21738884790

Names of 21738884790

• Cardinal: 21738884790 can be written as Twenty-one billion, seven hundred thirty-eight million, eight hundred eighty-four thousand, seven hundred ninety.

Scientific notation

• Scientific notation: 2.173888479 × 10¹⁰

Factors of 21738884790

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 980

Divisors of 21738884790

• Number of divisors d(n): 192
• Complete list of divisors:
  1 2 3 5 6 7 10 14 15 21 30 35 42 49 70 98 105 109 147 210 211 218 245 294 327 422 490 545 633 643 654 735 763 1055 1090 1266 1286 1470 1477 1526 1635 1929 2110 2289 2954 3165 3215 3270 3815 3858 4431 4501 4578 5341 6330 6430 7385 7630 8862 9002 9645 10339 10682 11445 13503 14770 16023 19290 20678 22155 22505 22890 22999 26705 27006 31017 31507 32046 44310 45010 45998 51695 53410 62034 63014 67515 68997 70087 80115 94521 103390 114995 135030 135673 137994 140174 155085 157535 160230 160993 189042 210261 229990 271346 310170 315070 321986 344985 350435 407019 420522 472605 482979 490609 678365 689970 700870 804965 814038 945210 949711 965958 981218 1051305 1126951 1356730 1471827 1609930 1899422 2035095 2102610 2253902 2414895 2453045 2849133 2943654 3380853 3434263 4070190 4748555 4829790 4906090 5634755 5698266 6647977 6761706 6868526 7359135 9497110 10302789 11269510 13295954 14245665 14718270 14788357 16904265 17171315 19943931 20605578 28491330 29576714 33239885 33808530 34342630 39887862 44365071 51513945 66479770 73941785 88730142 99719655 103027890 103518499 147883570 199439310 207036998 221825355 310555497 443650710 517592495 621110994 724629493 1035184990 1449258986 1552777485 2173888479 3105554970 3623147465 4347776958 7246294930 10869442395 21738884790
• Sum of all divisors σ(n): 61634200320
• Sum of proper divisors (its aliquot sum) s(n): 39895315530
• 21738884790 is an abundant number, because the sum of its proper divisors (39895315530) is greater than itself. Its abundance is 18156430740

Bases of 21738884790

• Binary: 10100001111101111010000111010110110₂
• Hexadecimal: 0x50FBD0EB6
• Base-36: 9ZIRQUU

Squares and roots of 21738884790

• 21738884790 squared (21738884790²) is 472579111912893344100
• 21738884790 cubed (21738884790³) is 10273342868034904922947726239000
• The square root of 21738884790 is 147441.1231305567
• The cube root of 21738884790 is 2790.9094978095

Scales and comparisons

• 21,738,884,790 seconds is equal to 691 years, 11 weeks, 6 days, 11 hours, 6 minutes, 30 seconds.
• To count from 1 to 21,738,884,790 would take you about one thousand, three hundred eighty-two 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 21738884790 cubic inches would be around 232.6 feet tall.

Recreational maths with 21738884790

• 21738884790 backwards is 09748883712
• The number of decimal digits it has is: 11
• The sum of 21738884790's digits is 57
• More coming soon!