12661350040

Names of 12661350040

• Cardinal: 12661350040 can be written as Twelve billion, six hundred sixty-one million, three hundred fifty thousand and forty.

Scientific notation

• Scientific notation: 1.266135004 × 10¹⁰

Factors of 12661350040

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 1005

Divisors of 12661350040

• Number of divisors d(n): 128
• Complete list of divisors:
  1 2 4 5 8 10 20 23 40 46 89 92 115 178 184 230 239 356 445 460 478 647 712 890 920 956 1195 1294 1780 1912 2047 2390 2588 3235 3560 4094 4780 5176 5497 6470 8188 9560 10235 10994 12940 14881 16376 20470 21271 21988 25880 27485 29762 40940 42542 43976 54970 57583 59524 74405 81880 85084 106355 109940 115166 119048 148810 154633 170168 212710 219880 230332 287915 297620 309266 425420 460664 489233 575830 595240 618532 773165 850840 978466 1151660 1237064 1324409 1546330 1956932 2303320 2446165 2648818 3092660 3556559 3913864 4892330 5297636 6185320 6622045 7113118 9784660 10595272 13244090 13762337 14226236 17782795 19569320 26488180 27524674 28452472 35565590 52976360 55049348 68811685 71131180 110098696 137623370 142262360 275246740 316533751 550493480 633067502 1266135004 1582668755 2532270008 3165337510 6330675020 12661350040
• Sum of all divisors σ(n): 30233088000
• Sum of proper divisors (its aliquot sum) s(n): 17571737960
• 12661350040 is an abundant number, because the sum of its proper divisors (17571737960) is greater than itself. Its abundance is 4910387920

Bases of 12661350040

• Binary: 1011110010101011001101111010011000₂
• Hexadecimal: 0x2F2ACDE98
• Base-36: 5TE8O7S

Squares and roots of 12661350040

• 12661350040 squared (12661350040²) is 160309784835408001600
• 12661350040 cubed (12661350040³) is 2029738300638184494474480064000
• The square root of 12661350040 is 112522.6645614119
• The cube root of 12661350040 is 2330.7373647877

Scales and comparisons

• 12,661,350,040 seconds is equal to 402 years, 30 weeks, 5 days, 9 hours, 40 minutes, 40 seconds.
• To count from 1 to 12,661,350,040 would take you about eight hundred five 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 12661350040 cubic inches would be around 194.2 feet tall.

Recreational maths with 12661350040

• 12661350040 backwards is 04005316621
• The number of decimal digits it has is: 11
• The sum of 12661350040's digits is 28
• More coming soon!