21233269728

Names of 21233269728

• Cardinal: 21233269728 can be written as Twenty-one billion, two hundred thirty-three million, two hundred sixty-nine thousand, seven hundred twenty-eight.

Scientific notation

• Scientific notation: 2.1233269728 × 10¹⁰

Factors of 21233269728

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 32104

Divisors of 21233269728

• Number of divisors d(n): 216
• Complete list of divisors:
  1 2 3 4 6 8 9 11 12 16 18 19 22 24 32 33 36 38 44 48 57 66 72 76 88 96 99 114 121 132 144 152 171 176 198 209 228 242 264 288 304 342 352 363 396 418 456 484 528 608 627 684 726 792 836 912 968 1056 1089 1254 1368 1452 1584 1672 1824 1881 1936 2178 2299 2508 2736 2904 3168 3344 3762 3872 4356 4598 5016 5472 5808 6688 6897 7524 8712 9196 10032 11616 13794 15048 17424 18392 20064 20691 27588 30096 32069 34848 36784 41382 55176 60192 64138 73568 82764 96207 110352 128276 165528 192414 220704 256552 288621 331056 352759 384828 513104 577242 609311 662112 705518 769656 1026208 1058277 1154484 1218622 1411036 1539312 1827933 2116554 2308968 2437244 2822072 3078624 3174831 3655866 3880349 4233108 4617936 4874488 5483799 5644144 6349662 6702421 7311732 7760698 8466216 9235872 9748976 10967598 11288288 11641047 12699324 13404842 14623464 15521396 16932432 19497952 20107263 21935196 23282094 25398648 26809684 29246928 31042792 33864864 34923141 40214526 43870392 46564188 50797296 53619368 58493856 60321789 62085584 69846282 73726631 80429052 87740784 93128376 101594592 107238736 120643578 124171168 139692564 147453262 160858104 175481568 186256752 214477472 221179893 241287156 279385128 294906524 321716208 372513504 442359786 482574312 558770256 589813048 643432416 663539679 884719572 965148624 1117540512 1179626096 1327079358 1769439144 1930297248 2359252192 2654158716 3538878288 5308317432 7077756576 10616634864 21233269728
• Sum of all divisors σ(n): 69865777800
• Sum of proper divisors (its aliquot sum) s(n): 48632508072
• 21233269728 is an abundant number, because the sum of its proper divisors (48632508072) is greater than itself. Its abundance is 27399238344

Bases of 21233269728

• Binary: 10011110001100110011111101111100000₂
• Hexadecimal: 0x4F199FBE0
• Base-36: 9R5QNS0

Squares and roots of 21233269728

• 21233269728 squared (21233269728²) is 450851743342001193984
• 21233269728 cubed (21233269728³) is 9573056673719739503160322916352
• The square root of 21233269728 is 145716.4017123675
• The cube root of 21233269728 is 2769.1020356509

Scales and comparisons

• 21,233,269,728 seconds is equal to 675 years, 7 weeks, 6 days, 10 hours, 28 minutes, 48 seconds.
• To count from 1 to 21,233,269,728 would take you about one thousand, three hundred fifty 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 21233269728 cubic inches would be around 230.8 feet tall.

Recreational maths with 21233269728

• 21233269728 backwards is 82796233212
• The number of decimal digits it has is: 11
• The sum of 21233269728's digits is 45
• More coming soon!