18152720040

Names of 18152720040

• Cardinal: 18152720040 can be written as Eighteen billion, one hundred fifty-two million, seven hundred twenty thousand and forty.

Scientific notation

• Scientific notation: 1.815272004 × 10¹⁰

Factors of 18152720040

• Number of distinct prime factors ω(n): 8
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 717

Divisors of 18152720040

• Number of divisors d(n): 512
• Complete list of divisors:
  1 2 3 4 5 6 7 8 10 12 13 14 15 20 21 24 26 28 30 35 39 40 42 43 52 56 60 65 67 70 78 84 86 91 104 105 120 129 130 134 140 156 168 172 182 195 201 210 215 258 260 268 273 280 301 312 335 344 364 390 402 420 430 455 469 516 520 536 546 559 577 602 645 670 728 780 804 840 860 871 903 910 938 1005 1032 1092 1118 1154 1204 1290 1340 1365 1407 1505 1560 1608 1677 1720 1731 1742 1806 1820 1876 2010 2184 2236 2308 2345 2408 2580 2613 2680 2730 2795 2814 2881 2885 3010 3354 3462 3484 3612 3640 3752 3913 4020 4039 4355 4472 4515 4616 4690 5160 5226 5460 5590 5628 5762 5770 6020 6097 6708 6924 6968 7035 7224 7501 7826 8040 8078 8385 8643 8655 8710 9030 9380 10452 10920 11180 11256 11524 11540 11739 12040 12117 12194 13065 13416 13848 14070 14405 15002 15652 16156 16770 17286 17310 17420 18060 18291 18760 19565 20167 20195 20904 22360 22503 23048 23080 23478 24234 24388 24811 26130 28140 28810 30004 30485 31304 32312 33540 34572 34620 34840 36120 36582 37453 37505 38659 39130 40334 40390 43215 45006 46956 48468 48776 49622 52260 52507 56280 57620 58695 60008 60501 60585 60970 67080 69144 69240 73164 74433 74906 75010 77318 78260 80668 80780 86430 90012 91455 93912 96936 99244 100835 104520 105014 112359 112515 115240 115977 117390 121002 121170 121940 124055 146328 148866 149812 150020 154636 156520 157521 161336 161560 172860 173677 180024 182910 187265 193295 198488 201670 210028 224718 225030 231954 234780 242004 242340 243880 248110 262171 262535 270613 297732 299624 300040 302505 309272 315042 322543 345720 347354 365820 372165 374530 386590 403340 420056 449436 450060 463908 469560 484008 484680 496220 502567 521031 524342 525070 541226 561795 579885 595464 605010 630084 645086 694708 731640 744330 749060 773180 786513 787605 806680 811839 868385 898872 900120 927816 967629 992440 1005134 1042062 1048684 1050140 1082452 1123590 1159770 1210020 1260168 1290172 1310855 1353065 1389416 1488660 1498120 1507701 1546360 1573026 1575210 1612715 1623678 1662337 1736770 1935258 2010268 2084124 2097368 2100280 2164904 2247180 2257801 2319540 2420040 2512835 2580344 2605155 2621710 2706130 2977320 3015402 3146052 3150420 3225430 3247356 3324674 3473540 3517969 3870516 3932565 4020536 4059195 4168248 4494360 4515602 4639080 4838145 4987011 5025670 5210310 5243420 5412260 6030804 6292104 6300840 6450860 6494712 6649348 6773403 6947080 7035938 7538505 7741032 7865130 8118390 8311685 9031204 9676290 9974022 10051340 10420620 10486840 10553907 10824520 11289005 11636359 12061608 12901720 13298696 13546806 14071876 15077010 15730260 16236780 16623370 17589845 18062408 19352580 19948044 20102680 20841240 21107814 21610381 22578010 23272718 24935055 27093612 28143752 30154020 31460520 32473560 33246740 33867015 34909077 35179690 38705160 39896088 42215628 43220762 45156020 46545436 49870110 52769535 54187224 58181795 60308040 64831143 66493480 67734030 69818154 70359380 84431256 86441524 90312040 93090872 99740220 105539070 108051905 116363590 129662286 135468060 139636308 140718760 151272667 172883048 174545385 199480440 211078140 216103810 232727180 259324572 270936120 279272616 302545334 324155715 349090770 422156280 432207620 453818001 465454360 518649144 605090668 648311430 698181540 756363335 864415240 907636002 1210181336 1296622860 1396363080 1512726670 1815272004 2269090005 2593245720 3025453340 3630544008 4538180010 6050906680 9076360020 18152720040
• Sum of all divisors σ(n): 69728440320
• Sum of proper divisors (its aliquot sum) s(n): 51575720280
• 18152720040 is an abundant number, because the sum of its proper divisors (51575720280) is greater than itself. Its abundance is 33423000240

Bases of 18152720040

• Binary: 10000111001111111001000011010101000₂
• Hexadecimal: 0x439FC86A8
• Base-36: 8C7NSFC

Squares and roots of 18152720040

• 18152720040 squared (18152720040²) is 329521244850617601600
• 18152720040 cubed (18152720040³) is 5981706905005552942941056064000
• The square root of 18152720040 is 134732.0304901547
• The cube root of 18152720040 is 2628.1323775143

Scales and comparisons

• 18,152,720,040 seconds is equal to 577 years, 10 weeks, 2 days, 22 hours, 14 minutes.
• To count from 1 to 18,152,720,040 would take you about one thousand, one hundred fifty-four 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 18152720040 cubic inches would be around 219 feet tall.

Recreational maths with 18152720040

• 18152720040 backwards is 04002725181
• 18152720040 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 18152720040's digits is 30
• More coming soon!