21021682688

Names of 21021682688

• Cardinal: 21021682688 can be written as Twenty-one billion, twenty-one million, six hundred eighty-two thousand, six hundred eighty-eight.

Scientific notation

• Scientific notation: 2.1021682688 × 10¹⁰

Factors of 21021682688

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 15
• Sum of prime factors: 135

Divisors of 21021682688

• Number of divisors d(n): 176
• Complete list of divisors:
  1 2 4 8 16 19 32 38 41 64 73 76 82 128 146 152 164 256 292 304 328 361 512 584 608 656 722 779 1024 1168 1216 1312 1387 1444 1558 2336 2432 2624 2774 2888 2993 3116 4672 4864 5248 5548 5776 5986 6232 6859 9344 9728 10496 11096 11552 11972 12464 13718 14801 18688 19456 20992 22192 23104 23944 24928 26353 27436 29602 37376 41984 44384 46208 47888 49856 52706 54872 56867 59204 74752 88768 92416 95776 99712 105412 109744 113734 118408 177536 184832 191552 199424 210824 219488 227468 236816 281219 355072 369664 383104 398848 421648 438976 454936 473632 500707 562438 710144 766208 797696 843296 877952 909872 947264 1001414 1080473 1124876 1420288 1532416 1686592 1755904 1819744 1894528 2002828 2160946 2249752 3064832 3373184 3511808 3639488 3789056 4005656 4321892 4499504 6746368 7023616 7278976 7578112 8011312 8643784 8999008 13492736 14557952 15156224 16022624 17287568 17998016 20528987 26985472 29115904 32045248 34575136 35996032 41057974 58231808 64090496 69150272 71992064 82115948 128180992 138300544 143984128 164231896 256361984 276601088 287968256 328463792 512723968 553202176 656927584 1106404352 1313855168 2627710336 5255420672 10510841344 21021682688
• Sum of all divisors σ(n): 46061430240
• Sum of proper divisors (its aliquot sum) s(n): 25039747552
• 21021682688 is an abundant number, because the sum of its proper divisors (25039747552) is greater than itself. Its abundance is 4018064864

Bases of 21021682688

• Binary: 10011100100111111010110110000000000₂
• Hexadecimal: 0x4E4FD6C00
• Base-36: 9NNRM68

Squares and roots of 21021682688

• 21021682688 squared (21021682688²) is 441911143034958905344
• 21021682688 cubed (21021682688³) is 9289715825172287399261395484672
• The square root of 21021682688 is 144988.5605418579
• The cube root of 21021682688 is 2759.8733877367

Scales and comparisons

• 21,021,682,688 seconds is equal to 668 years, 22 weeks, 12 hours, 18 minutes, 8 seconds.
• To count from 1 to 21,021,682,688 would take you about one thousand, three hundred thirty-six 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 21021682688 cubic inches would be around 230 feet tall.

Recreational maths with 21021682688

• 21021682688 backwards is 88628612012
• The number of decimal digits it has is: 11
• The sum of 21021682688's digits is 44
• More coming soon!