1221226272

Names of 1221226272

• Cardinal: 1221226272 can be written as One billion, two hundred twenty-one million, two hundred twenty-six thousand, two hundred seventy-two.

Scientific notation

• Scientific notation: 1.221226272 × 10⁹

Factors of 1221226272

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 1844

Divisors of 1221226272

• 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 96 112 126 144 168 224 252 288 336 433 504 672 866 1008 1299 1399 1732 2016 2598 2798 3031 3464 3897 4197 5196 5596 6062 6928 7794 8394 9093 9793 10392 11192 12124 12591 13856 15588 16788 18186 19586 20784 22384 24248 25182 27279 29379 31176 33576 36372 39172 41568 44768 48496 50364 54558 58758 62352 67152 72744 78344 88137 96992 100728 109116 117516 124704 134304 145488 156688 176274 201456 218232 235032 290976 313376 352548 402912 436464 470064 605767 705096 872928 940128 1211534 1410192 1817301 2423068 2820384 3634602 4240369 4846136 5451903 7269204 8480738 9692272 10903806 12721107 14538408 16961476 19384544 21807612 25442214 29076816 33922952 38163321 43615224 50884428 58153632 67845904 76326642 87230448 101768856 135691808 152653284 174460896 203537712 305306568 407075424 610613136 1221226272
• Sum of all divisors σ(n): 3980995200
• Sum of proper divisors (its aliquot sum) s(n): 2759768928
• 1221226272 is an abundant number, because the sum of its proper divisors (2759768928) is greater than itself. Its abundance is 1538542656

Bases of 1221226272

• Binary: 1001000110010100110111100100000₂
• Hexadecimal: 0x48CA6F20
• Base-36: K73480

Squares and roots of 1221226272

• 1221226272 squared (1221226272²) is 1491393607423017984
• 1221226272 cubed (1221226272³) is 1821329055277843779589275648
• The square root of 1221226272 is 34946.0480169075
• The cube root of 1221226272 is 1068.8876179411

Scales and comparisons

• 1,221,226,272 seconds is equal to 38 years, 43 weeks, 1 day, 13 hours, 31 minutes, 12 seconds.
• To count from 1 to 1,221,226,272 would take you about seventy-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 1221226272 cubic inches would be around 89.1 feet tall.

Recreational maths with 1221226272

• 1221226272 backwards is 2726221221
• The number of decimal digits it has is: 10
• The sum of 1221226272's digits is 27
• More coming soon!