21084406488

Names of 21084406488

• Cardinal: 21084406488 can be written as Twenty-one billion, eighty-four million, four hundred six thousand, four hundred eighty-eight.

Scientific notation

• Scientific notation: 2.1084406488 × 10¹⁰

Factors of 21084406488

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 812

Divisors of 21084406488

• Number of divisors d(n): 192
• Complete list of divisors:
  1 2 3 4 6 8 9 12 18 24 27 36 37 54 61 72 74 108 111 122 148 183 216 222 244 296 333 366 444 488 549 666 709 732 888 999 1098 1332 1418 1464 1647 1998 2127 2196 2257 2664 2836 3294 3721 3996 4254 4392 4514 5672 6381 6588 6771 7442 7992 8508 9028 11163 12762 13176 13542 14884 17016 18056 19143 20313 22326 25524 26233 27084 29768 33489 38286 40626 43249 44652 51048 52466 54168 60939 66978 76572 78699 81252 86498 89304 100467 104932 121878 129747 133956 137677 153144 157398 162504 172996 200934 209864 236097 243756 259494 267912 275354 314796 345992 389241 401868 413031 472194 487512 518988 550708 629592 708291 778482 803736 826062 944388 1037976 1101416 1167723 1239093 1416582 1556964 1600213 1652124 1888776 2335446 2478186 2638189 2833164 3113928 3200426 3304248 3717279 4670892 4800639 4956372 5276378 5666328 6400852 7434558 7914567 9341784 9601278 9912744 10552756 12801704 14401917 14869116 15829134 19202556 21105512 23743701 28803834 29738232 31658268 38405112 43205751 47487402 57607668 63316536 71231103 86411502 94974804 97612993 115215336 142462206 172823004 189949608 195225986 284924412 292838979 345646008 390451972 569848824 585677958 780903944 878516937 1171355916 1757033874 2342711832 2635550811 3514067748 5271101622 7028135496 10542203244 21084406488
• Sum of all divisors σ(n): 61239204000
• Sum of proper divisors (its aliquot sum) s(n): 40154797512
• 21084406488 is an abundant number, because the sum of its proper divisors (40154797512) is greater than itself. Its abundance is 19070391024

Bases of 21084406488

• Binary: 10011101000101110101000001011011000₂
• Hexadecimal: 0x4E8BA82D8
• Base-36: 9OP4060

Squares and roots of 21084406488

• 21084406488 squared (21084406488²) is 444552196951216494144
• 21084406488 cubed (21084406488³) is 9373119225652882868622367606272
• The square root of 21084406488 is 145204.7054609457
• The cube root of 21084406488 is 2762.6156017443

Scales and comparisons

• 21,084,406,488 seconds is equal to 670 years, 21 weeks, 5 days, 11 hours, 34 minutes, 48 seconds.
• To count from 1 to 21,084,406,488 would take you about one thousand, three hundred forty 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 21084406488 cubic inches would be around 230.2 feet tall.

Recreational maths with 21084406488

• 21084406488 backwards is 88460448012
• The number of decimal digits it has is: 11
• The sum of 21084406488's digits is 45
• More coming soon!