18378992016

Names of 18378992016

• Cardinal: 18378992016 can be written as Eighteen billion, three hundred seventy-eight million, nine hundred ninety-two thousand and sixteen.

Scientific notation

• Scientific notation: 1.8378992016 × 10¹⁰

Factors of 18378992016

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 5604

Divisors of 18378992016

• Number of divisors d(n): 360
• Complete list of divisors:
  1 2 3 4 6 7 8 9 11 12 14 16 18 21 22 24 27 28 33 36 42 44 48 54 56 63 66 72 77 81 84 88 99 108 112 121 126 132 144 154 162 168 176 189 198 216 231 242 243 252 264 297 308 324 336 363 378 396 432 462 484 486 504 528 567 594 616 648 693 726 756 792 847 891 924 968 972 1008 1089 1134 1188 1232 1296 1386 1452 1512 1584 1694 1701 1782 1848 1936 1944 2079 2178 2268 2376 2541 2673 2772 2904 3024 3267 3388 3402 3564 3696 3888 4158 4356 4536 4752 5082 5346 5544 5581 5808 6237 6534 6776 6804 7128 7623 8316 8712 9072 9801 10164 10692 11088 11162 12474 13068 13552 13608 14256 15246 16632 16743 17424 18711 19602 20328 21384 22324 22869 24948 26136 27216 29403 30492 33264 33486 37422 39067 39204 40656 42768 44648 45738 49896 50229 52272 58806 60984 61391 66972 68607 74844 78134 78408 89296 91476 99792 100458 117201 117612 121968 122782 133944 137214 149688 150687 156268 156816 182952 184173 200916 205821 234402 235224 245564 267888 274428 299376 301374 312536 351603 365904 368346 401832 411642 429737 452061 468804 470448 491128 548856 552519 602748 625072 675301 703206 736692 803664 823284 859474 904122 937608 982256 1054809 1097712 1105038 1205496 1289211 1350602 1356183 1406412 1473384 1646568 1657557 1718948 1808244 1875216 2025903 2109618 2210076 2410992 2578422 2701204 2712366 2812824 2946768 3164427 3293136 3315114 3437896 3616488 3867633 4051806 4219236 4420152 4727107 4972671 5156844 5402408 5424732 5625648 6077709 6328854 6630228 6875792 7232976 7735266 8103612 8438472 8840304 9454214 9493281 9945342 10313688 10804816 10849464 11602899 12155418 12657708 13260456 14181321 14918013 15470532 16207224 16876944 18233127 18908428 18986562 19890684 20627376 21698928 23205798 24310836 25315416 26520912 28362642 29836026 30941064 32414448 34808697 36466254 37816856 37973124 39781368 42543963 46411596 48621672 50630832 54699381 56725284 59672052 61882128 69617394 72932508 75633712 75946248 79562736 85087926 92823192 97243344 104426091 109398762 113450568 119344104 127631889 139234788 145865016 151892496 164098143 170175852 185646384 208852182 218797524 226901136 238688208 255263778 278469576 291730032 328196286 340351704 382895667 417704364 437595048 510527556 556939152 656392572 680703408 765791334 835408728 875190096 1021055112 1148687001 1312785144 1531582668 1670817456 2042110224 2297374002 2625570288 3063165336 4594748004 6126330672 9189496008 18378992016
• Sum of all divisors σ(n): 67018474432
• Sum of proper divisors (its aliquot sum) s(n): 48639482416
• 18378992016 is an abundant number, because the sum of its proper divisors (48639482416) is greater than itself. Its abundance is 30260490400

Bases of 18378992016

• Binary: 10001000111011110010010100110010000₂
• Hexadecimal: 0x447792990
• Base-36: 8FYDL00

Squares and roots of 18378992016

• 18378992016 squared (18378992016²) is 337787347524191744256
• 18378992016 cubed (18378992016³) is 6208190963252937434534137860096
• The square root of 18378992016 is 135569.1410904413
• The cube root of 18378992016 is 2639.0071266387

Scales and comparisons

• 18,378,992,016 seconds is equal to 584 years, 20 weeks, 3 days, 19 hours, 33 minutes, 36 seconds.
• To count from 1 to 18,378,992,016 would take you about one thousand, one hundred sixty-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 18378992016 cubic inches would be around 219.9 feet tall.

Recreational maths with 18378992016

• 18378992016 backwards is 61029987381
• 18378992016 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 18378992016's digits is 54
• More coming soon!