18439728450

Names of 18439728450

• Cardinal: 18439728450 can be written as Eighteen billion, four hundred thirty-nine million, seven hundred twenty-eight thousand, four hundred fifty.

Scientific notation

• Scientific notation: 1.843972845 × 10¹⁰

Factors of 18439728450

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 2586

Divisors of 18439728450

• Number of divisors d(n): 288
• Complete list of divisors:
  1 2 3 5 6 10 11 13 15 22 25 26 30 31 33 39 50 55 62 65 66 75 78 93 110 121 130 143 150 155 165 186 195 242 275 286 310 325 330 341 363 390 403 429 465 550 605 650 682 715 726 775 806 825 858 930 975 1023 1209 1210 1430 1550 1573 1650 1705 1815 1950 2015 2046 2145 2325 2418 2521 3025 3146 3410 3575 3630 3751 4030 4290 4433 4650 4719 5042 5115 6045 6050 7150 7502 7563 7865 8525 8866 9075 9438 10075 10230 10725 11253 12090 12605 13299 15126 15730 17050 18150 18755 20150 21450 22165 22506 23595 25210 25575 26598 27731 30225 32773 37510 37815 39325 44330 47190 48763 51150 55462 56265 60450 63025 65546 66495 75630 78151 78650 83193 93775 97526 98319 110825 112530 117975 126050 132990 138655 146289 156302 163865 166386 187550 189075 196638 221650 234453 235950 243815 277310 281325 292578 305041 327730 332475 360503 378150 390755 415965 468906 487630 491595 562650 610082 664950 693275 721006 731445 781510 819325 831930 859661 915123 983190 1015963 1081509 1172265 1219075 1386550 1462890 1525205 1638650 1719322 1802515 1830246 1953775 2031926 2079825 2163018 2344530 2438150 2457975 2578983 3047889 3050410 3605030 3657225 3907550 3965533 4159650 4298305 4575615 4915950 5079815 5157966 5407545 5861325 6095778 7314450 7626025 7931066 8596610 9012575 9151230 9456271 10159630 10815090 11175593 11722650 11896599 12894915 15239445 15252050 18025150 18912542 19827665 21491525 22351186 22878075 23793198 25399075 25789830 27037725 28368813 30478890 33526779 39655330 42983050 45756150 47281355 50798150 54075450 55877965 56737626 59482995 64474575 67053558 76197225 94562710 99138325 111755930 118965990 122931523 128949150 141844065 152394450 167633895 198276650 236406775 245863046 279389825 283688130 297414975 335267790 368794569 472813550 558779650 594829950 614657615 709220325 737589138 838169475 1229315230 1418440650 1676338950 1843972845 3073288075 3687945690 6146576150 9219864225 18439728450
• Sum of all divisors σ(n): 55900755456
• Sum of proper divisors (its aliquot sum) s(n): 37461027006
• 18439728450 is an abundant number, because the sum of its proper divisors (37461027006) is greater than itself. Its abundance is 19021298556

Bases of 18439728450

• Binary: 10001001011000101111110110101000010₂
• Hexadecimal: 0x44B17ED42
• Base-36: 8GYJDJ6

Squares and roots of 18439728450

• 18439728450 squared (18439728450²) is 340023585309739402500
• 18439728450 cubed (18439728450³) is 6269942579707003722365251125000
• The square root of 18439728450 is 135792.9617100973
• The cube root of 18439728450 is 2641.9109428345

Scales and comparisons

• 18,439,728,450 seconds is equal to 586 years, 16 weeks, 6 days, 18 hours, 47 minutes, 30 seconds.
• To count from 1 to 18,439,728,450 would take you about one thousand, one hundred seventy-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 18439728450 cubic inches would be around 220.2 feet tall.

Recreational maths with 18439728450

• 18439728450 backwards is 05482793481
• The number of decimal digits it has is: 11
• The sum of 18439728450's digits is 51
• More coming soon!