21290428426680

Names of 21290428426680

• Cardinal: 21290428426680 can be written as Twenty-one trillion, two hundred ninety billion, four hundred twenty-eight million, four hundred twenty-six thousand, six hundred eighty.

Scientific notation

• Scientific notation: 2.129042842668 × 10¹³

Factors of 21290428426680

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 52475709

Divisors of 21290428426680

• Number of divisors d(n): 288
• Complete list of divisors:
  1 2 3 4 5 6 7 8 9 10 12 14 15 18 20 21 23 24 28 30 35 36 40 42 45 46 49 56 60 63 69 70 72 84 90 92 98 105 115 120 126 138 140 147 161 168 180 184 196 207 210 230 245 252 276 280 294 315 322 345 360 392 414 420 441 460 483 490 504 552 588 630 644 690 735 805 828 840 882 920 966 980 1035 1127 1176 1260 1288 1380 1449 1470 1610 1656 1764 1932 1960 2070 2205 2254 2415 2520 2760 2898 2940 3220 3381 3528 3864 4140 4410 4508 4830 5635 5796 5880 6440 6762 7245 8280 8820 9016 9660 10143 11270 11592 13524 14490 16905 17640 19320 20286 22540 27048 28980 33810 40572 45080 50715 57960 67620 81144 101430 135240 202860 405720 52475669 104951338 157427007 209902676 262378345 314854014 367329683 419805352 472281021 524756690 629708028 734659366 787135035 944562042 1049513380 1101989049 1206940387 1259416056 1469318732 1574270070 1836648415 1889124084 2099026760 2203978098 2361405105 2413880774 2571307781 2938637464 3148540140 3305967147 3620821161 3673296830 3778248168 4407956196 4722810210 4827761548 5142615562 5509945245 6034701935 6297080280 6611934294 7241642322 7346593660 7713923343 8448582709 8815912392 9445620420 9655523096 10285231124 10862463483 11019890490 12069403870 12856538905 13223868588 14483284644 14693187320 15427846686 16529835735 16897165418 18104105805 18891240840 20570462248 21724926966 22039780980 23141770029 24138807740 25345748127 25713077810 26447737176 28966569288 30855693372 33059671470 33794330836 36208211610 38569616715 42242913545 43449853932 44079561960 46283540058 48277615480 50691496254 51426155620 54312317415 59140078963 61711386744 66119342940 67588661672 72416423220 76037244381 77139233430 84485827090 86899707864 92567080116 101382992508 102852311240 108624634830 115708850145 118280157926 126728740635 132238685880 144832846440 152074488762 154278466860 168971654180 177420236889 185134160232 202765985016 217249269660 231417700290 236560315852 253457481270 295700394815 304148977524 308556933720 337943308360 354840473778 380186221905 434498539320 462835400580 473120631704 506914962540 532260710667 591400789630 608297955048 709680947556 760372443810 887101184445 925670801160 1013829925080 1064521421334 1182801579260 1419361895112 1520744887620 1774202368890 2129042842668 2365603158520 2661303553335 3041489775240 3548404737780 4258085685336 5322607106670 7096809475560 10645214213340 21290428426680
• Sum of all divisors σ(n): 83990458375200
• Sum of proper divisors (its aliquot sum) s(n): 62700029948520
• 21290428426680 is an abundant number, because the sum of its proper divisors (62700029948520) is greater than itself. Its abundance is 41409601521840

Bases of 21290428426680

• Binary: 100110101110100010000011011000110100110111000₂
• Hexadecimal: 0x135D106C69B8
• Base-36: 7JOORDRY0

Squares and roots of 21290428426680

• 21290428426680 squared (21290428426680²) is 453282342591583820135822400
• 21290428426680 cubed (21290428426680³) is 9650575272023958665543661403539901632000
• The square root of 21290428426680 is 4614155.2235138341
• The cube root of 21290428426680 is 27715.8456201471

Scales and comparisons

• 21,290,428,426,680 seconds is equal to 676,969 years, 39 weeks, 6 days, 16 hours, 18 minutes.
• To count from 1 to 21,290,428,426,680 would take you about one million, six hundred ninety-two thousand, four hundred twenty-four 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 21290428426680 cubic inches would be around 2309.7 feet tall.

Recreational maths with 21290428426680

• 21290428426680 backwards is 08662482409212
• The number of decimal digits it has is: 14
• The sum of 21290428426680's digits is 54
• More coming soon!