18666429912

Names of 18666429912

• Cardinal: 18666429912 can be written as Eighteen billion, six hundred sixty-six million, four hundred twenty-nine thousand, nine hundred twelve.

Scientific notation

• Scientific notation: 1.8666429912 × 10¹⁰

Factors of 18666429912

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 14
• Sum of prime factors: 184

Divisors of 18666429912

• Number of divisors d(n): 384
• Complete list of divisors:
  1 2 3 4 6 8 9 12 13 18 24 26 27 36 39 52 54 59 72 78 81 104 107 108 117 118 156 162 169 177 214 216 234 236 243 312 321 324 338 351 354 428 468 472 486 507 531 642 648 676 702 708 729 767 856 936 963 972 1014 1053 1062 1284 1352 1391 1404 1416 1458 1521 1534 1593 1926 1944 2028 2106 2124 2187 2301 2568 2782 2808 2889 2916 3042 3068 3159 3186 3852 4056 4173 4212 4248 4374 4563 4602 4779 5564 5778 5832 6084 6136 6313 6318 6372 6903 7704 8346 8424 8667 8748 9126 9204 9477 9558 9971 11128 11556 12168 12519 12626 12636 12744 13689 13806 14337 16692 17334 17496 18083 18252 18408 18939 18954 19116 19942 20709 23112 25038 25252 25272 26001 27378 27612 28431 28674 29913 33384 34668 36166 36504 37557 37878 37908 38232 39884 41067 41418 43011 50076 50504 52002 54249 54756 55224 56817 56862 57348 59826 62127 69336 72332 75114 75756 75816 78003 79768 82069 82134 82836 86022 89739 100152 104004 108498 109512 112671 113634 113724 114696 119652 123201 124254 129033 144664 150228 151512 156006 162747 164138 164268 165672 170451 172044 179478 186381 208008 216996 225342 227268 227448 234009 239304 246207 246402 248508 258066 269217 300456 312012 325494 328276 328536 338013 340902 344088 358956 369603 372762 433992 450684 454536 468018 488241 492414 492804 497016 511353 516132 538434 559143 624024 650988 656552 676026 681804 717912 738621 739206 745524 807651 901368 936036 976482 984828 985608 1014039 1022706 1032264 1066897 1076868 1118286 1301976 1352052 1363608 1464723 1477242 1478412 1491048 1534059 1615302 1677429 1872072 1952964 1969656 2028078 2045412 2133794 2153736 2215863 2236572 2422953 2704104 2929446 2954484 2956824 3042117 3068118 3200691 3230604 3354858 3905928 4056156 4090824 4267588 4394169 4431726 4473144 4602177 4845906 5858892 5908968 6084234 6136236 6401382 6461208 6647589 6709716 7268859 8112312 8535176 8788338 8863452 9204354 9602073 9691812 11717784 12168468 12272472 12802764 13182507 13295178 13419432 13806531 14537718 17576676 17726904 18408708 19204146 19383624 19942767 21806577 24336936 25605528 26365014 26590356 27613062 28806219 29075436 35153352 36817416 38408292 39547521 39885534 43613154 52730028 53180712 55226124 57612438 58150872 59828301 76816584 79095042 79771068 86418657 87226308 105460056 110452248 115224876 119656602 158190084 159542136 172837314 174452616 179484903 230449752 239313204 259255971 316380168 345674628 358969806 478626408 518511942 691349256 717939612 777767913 1037023884 1435879224 1555535826 2074047768 2333303739 3111071652 4666607478 6222143304 9333214956 18666429912
• Sum of all divisors σ(n): 58343328000
• Sum of proper divisors (its aliquot sum) s(n): 39676898088
• 18666429912 is an abundant number, because the sum of its proper divisors (39676898088) is greater than itself. Its abundance is 21010468176

Bases of 18666429912

• Binary: 10001011000100110110001110111011000₂
• Hexadecimal: 0x4589B1DD8
• Base-36: 8KPIDI0

Squares and roots of 18666429912

• 18666429912 squared (18666429912²) is 348435605659608327744
• 18666429912 cubed (18666429912³) is 6504048811890349379204901078528
• The square root of 18666429912 is 136625.1437766855
• The cube root of 18666429912 is 2652.6935902127

Scales and comparisons

• 18,666,429,912 seconds is equal to 593 years, 27 weeks, 5 days, 15 hours, 25 minutes, 12 seconds.
• To count from 1 to 18,666,429,912 would take you about one thousand, one hundred eighty-seven 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 18666429912 cubic inches would be around 221.1 feet tall.

Recreational maths with 18666429912

• 18666429912 backwards is 21992466681
• 18666429912 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 18666429912's digits is 54
• More coming soon!