18236997072

Names of 18236997072

• Cardinal: 18236997072 can be written as Eighteen billion, two hundred thirty-six million, nine hundred ninety-seven thousand and seventy-two.

Scientific notation

• Scientific notation: 1.8236997072 × 10¹⁰

Factors of 18236997072

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 817

Divisors of 18236997072

• Number of divisors d(n): 400
• Complete list of divisors:
  1 2 3 4 6 7 8 9 12 14 16 18 21 24 27 28 29 36 42 48 54 56 58 63 72 81 84 87 103 108 112 116 126 144 162 168 174 189 203 206 216 232 252 261 309 324 336 348 378 406 412 432 464 504 522 567 609 618 648 673 696 721 756 783 812 824 927 1008 1044 1134 1218 1236 1296 1346 1392 1442 1512 1566 1624 1648 1827 1854 2019 2088 2163 2268 2349 2436 2472 2692 2781 2884 2987 3024 3132 3248 3654 3708 4038 4176 4326 4536 4698 4711 4872 4944 5384 5481 5562 5768 5974 6057 6264 6489 7308 7416 8076 8343 8652 8961 9072 9396 9422 9744 10768 10962 11124 11536 11948 12114 12528 12978 14133 14616 14832 16152 16443 16686 17304 17922 18171 18792 18844 19467 19517 20909 21924 22248 23896 24228 25956 26883 28266 29232 32304 32886 33372 34608 35844 36342 37584 37688 38934 39034 41818 42399 43848 44496 47792 48456 51912 53766 54513 56532 58401 58551 62727 65772 66744 69319 71688 72684 75376 77868 78068 80649 83636 84798 87696 96912 103824 107532 109026 113064 116802 117102 125454 127197 131544 133488 136619 138638 143376 145368 155736 156136 161298 167272 169596 175653 188181 207957 215064 218052 226128 233604 234204 241947 250908 254394 263088 273238 277276 290736 311472 312272 322596 334544 339192 351306 376362 381591 409857 415914 430128 436104 467208 468408 483894 485233 501816 508788 526959 546476 554552 564543 623871 645192 678384 702612 752724 763182 819714 831828 872208 934416 936816 967788 970466 1003632 1017576 1053918 1092952 1109104 1129086 1229571 1247742 1290384 1405224 1455699 1505448 1526364 1580877 1639428 1663656 1693629 1871613 1935576 1940932 2010251 2035152 2107836 2185904 2258172 2459142 2495484 2810448 2911398 3010896 3052728 3161754 3278856 3327312 3387258 3688713 3743226 3871152 3881864 4020502 4215672 4367097 4516344 4918284 4990968 5614839 5822796 6030753 6105456 6323508 6557712 6774516 7377426 7486452 7763728 8041004 8431344 8734194 9032688 9836568 9981936 11066139 11229678 11645592 12061506 12647016 13101291 13549032 14071757 14754852 14972904 16082008 17468388 18092259 19673136 22132278 22459356 23291184 24123012 25294032 26202582 27098064 28143514 29509704 29945808 32164016 34936776 36184518 39303873 42215271 44264556 44918712 48246024 52405164 54276777 56287028 59019408 69873552 72369036 78607746 84430542 88529112 89837424 96492048 104810328 108553554 112574056 126645813 144738072 157215492 162830331 168861084 177058224 209620656 217107108 225148112 253291626 289476144 314430984 325660662 337722168 379937439 434214216 506583252 628861968 651321324 675444336 759874878 868428432 1013166504 1139812317 1302642648 1519749756 2026333008 2279624634 2605285296 3039499512 4559249268 6078999024 9118498536 18236997072
• Sum of all divisors σ(n): 63103223040
• Sum of proper divisors (its aliquot sum) s(n): 44866225968
• 18236997072 is an abundant number, because the sum of its proper divisors (44866225968) is greater than itself. Its abundance is 26629228896

Bases of 18236997072

• Binary: 10000111111000000100111110111010000₂
• Hexadecimal: 0x43F027DD0
• Base-36: 8DLU500

Squares and roots of 18236997072

• 18236997072 squared (18236997072²) is 332588062204136573184
• 18236997072 cubed (18236997072³) is 6065407516598992551444721717248
• The square root of 18236997072 is 135044.4262900177
• The cube root of 18236997072 is 2632.1932805527

Scales and comparisons

• 18,236,997,072 seconds is equal to 579 years, 45 weeks, 5 days, 8 hours, 31 minutes, 12 seconds.
• To count from 1 to 18,236,997,072 would take you about one thousand, one hundred fifty-nine 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 18236997072 cubic inches would be around 219.3 feet tall.

Recreational maths with 18236997072

• 18236997072 backwards is 27079963281
• 18236997072 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 18236997072's digits is 54
• More coming soon!