18739301490

Names of 18739301490

• Cardinal: 18739301490 can be written as Eighteen billion, seven hundred thirty-nine million, three hundred one thousand, four hundred ninety.

Scientific notation

• Scientific notation: 1.873930149 × 10¹⁰

Factors of 18739301490

• Number of distinct prime factors ω(n): 8
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 623

Divisors of 18739301490

• Number of divisors d(n): 384
• Complete list of divisors:
  1 2 3 5 6 7 9 10 13 14 15 18 21 26 29 30 35 39 42 45 58 63 65 70 78 87 90 91 105 117 126 130 145 174 182 195 203 210 234 257 261 273 290 307 315 377 390 406 435 455 514 522 546 585 609 614 630 754 771 819 870 910 921 1015 1131 1170 1218 1285 1305 1365 1535 1542 1638 1799 1827 1842 1885 2030 2149 2262 2313 2570 2610 2639 2730 2763 3045 3070 3341 3393 3598 3654 3770 3855 3991 4095 4298 4605 4626 5278 5397 5526 5655 6090 6447 6682 6786 7453 7710 7917 7982 8190 8903 8995 9135 9210 10023 10745 10794 11310 11565 11973 12894 13195 13815 14906 15834 16191 16705 16965 17806 17990 18270 19341 19955 20046 21490 22359 23130 23387 23751 23946 26390 26709 26985 27630 27937 30069 32235 32382 33410 33930 35919 37265 38682 39585 39910 44515 44718 46774 47502 50115 52171 53418 53970 55874 59865 60138 62321 64470 67077 70161 71838 74530 78899 79170 80127 80955 83811 89030 96705 96889 100230 104342 111795 115739 116935 118755 119730 124642 133545 134154 139685 140322 150345 156513 157798 160254 161910 167622 179595 186963 193410 193778 210483 223590 231478 233870 236697 237510 251433 260855 267090 279370 290667 300690 311605 313026 335385 347217 350805 359190 373926 394495 400635 419055 420966 469539 473394 484445 502866 521710 552293 560889 578695 581334 623210 670770 678223 694434 701610 710091 782565 788990 801270 810173 838110 872001 934815 939078 968890 1025687 1041651 1052415 1104586 1121778 1157390 1183485 1257165 1356446 1420182 1453335 1565130 1620346 1656879 1736085 1744002 1869630 2034669 2051374 2083302 2104830 2288071 2347695 2366970 2430519 2514330 2761465 2804445 2906670 3077061 3313758 3391115 3472170 3550455 4050865 4069338 4360005 4576142 4695390 4861038 4970637 5128435 5208255 5522930 5608890 6104007 6154122 6782230 6864213 7100910 7179809 7291557 8101730 8284395 8720010 9231183 9941274 10173345 10256870 10416510 11440355 12152595 12208014 13728426 14359618 14583114 15385305 16016497 16568790 18462366 20346690 20592639 21539427 22880710 24305190 24853185 29744923 30520035 30770610 32032994 34321065 35899045 36457785 41185278 43078854 46155915 48049491 49706370 59489846 61040070 64618281 68642130 71798090 72915570 80082485 89234769 92311830 96098982 102963195 107697135 129236562 144148473 148724615 160164970 178469538 205926390 208214461 215394270 240247455 267704307 288296946 297449230 323091405 416428922 446173845 480494910 535408614 624643383 646182810 720742365 892347690 1041072305 1249286766 1338521535 1441484730 1873930149 2082144610 2677043070 3123216915 3747860298 6246433830 9369650745 18739301490
• Sum of all divisors σ(n): 62477775360
• Sum of proper divisors (its aliquot sum) s(n): 43738473870
• 18739301490 is an abundant number, because the sum of its proper divisors (43738473870) is greater than itself. Its abundance is 24999172380

Bases of 18739301490

• Binary: 10001011100111100110000110001110010₂
• Hexadecimal: 0x45CF30C72
• Base-36: 8LWW9KI

Squares and roots of 18739301490

• 18739301490 squared (18739301490²) is 351161420333116220100
• 18739301490 cubed (18739301490³) is 6580519727278881079663097949000
• The square root of 18739301490 is 136891.5683670839
• The cube root of 18739301490 is 2656.1410440087

Scales and comparisons

• 18,739,301,490 seconds is equal to 595 years, 44 weeks, 2 days, 1 hour, 31 minutes, 30 seconds.
• To count from 1 to 18,739,301,490 would take you about one thousand, one hundred ninety-one 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 18739301490 cubic inches would be around 221.3 feet tall.

Recreational maths with 18739301490

• 18739301490 backwards is 09410393781
• 18739301490 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 18739301490's digits is 45
• More coming soon!