20991707072

Names of 20991707072

• Cardinal: 20991707072 can be written as Twenty billion, nine hundred ninety-one million, seven hundred seven thousand and seventy-two.

Scientific notation

• Scientific notation: 2.0991707072 × 10¹⁰

Factors of 20991707072

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 641

Divisors of 20991707072

• Number of divisors d(n): 224
• Complete list of divisors:
  1 2 4 7 8 14 16 19 28 29 32 38 56 58 64 76 112 116 133 152 203 224 232 266 277 304 307 406 448 464 532 551 554 608 614 812 928 1064 1102 1108 1216 1228 1624 1856 1939 2128 2149 2204 2216 2456 3248 3857 3878 4256 4298 4408 4432 4912 5263 5833 6496 7714 7756 8033 8512 8596 8816 8864 8903 9824 10526 11666 12992 15428 15512 16066 17192 17632 17728 17806 19648 21052 23332 30856 31024 32132 34384 35264 35612 36841 40831 42104 46664 56231 61712 62048 62321 64264 68768 71224 73682 81662 84208 85039 93328 112462 123424 124096 124642 128528 137536 142448 147364 152627 163324 168416 169157 170078 186656 224924 246848 249284 257056 284896 294728 305254 326648 336832 338314 340156 373312 449848 498568 514112 569792 589456 595273 610508 653296 676628 680312 899696 997136 1068389 1178912 1184099 1190546 1221016 1306592 1353256 1360624 1615741 1799392 1994272 2136778 2357824 2368198 2381092 2442032 2466131 2613184 2706512 2721248 3231482 3598784 3988544 4273556 4736396 4762184 4884064 4932262 5413024 5442496 6462964 8547112 9472792 9524368 9768128 9864524 10826048 11310187 12925928 17094224 17262917 18945584 19048736 19729048 22620374 25851856 34188448 34525834 37891168 38097472 39458096 45240748 46856489 51703712 68376896 69051668 75782336 78916192 90481496 93712978 103407424 138103336 157832384 180962992 187425956 276206672 327995423 361925984 374851912 552413344 655990846 723851968 749703824 1104826688 1311981692 1499407648 2623963384 2998815296 5247926768 10495853536 20991707072
• Sum of all divisors σ(n): 52196390400
• Sum of proper divisors (its aliquot sum) s(n): 31204683328
• 20991707072 is an abundant number, because the sum of its proper divisors (31204683328) is greater than itself. Its abundance is 10212976256

Bases of 20991707072

• Binary: 10011100011001101000000011111000000₂
• Hexadecimal: 0x4E33407C0
• Base-36: 9N5X4U8

Squares and roots of 20991707072

• 20991707072 squared (20991707072²) is 440651765796654813184
• 20991707072 cubed (20991707072³) is 9250032788362926555857411637248
• The square root of 20991707072 is 144885.1513164823
• The cube root of 20991707072 is 2758.5609609535

Scales and comparisons

• 20,991,707,072 seconds is equal to 667 years, 24 weeks, 3 days, 13 hours, 44 minutes, 32 seconds.
• To count from 1 to 20,991,707,072 would take you about one thousand, three hundred 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 20991707072 cubic inches would be around 229.9 feet tall.

Recreational maths with 20991707072

• 20991707072 backwards is 27070719902
• The number of decimal digits it has is: 11
• The sum of 20991707072's digits is 44
• More coming soon!