18145649808

Names of 18145649808

• Cardinal: 18145649808 can be written as Eighteen billion, one hundred forty-five million, six hundred forty-nine thousand, eight hundred eight.

Scientific notation

• Scientific notation: 1.8145649808 × 10¹⁰

Factors of 18145649808

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 15
• Sum of prime factors: 95

Divisors of 18145649808

• Number of divisors d(n): 840
• Complete list of divisors:
  1 2 3 4 6 8 9 11 12 13 16 18 22 23 24 26 27 33 36 39 43 44 46 48 52 54 66 69 72 78 81 86 88 92 99 104 108 117 121 129 132 138 143 144 156 162 172 176 184 198 207 208 216 234 242 243 253 258 264 276 286 297 299 312 324 344 351 363 368 387 396 414 429 432 468 473 484 486 506 516 528 552 559 572 594 598 621 624 648 688 702 726 729 759 774 792 828 858 891 897 936 946 968 972 989 1012 1032 1053 1089 1104 1118 1144 1161 1188 1196 1242 1287 1296 1404 1419 1452 1458 1518 1548 1573 1584 1656 1677 1716 1782 1794 1863 1872 1892 1936 1944 1978 2024 2064 2106 2178 2236 2277 2288 2322 2376 2392 2484 2574 2673 2691 2783 2808 2838 2904 2916 2967 3036 3096 3146 3159 3267 3289 3312 3354 3432 3483 3564 3588 3726 3784 3861 3888 3956 4048 4212 4257 4356 4472 4554 4644 4719 4752 4784 4968 5031 5148 5203 5346 5382 5566 5589 5616 5676 5808 5832 5934 6072 6149 6192 6292 6318 6534 6578 6708 6831 6864 6966 7128 7176 7452 7568 7722 7912 8019 8073 8349 8424 8514 8712 8901 8944 9108 9288 9438 9477 9801 9867 9936 10062 10296 10406 10449 10692 10764 10879 11132 11178 11352 11583 11664 11868 12144 12298 12584 12636 12771 12857 13068 13156 13416 13662 13932 14157 14256 14352 14904 15093 15444 15609 15824 16038 16146 16698 16767 16848 17028 17424 17802 18216 18447 18576 18876 18954 19602 19734 20124 20493 20592 20812 20898 21384 21528 21758 22264 22356 22704 23166 23736 24219 24596 25047 25168 25272 25542 25714 26136 26312 26703 26832 27324 27864 28314 29403 29601 29808 30186 30888 31218 31347 32076 32292 32637 33396 33534 34056 34749 35604 36179 36432 36894 37752 37908 38313 38571 39204 39468 40248 40986 41624 41796 42471 42768 43056 43516 44528 44712 45279 46332 46827 47472 48438 49192 50094 50544 51084 51428 52272 52624 53406 54648 55341 55728 56628 58806 59202 60372 61479 61776 62436 62694 64152 64584 65274 66792 67068 67639 68112 69498 71208 72358 72657 73788 75141 75504 75816 76626 77142 78408 78936 80109 80496 81972 83248 83592 84942 87032 88209 88803 89424 90558 92664 93654 96876 97911 98384 100188 102168 102856 104247 106812 108537 109296 110682 113256 114939 115713 117612 118404 119669 120744 122958 124872 125388 127413 128304 129168 130548 133584 134136 135278 135837 138996 140481 141427 142416 144716 145314 147576 150282 151632 153252 154284 156816 157872 160218 163944 166023 167184 169884 174064 176418 177606 181116 184437 185328 187308 193752 195822 200376 202917 204336 205712 208494 213624 217074 217971 221364 225423 226512 229878 231426 235224 236808 239338 240327 241488 245916 249744 250776 254826 261096 266409 268272 270556 271674 277992 280962 282854 289432 290628 293733 295152 300564 306504 308568 320436 325611 327888 332046 339768 344817 347139 352836 355212 359007 362232 368874 374616 382239 387504 391644 400752 405834 407511 416988 421443 424281 427248 434148 435942 442728 450846 459756 462852 470448 473616 478676 480654 491832 498069 501552 509652 522192 532818 541112 543348 555984 561924 565708 578864 581256 587466 601128 608751 613008 617136 640872 651222 664092 676269 679536 689634 694278 705672 710424 718014 720981 724464 737748 749232 764478 783288 799227 811668 815022 833976 842886 848562 868296 871884 881199 885456 901692 919512 925704 957352 961308 976833 983664 996138 1019304 1041417 1065636 1077021 1082224 1086696 1123848 1131416 1146717 1162512 1174932 1202256 1217502 1264329 1272843 1281744 1302444 1328184 1352538 1379268 1388556 1411344 1420848 1436028 1441962 1475496 1494207 1528956 1555697 1566576 1598454 1623336 1630044 1667952 1685772 1697124 1736592 1743768 1762398 1803384 1826253 1839024 1851408 1914704 1922616 1953666 1992276 2028807 2038608 2082834 2131272 2154042 2173392 2247696 2262832 2293434 2349864 2397681 2435004 2528658 2545686 2604888 2643597 2656368 2705076 2758536 2777112 2872056 2883924 2930499 2950992 2988414 3057912 3111394 3124251 3196908 3231063 3246672 3260088 3371544 3394248 3487536 3524796 3606768 3652506 3792987 3818529 3845232 3907332 3984552 4057614 4165668 4262544 4308084 4482621 4586868 4667091 4699728 4795362 4870008 5057316 5091372 5209776 5287194 5410152 5478759 5517072 5554224 5744112 5767848 5860998 5976828 6115824 6222788 6248502 6393816 6462126 6520176 6743088 6788496 7049592 7305012 7585974 7637058 7814664 7930791 7969104 8115228 8331336 8616168 8791497 8965242 9173736 9334182 9372753 9590724 9693189 9740016 10114632 10182744 10574388 10820304 10957518 11455587 11535696 11721996 11953656 12445576 12497004 12787632 12924252 14001273 14099184 14610024 15171948 15274116 15629328 15861582 16230456 16436277 16662672 17232336 17582994 17930484 18347472 18668364 18745506 19181448 19386378 20229264 20365488 21148776 21915036 22911174 23443992 23907312 24891152 24994008 25848504 26374491 28002546 29079567 29220048 30343896 30548232 31723164 32460912 32872554 34366761 35165988 35860968 37336728 37491012 38362896 38772756 42003819 42297552 43830072 45822348 46887984 49308831 49988016 51697008 52748982 56005092 58159134 60687792 61096464 63446328 65745108 68733522 70331976 71721936 74673456 74982024 77545512 84007638 87238701 87660144 91644696 98617662 103100283 105497964 112010184 116318268 126011457 126892656 131490216 137467044 140663952 149964048 155091024 168015276 174477402 183289392 197235324 206200566 210995928 224020368 232636536 252022914 262980432 274934088 336030552 348954804 378034371 394470648 412401132 421991856 465273072 504045828 549868176 672061104 697909608 756068742 788941296 824802264 1008091656 1134103113 1395819216 1512137484 1649604528 2016183312 2268206226 3024274968 4536412452 6048549936 9072824904 18145649808
• Sum of all divisors σ(n): 66623194176
• Sum of proper divisors (its aliquot sum) s(n): 48477544368
• 18145649808 is an abundant number, because the sum of its proper divisors (48477544368) is greater than itself. Its abundance is 30331894560

Bases of 18145649808

• Binary: 10000111001100100001010010010010000₂
• Hexadecimal: 0x43990A490
• Base-36: 8C3G900

Squares and roots of 18145649808

• 18145649808 squared (18145649808²) is 329264606954570436864
• 18145649808 cubed (18145649808³) is 5974720251966396512403717722112
• The square root of 18145649808 is 134705.7898087533
• The cube root of 18145649808 is 2627.7911262025

Scales and comparisons

• 18,145,649,808 seconds is equal to 576 years, 50 weeks, 5 days, 2 hours, 16 minutes, 48 seconds.
• To count from 1 to 18,145,649,808 would take you about one thousand, one hundred fifty-three 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 18145649808 cubic inches would be around 219 feet tall.

Recreational maths with 18145649808

• 18145649808 backwards is 80894654181
• 18145649808 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 18145649808's digits is 54
• More coming soon!