155385142191693792

Names of 155385142191693792

• Cardinal: 155385142191693792 can be written as One hundred fifty-five quadrillion, three hundred eighty-five trillion, one hundred forty-two billion, one hundred ninety-one million, six hundred ninety-three thousand, seven hundred ninety-two.

Scientific notation

• Scientific notation: 1.55385142191693792 × 10¹⁷

Factors of 155385142191693792

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 70517808414

Divisors of 155385142191693792

• Number of divisors d(n): 144
• Complete list of divisors:
  1 2 3 4 6 7 8 9 12 14 16 18 21 24 28 32 36 42 48 56 63 72 84 96 112 126 144 168 224 252 288 336 504 672 1008 1093 2016 2186 3279 4372 6558 7651 8744 9837 13116 15302 17488 19674 22953 26232 30604 34976 39348 45906 52464 61208 68859 78696 91812 104928 122416 137718 157392 183624 244832 275436 314784 367248 550872 734496 1101744 2203488 70517807309 141035614618 211553421927 282071229236 423106843854 493624651163 564142458472 634660265781 846213687708 987249302326 1128284916944 1269320531562 1480873953489 1692427375416 1974498604652 2256569833888 2538641063124 2961747906978 3384854750832 3948997209304 4442621860467 5077282126248 5923495813956 6769709501664 7897994418608 8885243720934 10154564252496 11846991627912 15795988837216 17770487441868 20309128504992 23693983255824 35540974883736 47387966511648 71081949767472 77075963388737 142163899534944 154151926777474 231227890166211 308303853554948 462455780332422 539531743721159 616607707109896 693683670498633 924911560664844 1079063487442318 1233215414219792 1387367340997266 1618595231163477 1849823121329688 2158126974884636 2466430828439584 2774734681994532 3237190462326954 3699646242659376 4316253949769272 4855785693490431 5549469363989064 6474380924653908 7399292485318752 8632507899538544 9711571386980862 11098938727978128 12948761849307816 17265015799077088 19423142773961724 22197877455956256 25897523698615632 38846285547923448 51795047397231264 77692571095846896 155385142191693792
• Sum of all divisors σ(n): 505463744803661280
• Sum of proper divisors (its aliquot sum) s(n): 350078602611967488
• 155385142191693792 is an abundant number, because the sum of its proper divisors (350078602611967488) is greater than itself. Its abundance is 194693460420273696

Bases of 155385142191693792

• Binary: 1000101000000010011111011010101011101101011001111111100000₂
• Hexadecimal: 0x22809F6ABB59FE0
• Base-36: 16HZFOVBGAG0

Squares and roots of 155385142191693792

• 155385142191693792 squared (155385142191693792²) is 24144542413932898217623437891339264
• 155385142191693792 cubed (155385142191693792³) is 3751703156142345059448595692160210144282795474649088
• The square root of 155385142191693792 is 394189221.3032895601
• The cube root of 155385142191693792 is 537613.0841977747

Scales and comparisons

• 155,385,142,191,693,792 seconds is equal to 4,940,766,883 years, 46 weeks, 3 days, 4 hours, 43 minutes, 12 seconds.
• To count from 1 to 155,385,142,191,693,792 would take you about fourteen billion, eight hundred twenty-two million, three hundred thousand, six hundred fifty-one 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 155385142191693792 cubic inches would be around 44801.1 feet tall.

Recreational maths with 155385142191693792

• 155385142191693792 backwards is 297396191241583551
• The number of decimal digits it has is: 18
• The sum of 155385142191693792's digits is 81
• More coming soon!