21398961024

Names of 21398961024

• Cardinal: 21398961024 can be written as Twenty-one billion, three hundred ninety-eight million, nine hundred sixty-one thousand and twenty-four.

Scientific notation

• Scientific notation: 2.1398961024 × 10¹⁰

Factors of 21398961024

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 16
• Sum of prime factors: 193

Divisors of 21398961024

• Number of divisors d(n): 336
• Complete list of divisors:
  1 2 3 4 6 7 8 9 12 14 16 18 21 24 27 28 32 36 42 48 54 56 63 64 72 81 84 96 108 112 126 128 144 162 168 181 189 192 216 224 243 252 288 324 336 362 378 384 432 448 486 504 543 567 576 648 672 724 729 756 864 896 972 1008 1086 1134 1152 1267 1296 1344 1448 1458 1512 1629 1701 1728 1944 2016 2172 2268 2534 2592 2688 2896 2916 3024 3258 3402 3456 3801 3888 4032 4344 4536 4887 5068 5103 5184 5792 5832 6048 6516 6804 7602 7776 8064 8688 9072 9774 10136 10206 10368 11403 11584 11664 12096 13032 13608 14661 15204 15552 17376 18144 19548 20272 20412 22806 23168 23328 24192 26064 27216 29322 30408 31104 32761 34209 34752 36288 39096 40544 40824 43983 45612 46656 52128 54432 58644 60816 65522 68418 69504 72576 78192 81088 81648 87966 91224 93312 98283 102627 104256 108864 117288 121632 131044 131949 136836 156384 162176 163296 175932 182448 196566 205254 208512 217728 229327 234576 243264 262088 263898 273672 294849 307881 312768 326592 351864 364896 393132 410508 458654 469152 486528 524176 527796 547344 589698 615762 625536 653184 687981 703728 729792 786264 821016 884547 917308 923643 938304 1048352 1055592 1094688 1179396 1231524 1375962 1407456 1459584 1572528 1642032 1769094 1834616 1847286 1876608 2063943 2096704 2111184 2189376 2358792 2463048 2653641 2751924 2814912 3145056 3284064 3538188 3669232 3694572 4127886 4193408 4222368 4378752 4717584 4926096 5307282 5503848 5629824 6191829 6290112 6568128 7076376 7338464 7389144 7960923 8255772 8444736 9435168 9852192 10614564 11007696 12383658 12580224 13136256 14152752 14676928 14778288 15921846 16511544 16889472 18575487 18870336 19704384 21229128 22015392 23882769 24767316 28305504 29353856 29556576 31843692 33023088 37150974 37740672 39408768 42458256 44030784 47765538 49534632 55726461 56611008 59113152 63687384 66046176 74301948 84916512 88061568 95531076 99069264 111452922 113222016 118226304 127374768 132092352 148603896 167179383 169833024 191062152 198138528 222905844 254749536 264184704 297207792 334358766 339666048 382124304 396277056 445811688 509499072 594415584 668717532 764248608 792554112 891623376 1018998144 1188831168 1337435064 1528497216 1783246752 2377662336 2674870128 3056994432 3566493504 5349740256 7132987008 10699480512 21398961024
• Sum of all divisors σ(n): 73453665960
• Sum of proper divisors (its aliquot sum) s(n): 52054704936
• 21398961024 is an abundant number, because the sum of its proper divisors (52054704936) is greater than itself. Its abundance is 30655743912

Bases of 21398961024

• Binary: 10011111011011110100011101110000000₂
• Hexadecimal: 0x4FB7A3B80
• Base-36: 9TWE000

Squares and roots of 21398961024

• 21398961024 squared (21398961024²) is 457915532906671128576
• 21398961024 cubed (21398961024³) is 9798916640954044909983916621824
• The square root of 21398961024 is 146283.8371933141
• The cube root of 21398961024 is 2776.2861672673

Scales and comparisons

• 21,398,961,024 seconds is equal to 680 years, 21 weeks, 6 days, 3 hours, 50 minutes, 24 seconds.
• To count from 1 to 21,398,961,024 would take you about one thousand, three hundred sixty 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 21398961024 cubic inches would be around 231.4 feet tall.

Recreational maths with 21398961024

• 21398961024 backwards is 42016989312
• The number of decimal digits it has is: 11
• The sum of 21398961024's digits is 45
• More coming soon!