18185989536

Names of 18185989536

• Cardinal: 18185989536 can be written as Eighteen billion, one hundred eighty-five million, nine hundred eighty-nine thousand, five hundred thirty-six.

Scientific notation

• Scientific notation: 1.8185989536 × 10¹⁰

Factors of 18185989536

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 236

Divisors of 18185989536

• Number of divisors d(n): 768
• Complete list of divisors:
  1 2 3 4 6 8 9 11 12 13 16 18 19 22 24 26 27 32 33 36 38 39 44 48 52 54 57 61 66 72 76 78 88 96 99 104 108 114 117 122 127 132 143 144 152 156 171 176 183 198 208 209 216 228 234 244 247 254 264 286 288 297 304 312 342 351 352 366 381 396 416 418 429 432 456 468 488 494 508 513 528 549 572 594 608 624 627 671 684 702 732 741 762 792 793 836 858 864 912 936 976 988 1016 1026 1056 1098 1143 1144 1159 1188 1248 1254 1287 1342 1368 1397 1404 1464 1482 1524 1584 1586 1647 1651 1672 1716 1824 1872 1881 1952 1976 2013 2032 2052 2196 2223 2286 2288 2318 2376 2379 2413 2508 2574 2684 2717 2736 2794 2808 2928 2964 3048 3168 3172 3294 3302 3344 3429 3432 3477 3744 3762 3861 3952 4026 4064 4104 4191 4392 4446 4572 4576 4636 4752 4758 4826 4953 5016 5148 5368 5434 5472 5588 5616 5643 5856 5928 6039 6096 6344 6588 6604 6669 6688 6858 6864 6954 7137 7239 7524 7722 7747 7904 8052 8151 8208 8382 8723 8784 8892 9144 9272 9504 9516 9652 9906 10032 10296 10431 10736 10868 11176 11232 11286 11856 12078 12192 12573 12688 12749 13176 13208 13338 13716 13728 13908 14274 14478 14859 15048 15067 15444 15494 16104 16302 16416 16764 17446 17568 17784 18117 18161 18288 18544 19032 19304 19812 20064 20592 20862 21411 21472 21717 21736 22352 22572 23241 23712 24156 24453 25146 25376 25498 26169 26352 26416 26543 26676 27432 27816 28548 28956 29718 30096 30134 30888 30988 31293 31369 32208 32604 33528 34892 35568 36234 36322 36576 37088 37719 38064 38247 38608 39624 41184 41724 42822 43434 43472 44577 44704 45144 45201 46482 48312 48906 50292 50996 52338 52704 52832 53086 53352 54483 54864 55632 57096 57912 59436 60192 60268 61776 61976 62586 62738 64416 65151 65208 67056 69723 69784 71136 72468 72644 73359 75438 76128 76494 77216 78507 79248 79629 83448 85217 85644 86868 86944 89154 90288 90402 92964 94107 96624 97812 100584 100711 101992 104676 106172 106704 108966 109728 111264 114192 114741 115824 118872 120536 123552 123952 125172 125476 130302 130416 134112 135603 139446 139568 144936 145288 146718 147193 150876 152988 157014 158496 159258 163449 165737 166896 170434 171288 173736 178308 180576 180804 185928 188214 193248 195624 201168 201422 203984 209169 209352 212344 213408 217932 228384 229482 231648 235521 237744 238887 241072 247904 250344 250952 255651 260604 260832 271206 278892 279136 282321 289872 290576 293436 294386 301752 302133 305976 314028 318516 326898 331474 333792 340868 342576 344223 345059 347472 356616 361608 371856 376428 391248 402336 402844 406809 407968 418338 418704 424688 435864 441579 458964 471042 475488 477774 482144 490347 497211 500688 501904 511302 521208 542412 557784 564642 579744 581152 586872 588772 603504 604266 611952 628056 637032 653796 662948 681736 685152 688446 690118 694944 713232 716661 723216 743712 752856 766953 782496 805688 813618 836676 837408 846963 849376 871728 883158 906399 917928 942084 955548 980694 994422 1001376 1003808 1022604 1035177 1042416 1084824 1107821 1115568 1129284 1173744 1177544 1207008 1208532 1223904 1256112 1274064 1307592 1324737 1325896 1363472 1376892 1380236 1426464 1433322 1446432 1491633 1505712 1533906 1611376 1619123 1627236 1673352 1693926 1743456 1766316 1812798 1835856 1884168 1911096 1913509 1961388 1988844 2045208 2070354 2084832 2169648 2215642 2231136 2258568 2300859 2347488 2355088 2417064 2512224 2548128 2615184 2649474 2651792 2719197 2726944 2753784 2760472 2866644 2983266 3011424 3067812 3105531 3222752 3238246 3254472 3323463 3346704 3387852 3532632 3625596 3671712 3768336 3822192 3827018 3922776 3974211 3977688 4090416 4140708 4339296 4431284 4474899 4517136 4601718 4710176 4834128 4857369 5230368 5298948 5303584 5438394 5507568 5520944 5733288 5740527 5966532 6135624 6211062 6476492 6508944 6646926 6693408 6775704 7065264 7251192 7536672 7644384 7654036 7845552 7948422 7955376 8180832 8281416 8862568 8949798 9034272 9203436 9316593 9668256 9714738 9970389 10597896 10876788 11015136 11041888 11466576 11481054 11933064 12271248 12422124 12952984 13017888 13293852 13551408 14130528 14502384 14572107 15308072 15691104 15896844 15910752 16562832 17221581 17725136 17899596 18406872 18633186 19429476 19940778 21048599 21195792 21753576 22933152 22962108 23866128 24542496 24844248 25905968 26587704 27102816 29004768 29144214 29911167 30616144 31793688 33125664 34443162 35450272 35799192 36813744 37266372 38858952 39881556 42097198 42391584 43507152 43716321 45924216 47732256 49688496 51664743 51811936 53175408 58288428 59822334 61232288 63145797 63587376 68886324 71598384 73627488 74532744 77717904 79763112 84194396 87014304 87432642 91848432 99376992 103329486 106350816 116576856 119644668 126291594 127174752 137772648 143196768 149065488 155435808 159526224 168388792 174865284 183696864 189437391 206658972 233153712 239289336 252583188 275545296 298130976 319052448 336777584 349730568 378874782 413317944 466307424 478578672 505166376 551090592 568312173 673555168 699461136 757749564 826635888 957157344 1010332752 1136624346 1398922272 1515499128 1653271776 2020665504 2273248692 3030998256 4546497384 6061996512 9092994768 18185989536
• Sum of all divisors σ(n): 67195699200
• Sum of proper divisors (its aliquot sum) s(n): 49009709664
• 18185989536 is an abundant number, because the sum of its proper divisors (49009709664) is greater than itself. Its abundance is 30823720128

Bases of 18185989536

• Binary: 10000111011111110000010110110100000₂
• Hexadecimal: 0x43BF82DA0
• Base-36: 8CRGVC0

Squares and roots of 18185989536

• 18185989536 squared (18185989536²) is 330730215403501495296
• 18185989536 cubed (18185989536³) is 6014656236567104211213409222656
• The square root of 18185989536 is 134855.4394008637
• The cube root of 18185989536 is 2629.7369722545

Scales and comparisons

• 18,185,989,536 seconds is equal to 578 years, 13 weeks, 2 days, 23 hours, 45 minutes, 36 seconds.
• To count from 1 to 18,185,989,536 would take you about one thousand, one hundred fifty-six 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 18185989536 cubic inches would be around 219.1 feet tall.

Recreational maths with 18185989536

• 18185989536 backwards is 63598958181
• The number of decimal digits it has is: 11
• The sum of 18185989536's digits is 63
• More coming soon!