138953775615678621

Names of 138953775615678621

• Cardinal: 138953775615678621 can be written as One hundred thirty-eight quadrillion, nine hundred fifty-three trillion, seven hundred seventy-five billion, six hundred fifteen million, six hundred seventy-eight thousand, six hundred twenty-one.

Scientific notation

• Scientific notation: 1.38953775615678621 × 10¹⁷

Factors of 138953775615678621

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 138050

Divisors of 138953775615678621

• Number of divisors d(n): 128
• Complete list of divisors:
  1 3 9 13 27 39 117 351 607 787 1821 2361 5463 6361 7083 7891 10231 16389 19083 21249 23673 30693 57249 71019 82693 92079 130279 171747 213057 248079 276237 390837 477709 744237 1172511 1433127 1693627 2232711 3517533 3861127 4299381 5006107 5080881 6210217 11583381 12898143 15018321 15242643 18630651 34750143 45054963 45727929 50194651 55891953 65079391 79079353 102529573 104250429 135164889 150583953 167675859 195238173 237238059 307588719 451751859 585714519 711714177 828704719 922766157 1028031589 1332884449 1355255577 1757143557 2135142531 2486114157 2768298471 3038706949 3084094767 3998653347 7458342471 9116120847 9252284301 10773161347 11995960041 22375027413 27348362541 27756852903 32319484041 35987880123 39503190337 62235450811 82045087623 96958452123 118509571011 186706352433 290875356369 355528713033 503023764433 560119057299 652190613853 809060860543 1066586139099 1509071293299 1680357171897 1956571841559 2427182581629 4527213879897 5869715524677 6539308937629 7281547744887 8478477980089 13581641639691 17609146574031 19617926812887 21844643234661 25435433940267 58853780438661 76306301820801 176561341315983 228918905462403 395879702608771 1187639107826313 3562917323478939 5146436133914023 10688751970436817 15439308401742069 46317925205226207 138953775615678621
• Sum of all divisors σ(n): 222376678127206400
• Sum of proper divisors (its aliquot sum) s(n): 83422902511527779
• 138953775615678621 is a deficient number, because the sum of its proper divisors (83422902511527779) is less than itself. Its deficiency is 55530873104150842

Bases of 138953775615678621

• Binary: 111101101101010011011100100000011110001011001100010011101₂
• Hexadecimal: 0x1EDA9B903C5989D
• Base-36: 1207039TEM59

Squares and roots of 138953775615678621

• 138953775615678621 squared (138953775615678621²) is 19308151757852362528548714356461641
• 138953775615678621 cubed (138953775615678621³) is 2682940586914087914343657614395986245953980570277061
• The square root of 138953775615678621 is 372765040.7638551891
• The cube root of 138953775615678621 is 517952.7190285283

Scales and comparisons

• 138,953,775,615,678,621 seconds is equal to 4,418,300,252 years, 17 weeks, 1 day, 3 hours, 10 minutes, 21 seconds.
• To count from 1 to 138,953,775,615,678,621 would take you about thirteen billion, two hundred fifty-four million, nine hundred thousand, seven hundred fifty-six 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 138953775615678621 cubic inches would be around 43162.7 feet tall.

Recreational maths with 138953775615678621

• 138953775615678621 backwards is 126876516577359831
• The number of decimal digits it has is: 18
• The sum of 138953775615678621's digits is 90
• More coming soon!