21272947123656

Names of 21272947123656

• Cardinal: 21272947123656 can be written as Twenty-one trillion, two hundred seventy-two billion, nine hundred forty-seven million, one hundred twenty-three thousand, six hundred fifty-six.

Scientific notation

• Scientific notation: 2.1272947123656 × 10¹³

Factors of 21272947123656

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 33858770

Divisors of 21272947123656

• Number of divisors d(n): 64
• Complete list of divisors:
  1 2 3 4 6 8 12 24 47 94 141 188 282 376 557 564 1114 1128 1671 2228 3342 4456 6684 13368 26179 52358 78537 104716 157074 209432 314148 628296 33858161 67716322 101574483 135432644 203148966 270865288 406297932 812595864 1591333567 3182667134 4774000701 6365334268 9548001402 12730668536 18858995677 19096002804 37717991354 38192005608 56576987031 75435982708 113153974062 150871965416 226307948124 452615896248 886372796819 1772745593638 2659118390457 3545491187276 5318236780914 7090982374552 10636473561828 21272947123656
• Sum of all divisors σ(n): 54411420660480
• Sum of proper divisors (its aliquot sum) s(n): 33138473536824
• 21272947123656 is an abundant number, because the sum of its proper divisors (33138473536824) is greater than itself. Its abundance is 11865526413168

Bases of 21272947123656

• Binary: 100110101100011111110011101001110010111001000₂
• Hexadecimal: 0x1358FE74E5C8
• Base-36: 7JGNNGS7C

Squares and roots of 21272947123656

• 21272947123656 squared (21272947123656²) is 452538279325864083754806336
• 21272947123656 cubed (21272947123656³) is 9626822887529375851238605321776524284416
• The square root of 21272947123656 is 4612260.5220928273
• The cube root of 21272947123656 is 27708.2578322645

Scales and comparisons

• 21,272,947,123,656 seconds is equal to 676,413 years, 47 weeks, 4 days, 18 hours, 47 minutes, 36 seconds.
• To count from 1 to 21,272,947,123,656 would take you about one million, six hundred ninety-one thousand and thirty-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 21272947123656 cubic inches would be around 2309 feet tall.

Recreational maths with 21272947123656

• 21272947123656 backwards is 65632174927212
• The number of decimal digits it has is: 14
• The sum of 21272947123656's digits is 57
• More coming soon!