121931790825

Names of 121931790825

• Cardinal: 121931790825 can be written as One hundred twenty-one billion, nine hundred thirty-one million, seven hundred ninety thousand, eight hundred twenty-five.

Scientific notation

• Scientific notation: 1.21931790825 × 10¹¹

Factors of 121931790825

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 3307

Divisors of 121931790825

• Number of divisors d(n): 192
• Complete list of divisors:
  1 3 5 13 15 19 25 31 39 57 65 67 75 93 95 155 195 201 247 285 325 335 403 465 475 589 741 775 871 975 1005 1209 1235 1273 1425 1675 1767 2015 2077 2325 2613 2945 3169 3705 3819 4355 5025 6045 6175 6231 6365 7657 8835 9507 10075 10385 13065 14725 15845 16549 18525 19095 21775 22971 27001 30225 31155 31825 38285 39463 41197 44175 47535 49647 51925 60211 65325 79225 81003 82745 95475 98239 114855 118389 123591 135005 155775 180633 191425 197315 205985 212323 237675 248235 294717 301055 405015 413725 491195 513019 574275 591945 617955 636969 675025 782743 903165 986575 1029925 1061615 1241175 1277107 1473585 1505275 1539057 1866541 2025075 2348229 2455975 2565095 2760199 2959725 3089775 3184845 3831321 3913715 4034137 4515825 5308075 5599623 6385535 6582013 7367925 7695285 8280597 9332705 11741145 12102411 12825475 13800995 15924225 19156605 19568575 19746039 20170685 24265033 27998115 31927675 32910065 38476425 41402985 46663525 52443781 58705725 60512055 69004975 72795099 85566169 95783025 98730195 100853425 121325165 125058247 139990575 157331343 164550325 207014925 256698507 262218905 302560275 363975495 375174741 427830845 493650975 606625825 625291235 786656715 1283492535 1311094525 1625757211 1819877475 1875873705 2139154225 3126456175 3933283575 4877271633 6417462675 8128786055 9379368525 24386358165 40643930275 121931790825
• Sum of all divisors σ(n): 239495782400
• Sum of proper divisors (its aliquot sum) s(n): 117563991575
• 121931790825 is a deficient number, because the sum of its proper divisors (117563991575) is less than itself. Its deficiency is 4367799250

Bases of 121931790825

• Binary: 1110001100011101100110111100111101001₂
• Hexadecimal: 0x1C63B379E9
• Base-36: 1K0J1FXL

Squares and roots of 121931790825

• 121931790825 squared (121931790825²) is 14867361613791554180625
• 121931790825 cubed (121931790825³) is 1812804026412466219503621767765625
• The square root of 121931790825 is 349187.3291300817
• The cube root of 121931790825 is 4958.7511872005

Scales and comparisons

• 121,931,790,825 seconds is equal to 3,877 years, 2 weeks, 5 days, 13 hours, 53 minutes, 45 seconds.
• To count from 1 to 121,931,790,825 would take you about seven thousand, seven hundred fifty-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 121931790825 cubic inches would be around 413.2 feet tall.

Recreational maths with 121931790825

• 121931790825 backwards is 528097139121
• The number of decimal digits it has is: 12
• The sum of 121931790825's digits is 48
• More coming soon!