18029385990

Names of 18029385990

• Cardinal: 18029385990 can be written as Eighteen billion, twenty-nine million, three hundred eighty-five thousand, nine hundred ninety.

Scientific notation

• Scientific notation: 1.802938599 × 10¹⁰

Factors of 18029385990

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 1642

Divisors of 18029385990

• Number of divisors d(n): 288
• Complete list of divisors:
  1 2 3 5 6 7 9 10 11 14 15 18 21 22 30 33 35 42 45 55 63 66 70 77 90 99 105 110 121 126 154 163 165 198 210 231 242 315 326 330 363 385 462 489 495 605 630 693 726 770 815 847 978 990 1089 1141 1155 1210 1386 1451 1467 1630 1694 1793 1815 2178 2282 2310 2445 2541 2902 2934 3423 3465 3586 3630 4235 4353 4890 5082 5379 5445 5705 6846 6930 7255 7335 7623 8470 8706 8965 10157 10269 10758 10890 11410 12551 12705 13059 14510 14670 15246 15961 16137 17115 17930 19723 20314 20538 21765 25102 25410 26118 26895 30471 31922 32274 34230 37653 38115 39446 43530 47883 50785 51345 53790 59169 60942 62755 65295 75306 76230 79805 80685 91413 95766 98615 101570 102690 111727 112959 118338 125510 130590 138061 143649 152355 159610 161370 175571 177507 182826 188265 197230 223454 225918 236513 239415 276122 287298 295845 304710 335181 351142 355014 376530 414183 457065 473026 478830 526713 558635 564795 591690 670362 690305 709539 718245 828366 877855 887535 914130 1005543 1053426 1117270 1129590 1182565 1228997 1242549 1380610 1419078 1436490 1580139 1655591 1675905 1755710 1775070 2011086 2070915 2128617 2365130 2457994 2485098 2601643 2633565 3160278 3311182 3351810 3547695 3686991 4141830 4257234 4966773 5027715 5203286 5267130 6144985 6212745 7095390 7373982 7804929 7900695 8277955 9933546 10055430 10643085 11060973 12289970 12425490 13008215 14900319 15609858 15801390 16555910 18211501 18434955 21286170 22121946 23414787 24833865 26016430 28618073 29800638 36423002 36869910 39024645 46829574 49667730 54634503 55304865 57236146 74501595 78049290 85854219 91057505 109269006 110609730 117073935 143090365 149003190 163903509 171708438 182115010 200326511 234147870 257562657 273172515 286180730 327807018 400653022 429271095 515125314 546345030 600979533 819517545 858542190 1001632555 1201959066 1287813285 1639035090 1802938599 2003265110 2575626570 3004897665 3605877198 6009795330 9014692995 18029385990
• Sum of all divisors σ(n): 59288156928
• Sum of proper divisors (its aliquot sum) s(n): 41258770938
• 18029385990 is an abundant number, because the sum of its proper divisors (41258770938) is greater than itself. Its abundance is 23229384948

Bases of 18029385990

• Binary: 10000110010101000101001100100000110₂
• Hexadecimal: 0x432A29906
• Base-36: 8A68B9I

Squares and roots of 18029385990

• 18029385990 squared (18029385990²) is 325058759176408280100
• 18029385990 cubed (18029385990³) is 5860609838621919383754935799000
• The square root of 18029385990 is 134273.5491077823
• The cube root of 18029385990 is 2622.1667869683

Scales and comparisons

• 18,029,385,990 seconds is equal to 573 years, 14 weeks, 3 days, 10 hours, 46 minutes, 30 seconds.
• To count from 1 to 18,029,385,990 would take you about one thousand, one hundred forty-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 18029385990 cubic inches would be around 218.5 feet tall.

Recreational maths with 18029385990

• 18029385990 backwards is 09958392081
• The number of decimal digits it has is: 11
• The sum of 18029385990's digits is 54
• More coming soon!