18118072440

Names of 18118072440

• Cardinal: 18118072440 can be written as Eighteen billion, one hundred eighteen million, seventy-two thousand, four hundred forty.

Scientific notation

• Scientific notation: 1.811807244 × 10¹⁰

Factors of 18118072440

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 3018

Divisors of 18118072440

• Number of divisors d(n): 512
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 12 13 15 18 19 20 23 24 26 27 30 36 38 39 40 45 46 52 54 57 60 65 69 72 76 78 90 92 95 104 108 114 115 117 120 130 135 138 152 156 171 180 184 190 195 207 216 228 230 234 247 260 270 276 285 299 312 342 345 351 360 380 390 414 437 456 460 468 494 513 520 540 552 570 585 598 621 684 690 702 741 760 780 828 855 874 897 920 936 988 1026 1035 1080 1140 1170 1196 1235 1242 1311 1368 1380 1404 1482 1495 1560 1656 1710 1748 1755 1794 1976 2052 2070 2185 2223 2280 2340 2392 2470 2484 2565 2622 2691 2760 2808 2953 2964 2990 3105 3420 3496 3510 3588 3705 3933 4104 4140 4370 4446 4485 4680 4940 4968 5130 5244 5382 5681 5906 5928 5980 6210 6555 6669 6840 7020 7176 7410 7866 8073 8280 8740 8859 8892 8970 9880 10260 10488 10764 11115 11362 11799 11812 11960 12420 13110 13338 13455 14040 14765 14820 15732 16146 17043 17480 17718 17784 17940 19665 20520 21528 22230 22724 23598 23624 24840 26220 26577 26676 26910 28405 29530 29640 31464 32292 33345 34086 35436 35880 38389 39330 40365 44295 44460 45448 47196 51129 52440 53154 53352 53820 56107 56810 58995 59060 64584 66690 67919 68172 70872 76778 78660 79731 80730 85215 88590 88920 94392 102258 106308 107640 112214 113620 115167 117990 118120 132885 133380 135838 136344 153387 153556 157320 159462 161460 168321 170430 177180 191945 203757 204516 212616 224428 227240 230334 235980 255645 265770 266760 271676 280535 306774 307112 318924 322920 336642 339595 340860 345501 354360 383890 398655 407514 409032 448856 460668 471960 504963 511290 531540 543352 561070 575835 611271 613548 637848 673284 679190 681720 691002 729391 766935 767780 797310 815028 841605 882947 921336 1009926 1018785 1022580 1036503 1063080 1122140 1151670 1222542 1227096 1290461 1346568 1358380 1382004 1458782 1514889 1533870 1535560 1594620 1630056 1683210 1727505 1765894 1833813 2019852 2037570 2045160 2073006 2188173 2244280 2303340 2445084 2524815 2580922 2648841 2716760 2764008 2917564 3029778 3056355 3067740 3189240 3366420 3455010 3531788 3646955 3667626 3871383 4039704 4075140 4146012 4376346 4414735 4606680 4890168 5049630 5161844 5182515 5297682 5835128 6059556 6112710 6135480 6452305 6564519 6732840 6910020 7063576 7293910 7335252 7574445 7742766 7946523 8150280 8292024 8752692 8829470 9169065 10099260 10323688 10365030 10595364 10940865 11614149 12119112 12225420 12904610 13129038 13244205 13820040 14587820 14670504 15148890 15485532 15893046 16775993 17505384 17658940 18338130 19356915 19693557 20198520 20730060 21190728 21881730 23228298 23839569 24450840 25809220 26258076 26488410 29175640 30297780 30971064 31786092 32822595 33551986 34842447 35317880 36676260 38713830 39387114 39732615 41460120 43763460 46456596 47679138 50327979 51618440 52516152 52976820 58070745 60595560 63572184 65645190 67103972 69684894 73352520 77427660 78774228 79465230 83879965 87526920 92913192 95358276 98467785 100655958 105953640 116141490 119197845 131290380 134207944 139369788 150983937 154855320 157548456 158930460 167759930 174212235 190716552 196935570 201311916 232282980 238395690 251639895 262580760 278739576 301967874 317860920 335519860 348424470 393871140 402623832 452951811 464565960 476791380 503279790 603935748 671039720 696848940 754919685 787742280 905903622 953582760 1006559580 1207871496 1393697880 1509839370 1811807244 2013119160 2264759055 3019678740 3623614488 4529518110 6039357480 9059036220 18118072440
• Sum of all divisors σ(n): 71463168000
• Sum of proper divisors (its aliquot sum) s(n): 53345095560
• 18118072440 is an abundant number, because the sum of its proper divisors (53345095560) is greater than itself. Its abundance is 35227023120

Bases of 18118072440

• Binary: 10000110111111010111101100001111000₂
• Hexadecimal: 0x437EBD878
• Base-36: 8BN1660

Squares and roots of 18118072440

• 18118072440 squared (18118072440²) is 328264548941087553600
• 18118072440 cubed (18118072440³) is 5947520877198549588507182784000
• The square root of 18118072440 is 134603.3894075479
• The cube root of 18118072440 is 2626.4592311157

Scales and comparisons

• 18,118,072,440 seconds is equal to 576 years, 5 weeks, 21 hours, 54 minutes.
• To count from 1 to 18,118,072,440 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 18118072440 cubic inches would be around 218.9 feet tall.

Recreational maths with 18118072440

• 18118072440 backwards is 04427081181
• 18118072440 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 18118072440's digits is 36
• More coming soon!