21589659728

Names of 21589659728

• Cardinal: 21589659728 can be written as Twenty-one billion, five hundred eighty-nine million, six hundred fifty-nine thousand, seven hundred twenty-eight.

Scientific notation

• Scientific notation: 2.1589659728 × 10¹⁰

Factors of 21589659728

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 360

Divisors of 21589659728

• Number of divisors d(n): 320
• Complete list of divisors:
  1 2 4 7 8 13 14 16 17 26 28 34 52 56 61 68 79 91 104 112 119 122 136 158 181 182 208 221 238 244 272 316 362 364 427 442 476 488 553 632 724 728 793 854 884 952 976 1027 1037 1106 1264 1267 1343 1448 1456 1547 1586 1708 1768 1904 2054 2074 2212 2353 2534 2686 2896 3077 3094 3172 3416 3536 4108 4148 4424 4706 4819 5068 5372 5551 6154 6188 6344 6832 7189 7259 8216 8296 8848 9401 9412 9638 10136 10744 11041 11102 12308 12376 12688 13481 14299 14378 14518 16432 16471 16592 17459 18802 18824 19276 20272 21488 21539 22082 22204 24616 24752 26962 28598 28756 29036 32942 33733 34918 37604 37648 38552 40001 43078 44164 44408 49232 53924 57196 57512 58072 62647 65884 67466 69836 75208 77104 77287 80002 81923 86156 88328 88816 94367 100093 107848 114392 115024 116144 122213 125294 131768 134932 139672 143533 150416 154574 160004 163846 172312 176656 185887 187697 188734 200186 215696 228784 243083 244426 250588 263536 269864 279344 280007 287066 309148 320008 327692 344624 371774 375394 377468 400372 438529 486166 488852 501176 539728 560014 573461 574132 618296 640016 655384 743548 750788 754936 800744 872239 877058 972332 977704 1002352 1004731 1064999 1120028 1146922 1148264 1236592 1301209 1310768 1313879 1487096 1501576 1509872 1601488 1701581 1744478 1754116 1944664 1955408 2009462 2129998 2240056 2293844 2296528 2440061 2602418 2627758 2974192 3003152 3160079 3403162 3488956 3508232 3889328 4018924 4259996 4480112 4587688 4880122 5204836 5255516 6105673 6320158 6806324 6977912 7016464 7454993 8037848 8519992 9175376 9760244 10409672 10511032 11339107 12211346 12640316 13612648 13955824 14828063 14909986 16075696 17039984 17080427 19520488 20819344 21022064 22120553 22678214 24422692 25280632 27225296 29656126 29819972 34160854 39040976 44241106 45356428 48845384 50561264 59312252 59639944 68321708 79373749 88482212 90712856 97690768 103796441 118624504 119279888 136643416 158747498 176964424 181425712 192764819 207592882 237249008 273286832 317494996 353928848 385529638 415185764 634989992 771059276 830371528 1269979984 1349353733 1542118552 1660743056 2698707466 3084237104 5397414932 10794829864 21589659728
• Sum of all divisors σ(n): 56416389120
• Sum of proper divisors (its aliquot sum) s(n): 34826729392
• 21589659728 is an abundant number, because the sum of its proper divisors (34826729392) is greater than itself. Its abundance is 13237069664

Bases of 21589659728

• Binary: 10100000110110110000001000001010000₂
• Hexadecimal: 0x506D81050
• Base-36: 9X1XC28

Squares and roots of 21589659728

• 21589659728 squared (21589659728²) is 466113407170825033984
• 21589659728 cubed (21589659728³) is 10063229855476827652738596196352
• The square root of 21589659728 is 146934.2020361495
• The cube root of 21589659728 is 2784.5088283917

Scales and comparisons

• 21,589,659,728 seconds is equal to 686 years, 25 weeks, 1 day, 7 hours, 42 minutes, 8 seconds.
• To count from 1 to 21,589,659,728 would take you about one thousand, three hundred seventy-two 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 21589659728 cubic inches would be around 232 feet tall.

Recreational maths with 21589659728

• 21589659728 backwards is 82795698512
• The number of decimal digits it has is: 11
• The sum of 21589659728's digits is 62
• More coming soon!