138231790156818

Names of 138231790156818

• Cardinal: 138231790156818 can be written as One hundred thirty-eight trillion, two hundred thirty-one billion, seven hundred ninety million, one hundred fifty-six thousand, eight hundred eighteen.

Scientific notation

• Scientific notation: 1.38231790156818 × 10¹⁴

Factors of 138231790156818

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 723

Divisors of 138231790156818

• Number of divisors d(n): 162
• Complete list of divisors:
  1 2 3 6 9 18 27 54 81 162 197 243 394 486 521 591 729 1042 1182 1458 1563 1773 2187 3126 3546 4374 4689 5319 6561 9378 10638 13122 14067 15957 28134 31914 38809 42201 47871 77618 84402 95742 102637 116427 126603 143613 205274 232854 253206 271441 287226 307911 349281 379809 430839 542882 615822 698562 759618 814323 861678 923733 1047843 1139427 1292517 1628646 1847466 2095686 2278854 2442969 2585034 2771199 3143529 3418281 4885938 5542398 6287058 6836562 7328907 8313597 9430587 14657814 16627194 18861174 20219489 21986721 24940791 28291761 40438978 43973442 49881582 53473877 56583522 60658467 65960163 74822373 84875283 106947754 121316934 131920326 149644746 160421631 169750566 181975401 197880489 224467119 254625849 320843262 363950802 395760978 448934238 481264893 509251698 545926203 593641467 673401357 962529786 1091852406 1187282934 1346802714 1443794679 1637778609 1780924401 2887589358 3275557218 3561848802 4331384037 4913335827 8662768074 9826671654 10534353769 12994152111 14740007481 21068707538 25988304222 29480014962 31603061307 38982456333 44220022443 63206122614 77964912666 88440044886 94809183921 116947368999 132660067329 189618367842 233894737998 265320134658 284427551763 350842106997 568855103526 701684213994 853282655289 1706565310578 2559847965867 5119695931734 7679543897601 15359087795202 23038631692803 46077263385606 69115895078409 138231790156818
• Sum of all divisors σ(n): 313193586456543
• Sum of proper divisors (its aliquot sum) s(n): 174961796299725
• 138231790156818 is an abundant number, because the sum of its proper divisors (174961796299725) is greater than itself. Its abundance is 36730006142907

Bases of 138231790156818

• Binary: 11111011011100010011000101111111011110000010010₂
• Hexadecimal: 0x7DB898BFBC12
• Base-36: 1CZYT2TJ4I

Squares and roots of 138231790156818

• 138231790156818 squared (138231790156818²) is 19108027809958565713031885124
• 138231790156818 cubed (138231790156818³) is 2641336890536835069447106165751126121375432
• The square root of 138231790156818 is 11757201.6295042759
• The cube root of 138231790156818 is 51705.4089542197

Scales and comparisons

• 138,231,790,156,818 seconds is equal to 4,395,343 years, 18 weeks, 16 hours, 18 seconds.
• To count from 1 to 138,231,790,156,818 would take you about ten million, nine hundred eighty-eight thousand, three 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 138231790156818 cubic inches would be around 4308.8 feet tall.

Recreational maths with 138231790156818

• 138231790156818 backwards is 818651097132831
• The number of decimal digits it has is: 15
• The sum of 138231790156818's digits is 63
• More coming soon!