121990515830

Names of 121990515830

• Cardinal: 121990515830 can be written as One hundred twenty-one billion, nine hundred ninety million, five hundred fifteen thousand, eight hundred thirty.

Scientific notation

• Scientific notation: 1.2199051583 × 10¹¹

Factors of 121990515830

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 6
• Sum of prime factors: 10509

Divisors of 121990515830

• Number of divisors d(n): 64
• Complete list of divisors:
  1 2 5 10 31 47 62 94 155 235 310 470 877 1457 1754 2914 4385 7285 8770 9547 14570 19094 27187 41219 47735 54374 82438 95470 135935 206095 271870 295957 412190 448709 591914 897418 1277789 1479785 2243545 2555578 2959570 4487090 6388945 8372719 12777890 13909979 16745438 27819958 41863595 69549895 83727190 139099790 259554289 393517793 519108578 787035586 1297771445 1967588965 2595542890 3935177930 12199051583 24398103166 60995257915 121990515830
• Sum of all divisors σ(n): 231777165312
• Sum of proper divisors (its aliquot sum) s(n): 109786649482
• 121990515830 is a deficient number, because the sum of its proper divisors (109786649482) is less than itself. Its deficiency is 12203866348

Bases of 121990515830

• Binary: 1110001100111001100111000110001110110₂
• Hexadecimal: 0x1C67338C76
• Base-36: 1K1I04FQ

Squares and roots of 121990515830

• 121990515830 squared (121990515830²) is 14881685952469480588900
• 121990515830 cubed (121990515830³) is 1815424545761816799372083172287000
• The square root of 121990515830 is 349271.4071177313
• The cube root of 121990515830 is 4959.5471402737

Scales and comparisons

• 121,990,515,830 seconds is equal to 3,878 years, 47 weeks, 6 days, 6 hours, 23 minutes, 50 seconds.
• To count from 1 to 121,990,515,830 would take you about seven thousand, seven hundred fifty-seven 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 121990515830 cubic inches would be around 413.3 feet tall.

Recreational maths with 121990515830

• 121990515830 backwards is 038515099121
• The number of decimal digits it has is: 12
• The sum of 121990515830's digits is 44
• More coming soon!