21661824492

Names of 21661824492

• Cardinal: 21661824492 can be written as Twenty-one billion, six hundred sixty-one million, eight hundred twenty-four thousand, four hundred ninety-two.

Scientific notation

• Scientific notation: 2.1661824492 × 10¹⁰

Factors of 21661824492

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 848

Divisors of 21661824492

• Number of divisors d(n): 480
• Complete list of divisors:
  1 2 3 4 6 7 9 11 12 14 18 21 22 27 28 31 33 36 37 42 44 54 62 63 66 74 77 81 84 93 99 108 111 124 126 132 148 154 162 186 189 198 217 222 231 252 259 279 297 308 324 333 341 372 378 396 407 434 444 462 518 558 567 594 651 666 682 693 756 757 777 814 837 868 891 924 999 1023 1036 1116 1134 1147 1188 1221 1302 1332 1364 1386 1514 1554 1628 1674 1782 1953 1998 2046 2079 2268 2271 2294 2331 2387 2442 2511 2604 2772 2849 2997 3028 3069 3108 3348 3441 3564 3663 3906 3996 4092 4158 4542 4588 4662 4774 4884 5022 5299 5698 5859 5994 6138 6237 6813 6882 6993 7161 7326 7812 8029 8316 8327 8547 9084 9207 9324 9548 10044 10323 10598 10989 11396 11718 11988 12276 12474 12617 13626 13764 13986 14322 14652 15897 16058 16654 17094 17577 18414 20439 20646 20979 21196 21483 21978 23436 23467 24087 24948 24981 25234 25641 27252 27621 27972 28009 28644 30969 31794 32116 32967 33308 34188 35154 36828 37851 40878 41292 41958 42966 43956 46934 47691 48174 49962 50468 51282 55242 56018 58289 61317 61938 63588 64449 65934 70308 70401 72261 74943 75702 76923 81756 83916 84027 85932 88319 92907 93868 95382 96348 99924 102564 110484 112036 113553 116578 122634 123876 128898 131868 140802 143073 144522 149886 151404 153846 164269 168054 174867 176638 185814 190764 193347 196063 211203 216783 224829 227106 230769 233156 245268 252081 257796 258137 264957 281604 286146 289044 299772 307692 308099 328538 336108 340659 349734 353276 371628 386694 392126 422406 429219 433566 449658 454212 461538 492807 504162 516274 524601 529914 572292 588189 616198 633609 650349 657076 674487 681318 699468 756243 773388 774411 784252 794871 844812 858438 867132 868279 899316 923076 924297 985614 1008324 1021977 1032548 1049202 1059828 1176378 1232396 1267218 1300698 1348974 1362636 1478421 1512486 1548822 1573803 1589742 1716876 1736558 1764567 1806959 1848594 1900827 1971228 2043954 2098404 2156693 2268729 2323233 2352756 2384613 2534436 2601396 2604837 2697948 2772891 2956842 3024972 3097644 3147606 3179484 3473116 3529134 3613918 3697188 3801654 4087908 4313386 4435263 4537458 4646466 4721409 4769226 5209674 5293701 5420877 5545782 5913684 6077953 6295212 6470079 6969699 7058268 7153839 7227836 7603308 7814511 8318673 8626772 8870526 9074916 9292932 9442818 9538452 9551069 10419348 10587402 10841754 11091564 12155906 12940158 13305789 13939398 14307678 15629022 15881103 16262631 16637346 17741052 18233859 18885636 19102138 19410237 20909097 21174804 21683508 23443533 24311812 24956019 25880316 26611578 27878796 28615356 28653207 31258044 31762206 32525262 33274692 36467718 38204276 38820474 41818194 46887066 48787893 49912038 53223156 54701577 57306414 58230711 63524412 65050524 66857483 70330599 72935436 77640948 83636388 85959621 93774132 97575786 99824076 109403154 114612828 116461422 133714966 140661198 146363679 164104731 171919242 174692133 195151572 200572449 218806308 232922844 257878863 267429932 281322396 292727358 328209462 343838484 349384266 401144898 492314193 515757726 585454716 601717347 656418924 698768532 773636589 802289796 984628386 1031515452 1203434694 1547273178 1805152041 1969256772 2406869388 3094546356 3610304082 5415456123 7220608164 10830912246 21661824492
• Sum of all divisors σ(n): 74947547136
• Sum of proper divisors (its aliquot sum) s(n): 53285722644
• 21661824492 is an abundant number, because the sum of its proper divisors (53285722644) is greater than itself. Its abundance is 31623898152

Bases of 21661824492

• Binary: 10100001011001001010011010111101100₂
• Hexadecimal: 0x50B2535EC
• Base-36: 9Y8W2R0

Squares and roots of 21661824492

• 21661824492 squared (21661824492²) is 469234640322211058064
• 21661824492 cubed (21661824492³) is 10164478424226482269163989303488
• The square root of 21661824492 is 147179.5654702105
• The cube root of 21661824492 is 2787.6078420127

Scales and comparisons

• 21,661,824,492 seconds is equal to 688 years, 40 weeks, 3 days, 13 hours, 28 minutes, 12 seconds.
• To count from 1 to 21,661,824,492 would take you about one thousand, three hundred seventy-seven 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 21661824492 cubic inches would be around 232.3 feet tall.

Recreational maths with 21661824492

• 21661824492 backwards is 29442816612
• The number of decimal digits it has is: 11
• The sum of 21661824492's digits is 45
• More coming soon!