18221799690

Names of 18221799690

• Cardinal: 18221799690 can be written as Eighteen billion, two hundred twenty-one million, seven hundred ninety-nine thousand, six hundred ninety.

Scientific notation

• Scientific notation: 1.822179969 × 10¹⁰

Factors of 18221799690

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 14
• Sum of prime factors: 58

Divisors of 18221799690

• Number of divisors d(n): 324
• Complete list of divisors:
  1 2 3 5 6 9 10 15 17 18 27 30 31 34 45 51 54 62 81 85 90 93 102 135 153 155 162 170 186 243 255 270 279 289 306 310 405 459 465 486 510 527 558 578 729 765 810 837 867 918 930 961 1054 1215 1377 1395 1445 1458 1530 1581 1674 1734 1922 2187 2295 2430 2511 2601 2635 2754 2790 2883 2890 3162 3645 4131 4185 4335 4374 4590 4743 4805 5022 5202 5270 5766 6561 6885 7290 7533 7803 7905 8262 8370 8649 8670 8959 9486 9610 10935 12393 12555 13005 13122 13770 14229 14415 15066 15606 15810 16337 17298 17918 20655 21870 22599 23409 23715 24786 25110 25947 26010 26877 28458 28830 32674 32805 37179 37665 39015 41310 42687 43245 44795 45198 46818 47430 49011 51894 53754 61965 65610 67797 70227 71145 74358 75330 77841 78030 80631 81685 85374 86490 89590 98022 111537 112995 117045 123930 128061 129735 134385 135594 140454 142290 147033 155682 161262 163370 185895 203391 210681 213435 223074 225990 233523 234090 241893 245055 256122 259470 268770 277729 294066 338985 351135 371790 384183 389205 403155 406782 421362 426870 441099 467046 483786 490110 555458 557685 632043 640305 677970 700569 702270 725679 735165 768366 778410 806310 833187 882198 1016955 1053405 1115370 1152549 1167615 1209465 1264086 1280610 1323297 1388645 1401138 1451358 1470330 1666374 1896129 1920915 2033910 2101707 2106810 2177037 2205495 2305098 2335230 2418930 2499561 2646594 2777290 3160215 3457647 3502845 3628395 3792258 3841830 3969891 4165935 4203414 4354074 4410990 4999122 5762745 6305121 6320430 6531111 6616485 6915294 7005690 7256790 7498683 7939782 8331870 9480645 10508535 10885185 11525490 11909673 12497805 12610242 13062222 13232970 14997366 17288235 18961290 19593333 19849455 21017070 21770370 22496049 23819346 24995610 31525605 32655555 34576470 35729019 37493415 39186666 39698910 44992098 58779999 59548365 63051210 65311110 67488147 71458038 74986830 97966665 107187057 112480245 117559998 119096730 134976294 178645095 195933330 202464441 214374114 224960490 293899995 337440735 357290190 404928882 535935285 587799990 607393323 674881470 1012322205 1071870570 1214786646 1822179969 2024644410 3036966615 3644359938 6073933230 9110899845 18221799690
• Sum of all divisors σ(n): 54000696438
• Sum of proper divisors (its aliquot sum) s(n): 35778896748
• 18221799690 is an abundant number, because the sum of its proper divisors (35778896748) is greater than itself. Its abundance is 17557097058

Bases of 18221799690

• Binary: 10000111110000110101001100100001010₂
• Hexadecimal: 0x43E1A990A
• Base-36: 8DCSEMI

Squares and roots of 18221799690

• 18221799690 squared (18221799690²) is 332033983942484096100
• 18221799690 cubed (18221799690³) is 6050256745672621680144910209000
• The square root of 18221799690 is 134988.1464796077
• The cube root of 18221799690 is 2631.4619181201

Scales and comparisons

• 18,221,799,690 seconds is equal to 579 years, 20 weeks, 4 days, 11 hours, 1 minute, 30 seconds.
• To count from 1 to 18,221,799,690 would take you about one thousand, one hundred fifty-eight 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 18221799690 cubic inches would be around 219.3 feet tall.

Recreational maths with 18221799690

• 18221799690 backwards is 09699712281
• 18221799690 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 18221799690's digits is 54
• More coming soon!