18642120589638

Names of 18642120589638

• Cardinal: 18642120589638 can be written as Eighteen trillion, six hundred forty-two billion, one hundred twenty million, five hundred eighty-nine thousand, six hundred thirty-eight.

Scientific notation

• Scientific notation: 1.8642120589638 × 10¹³

Factors of 18642120589638

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 133928

Divisors of 18642120589638

• Number of divisors d(n): 192
• Complete list of divisors:
  1 2 3 6 7 9 13 14 18 21 26 31 39 42 62 63 78 91 93 117 126 182 186 217 234 273 279 403 434 546 558 651 806 819 1209 1302 1638 1953 2418 2801 2821 3627 3906 5602 5642 7254 8403 8463 16806 16926 19607 25209 25389 36413 39214 50418 50778 58821 72826 86831 109239 117642 131071 173662 176463 218478 254891 260493 262142 327717 352926 393213 509782 520986 607817 655434 764673 781479 786426 917497 1128803 1179639 1215634 1529346 1562958 1703923 1823451 1834994 2257606 2294019 2359278 2752491 3386409 3407846 3646902 4063201 4588038 5111769 5470353 5504982 6772818 7901621 8126402 8257473 10159227 10223538 10940706 11927461 12189603 15335307 15803242 16514946 20318454 23704863 23854922 24379206 28442407 30670614 35782383 36568809 47409726 52821613 56884814 71114589 71564766 73137618 85327221 105643226 107347149 142229178 158464839 170654442 214694298 255981663 316929678 367129871 369751291 475394517 511963326 734259742 739502582 950789034 1101389613 1109253873 2202779226 2218507746 2569909097 3304168839 3327761619 4772688323 5139818194 6608337678 6655523238 7709727291 9545376646 11381026001 14318064969 15419454582 22762052002 23129181873 28636129938 33408818261 34143078003 42954194907 46258363746 66817636522 68286156006 79667182007 85908389814 100226454783 102429234009 147953338013 159334364014 200452909566 204858468018 239001546021 295906676026 300679364349 443860014039 478003092042 601358728698 717004638063 887720028078 1035673366091 1331580042117 1434009276126 2071346732182 2663160084234 3107020098273 6214040196546 9321060294819 18642120589638
• Sum of all divisors σ(n): 51334657081344
• Sum of proper divisors (its aliquot sum) s(n): 32692536491706
• 18642120589638 is an abundant number, because the sum of its proper divisors (32692536491706) is greater than itself. Its abundance is 14050415902068

Bases of 18642120589638

• Binary: 100001111010001110100111110011100000101000110₂
• Hexadecimal: 0x10F474F9C146
• Base-36: 6LW2L9UTI

Squares and roots of 18642120589638

• 18642120589638 squared (18642120589638²) is 347528660078605052792971044
• 18642120589638 cubed (18642120589638³) is 6478671189540668898201427477515140442072
• The square root of 18642120589638 is 4317652.2080452473
• The cube root of 18642120589638 is 26515.4155422707

Scales and comparisons

• 18,642,120,589,638 seconds is equal to 592,761 years, 40 weeks, 14 hours, 27 minutes, 18 seconds.
• To count from 1 to 18,642,120,589,638 would take you about one million, four hundred eighty-one thousand, nine hundred four 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 18642120589638 cubic inches would be around 2209.6 feet tall.

Recreational maths with 18642120589638

• 18642120589638 backwards is 83698502124681
• 18642120589638 is a Harshad number.
• The number of decimal digits it has is: 14
• The sum of 18642120589638's digits is 63
• More coming soon!