21439807995648

Names of 21439807995648

• Cardinal: 21439807995648 can be written as Twenty-one trillion, four hundred thirty-nine billion, eight hundred seven million, nine hundred ninety-five thousand, six hundred forty-eight.

Scientific notation

• Scientific notation: 2.1439807995648 × 10¹³

Factors of 21439807995648

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 14
• Sum of prime factors: 841

Divisors of 21439807995648

• Number of divisors d(n): 216
• Complete list of divisors:
  1 2 3 4 6 7 8 12 14 16 21 24 28 32 42 48 49 56 64 84 96 98 112 128 147 168 192 196 224 256 294 336 384 392 448 588 672 768 784 829 896 1176 1344 1568 1658 1792 2352 2487 2688 3136 3316 4704 4974 5376 5803 6272 6632 9408 9948 11606 12544 13264 17409 18816 19896 23212 26528 34818 37632 39792 40621 46424 53056 69636 79584 81242 92848 106112 121863 139272 159168 162484 185696 212224 243726 278544 318336 324968 371392 487452 557088 636672 649936 687241 742784 974904 1114176 1299872 1374482 1485568 1949808 2061723 2228352 2599744 2748964 3899616 4123446 4456704 4810687 5199488 5497928 7799232 8246892 9621374 10398976 10995856 14432061 15598464 16493784 19242748 21991712 28864122 31196928 32987568 33674809 38485496 43983424 57728244 65975136 67349618 76970992 87966848 101024427 115456488 131950272 134699236 153941984 175933696 202048854 230912976 263900544 269398472 307883968 404097708 461825952 527801088 538796944 569722789 615767936 808195416 923651904 1077593888 1139445578 1231535872 1616390832 1709168367 1847303808 2155187776 2278891156 3232781664 3418336734 3694607616 3988059523 4310375552 4557782312 6465563328 6836673468 7976119046 8620751104 9115564624 11964178569 12931126656 13673346936 15952238092 18231129248 23928357138 25862253312 27346693872 27916416661 31904476184 36462258496 47856714276 54693387744 55832833322 63808952368 72924516992 83749249983 95713428552 109386775488 111665666644 127617904736 145849033984 167498499966 191426857104 218773550976 223331333288 255235809472 334996999932 382853714208 437547101952 446662666576 510471618944 669993999864 765707428416 893325333152 1020943237888 1339987999728 1531414856832 1786650666304 2679975999456 3062829713664 3573301332608 5359951998912 7146602665216 10719903997824 21439807995648
• Sum of all divisors σ(n): 66457428476880
• Sum of proper divisors (its aliquot sum) s(n): 45017620481232
• 21439807995648 is an abundant number, because the sum of its proper divisors (45017620481232) is greater than itself. Its abundance is 23577812485584

Bases of 21439807995648

• Binary: 100110111111111011000001000111011111100000000₂
• Hexadecimal: 0x137FD823BF00
• Base-36: 7LLB84D1C

Squares and roots of 21439807995648

• 21439807995648 squared (21439807995648²) is 459665366890251911186939904
• 21439807995648 cubed (21439807995648³) is 9855137208376094370774667331812869537792
• The square root of 21439807995648 is 4630314.0277575127
• The cube root of 21439807995648 is 27780.5153028439

Scales and comparisons

• 21,439,807,995,648 seconds is equal to 681,719 years, 29 weeks, 6 days, 21 hours, 48 seconds.
• To count from 1 to 21,439,807,995,648 would take you about one million, seven hundred four thousand, two hundred ninety-eight 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 21439807995648 cubic inches would be around 2315 feet tall.

Recreational maths with 21439807995648

• 21439807995648 backwards is 84659970893412
• The number of decimal digits it has is: 14
• The sum of 21439807995648's digits is 75
• More coming soon!