18438063691812387534

Names of 18438063691812387534

• Cardinal: 18438063691812387534 can be written as Eighteen quintillion, four hundred thirty-eight quadrillion, sixty-three trillion, six hundred ninety-one billion, eight hundred twelve million, three hundred eighty-seven thousand, five hundred thirty-four.

Scientific notation

• Scientific notation: 1.8438063691812387534 × 10¹⁹

Factors of 18438063691812387534

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 1735

Divisors of 18438063691812387534

• Number of divisors d(n): 128
• Complete list of divisors:
  1 2 3 6 9 18 27 54 643 1087 1286 1929 2174 3261 3858 5787 6522 9783 11574 17361 19566 29349 34722 58698 413449 698941 826898 1181569 1240347 1397882 2096823 2363138 2480694 3544707 3721041 4193646 6290469 7089414 7442082 10634121 11163123 12580938 18871407 21268242 22326246 31902363 37742814 63804726 265847707 449419063 531695414 759748867 797543121 898838126 1284365503 1348257189 1519497734 1595086242 2279246601 2392629363 2568731006 2696514378 3853096509 4044771567 4558493202 4785258726 6837739803 7177888089 7706193018 8089543134 11559289527 12134314701 13675479606 14355776178 20513219409 23118579054 24268629402 34677868581 41026438818 69355737162 288976457509 488518521481 577952915018 825847018429 866929372527 977037042962 1465555564443 1651694036858 1733858745054 2477541055287 2600788117581 2931111128886 4396666693329 4955082110574 5201576235162 7432623165861 7802364352743 8793333386658 13190000079987 14865246331722 15604728705486 22297869497583 26380000159974 44595738995166 314117409312283 531019632849847 628234818624566 942352227936849 1062039265699694 1593058898549541 1884704455873698 2827056683810547 3186117797099082 4779176695648623 5654113367621094 8481170051431641 9558353391297246 14337530086945869 16962340102863282 28675060173891738 341445623922451621 682891247844903242 1024336871767354863 2048673743534709726 3073010615302064589 6146021230604129178 9219031845906193767 18438063691812387534
• Sum of all divisors σ(n): 41075084048194560000
• Sum of proper divisors (its aliquot sum) s(n): 22637020356382172466
• 18438063691812387534 is an abundant number, because the sum of its proper divisors (22637020356382172466) is greater than itself. Its abundance is 4198956664569784932

Bases of 18438063691812387534

• Binary: 1111111111100001001010010011110100011000100000010011101011001110₂
• Hexadecimal: 0xFFE1293D18813ACE
• Base-36: 3W30K39S01DJI

Squares and roots of 18438063691812387534

• 18438063691812387534 squared (18438063691812387534²) is 339962192703330249668992829493398601156
• 18438063691812387534 cubed (18438063691812387534³) is 6268244561872199658587312713137784073180458785668172389304
• The square root of 18438063691812387534 is 4293956647.6400745719
• The cube root of 18438063691812387534 is 2641831.4356037177

Scales and comparisons

• 18,438,063,691,812,387,534 seconds is equal to 293,274,701,009 years, 3 weeks, 3 days, 15 hours, 30 minutes, 7 seconds.
• To count from 1 to 18,438,063,691,812,387,534 would take you about two hundred ninety-three billion, two hundred seventy-four million, seven hundred one thousand and 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 18438063691812387534 cubic inches would be around 220152.6 feet tall.

Recreational maths with 18438063691812387534

• 18438063691812387534 backwards is 43578321819636083481
• The number of decimal digits it has is: 20
• The sum of 18438063691812387534's digits is 90
• More coming soon!