924 945 968 990 1080 1089 1134 1155 1188 1210 1260 1320 1386 1452 1485 1512 1540 1620 1694 1782 1815 1848 1890 1980 2079 2178 2268 2310 2376 2420 2520 2541 2772 2835 2904 2970 3080 3240 3267 3388 3465 3564 3630 3780 3960 4158 4235 4356 4455 4536 4620 4840 5082 5445 5544 5670 5940 6237 6534 6776 6793 6930 7128 7260 7560 7623 8316 8470 8712 8910 9240 9801 10164 10395 10890 11340 11880 12474 12705 13068 13586 13860 14520 15246 16335 16632 16940 17820 19602 20328 20379 20790 21780 22680 22869 24948 25410 26136 27172 27720 30492 31185 32670 33880 33965 35640 38115 39204 40758 41580 43560 45738 47551 49005 49896 50820 54344 60984 61137 62370 65340 67930 68607 74723 76230 78408 81516 83160 91476 95102 98010 101640 101895 114345 122274 124740 130680 135860 137214 142653 149446 152460 163032 182952 183411 190204 196020 203790 224169 228690 237755 244548 249480 271720 274428 285306 298892 304920 305685 343035 366822 373615 380408 392040 407580 427959 448338 457380 475510 489096 523061 548856 550233 570612 597784 611370 672507 686070 713265 733644 747230 815160 821953 855918 896676 914760 917055 951020 1046122 1100466 1120845 1141224 1222740 1283877 1345014 1372140 1426530 1467288 1494460 1569183 1643906 1711836 1793352 1834110 1902040 2017521 2092244 2139795 2200932 2241690 2445480 2465859 2567754 2615305 2690028 2744280 2751165 2853060 2988920 3138366 3287812 3362535 3423672 3668220 3851631 4035042 4109765 4184488 4279590 4401864 4483380 4707549 4931718 5135508 5230610 5380056 5502330 5706120 5753671 6052563 6276732 6419385 6575624 6725070 7336440 7397577 7703262 7845915 8070084 8219530 8559180 8966760 9415098 9863436 10087605 10271016 10461220 11004660 11507342 12105126 12329295 12553464 12838770 13450140 14122647 14795154 15406524 15691830 16140168 16439060 17118360 17261013 18830196 19258155 19726872 20175210 20922440 22009320 22192731 23014684 23537745 24210252 24658590 25677540 26900280 28245294 28768355 29590308 30262815 30813048 31383660 32878120 34522026 36987885 37660392 38516310 40350420 42367941 44385462 46029368 47075490 48420504 49317180 51355080 51783039 56490588 57536710 59180616 60525630 62767320 66578193 69044052 70613235 73975770 77032620 80700840 84735882 86305065 88770924 94150980 98634360 103566078 110963655 112981176 115073420 121051260 133156386 138088104 141226470 147951540 154065240 155349117 169471764 172610130 177541848 188301960 207132156 211839705 221927310 230146840 242102520 258915195 266312772 282452940 295903080 310698234 332890965 338943528 345220260 414264312 423679410 443854620 466047351 517830390 532625544 564905880 621396468 665781930 690440520 776745585 847358820 887709240 932094702 1035660780 1242792936 1331563860 1553491170 1694717640 1864189404 2071321560 2330236755 2663127720 3106982340 3728378808 4660473510 6213964680 9320947020 18641894040
• Sum of all divisors σ(n): 78721806240
• Sum of proper divisors (its aliquot sum) s(n): 60079912200
• 18641894040 is an abundant number, because the sum of its proper divisors (60079912200) is greater than itself. Its abundance is 41438018160

Bases of 18641894040

• Binary: 10001010111001001001011101010011000₂
• Hexadecimal: 0x45724BA98
• Base-36: 8KAWHI0

Squares and roots of 18641894040

• 18641894040 squared (18641894040²) is 347520213398587521600
• 18641894040 cubed (18641894040³) is 6478434994934656863333411264000
• The square root of 18641894040 is 136535.3215838305
• The cube root of 18641894040 is 2651.5308131707

Scales and comparisons

• 18,641,894,040 seconds is equal to 592 years, 39 weeks, 1 day, 15 hours, 54 minutes.
• To count from 1 to 18,641,894,040 would take you about one thousand, one hundred eighty-five 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 18641894040 cubic inches would be around 221 feet tall.

Recreational maths with 18641894040

• 18641894040 backwards is 04049814681
• 18641894040 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 18641894040's digits is 45
• More coming soon!