21028377832

Names of 21028377832

• Cardinal: 21028377832 can be written as Twenty-one billion, twenty-eight million, three hundred seventy-seven thousand, eight hundred thirty-two.

Scientific notation

• Scientific notation: 2.1028377832 × 10¹⁰

Factors of 21028377832

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 1067

Divisors of 21028377832

• Number of divisors d(n): 256
• Complete list of divisors:
  1 2 4 7 8 11 14 19 22 28 37 38 44 49 56 74 76 77 88 98 133 148 152 154 196 209 259 266 296 308 343 392 407 418 518 532 539 616 686 703 814 836 931 991 1036 1064 1078 1372 1406 1463 1628 1672 1813 1862 1982 2072 2156 2744 2812 2849 2926 3256 3626 3724 3773 3964 4312 4921 5624 5698 5852 6517 6937 7252 7448 7546 7733 7928 9842 10241 10901 11396 11704 12691 13034 13874 14504 15092 15466 18829 19684 19943 20482 21802 22792 25382 26068 27748 30184 30932 34447 36667 37658 39368 39886 40964 43604 48559 50764 52136 54131 55496 61864 68894 71687 73334 75316 76307 79772 81928 87208 97118 101528 108262 131803 137788 139601 143374 146668 150632 152614 159544 194236 207119 216524 241129 256669 263606 275576 279202 286748 293336 305228 339913 378917 388472 403337 414238 433048 482258 513338 527212 534149 558404 573496 610456 679826 696673 757834 806674 828476 922621 964516 1026676 1054424 1068298 1116808 1359652 1393346 1449833 1515668 1613348 1656952 1796683 1845242 1929032 2053352 2136596 2652419 2719304 2786692 2823359 2899666 3031336 3226696 3593366 3690484 3739043 4273192 4876711 5304838 5573384 5646718 5799332 6458347 7186732 7380968 7478086 7663403 9753422 10148831 10609676 11293436 11598664 12576781 12916694 14373464 14956172 15326806 19506844 19763513 20297662 21219352 22586872 25153562 25833388 29912344 30653612 34136977 39013688 39527026 40595324 50307124 51666776 53643821 61307224 68273954 71041817 79054052 81190648 100614248 107287642 136547908 138344591 142083634 158108104 214575284 238958839 273095816 276689182 284167268 375506747 429150568 477917678 553378364 568334536 751013494 955835356 1106756728 1502026988 1911670712 2628547229 3004053976 5257094458 10514188916 21028377832
• Sum of all divisors σ(n): 54282240000
• Sum of proper divisors (its aliquot sum) s(n): 33253862168
• 21028377832 is an abundant number, because the sum of its proper divisors (33253862168) is greater than itself. Its abundance is 12225484336

Bases of 21028377832

• Binary: 10011100101011000111001010011101000₂
• Hexadecimal: 0x4E56394E8
• Base-36: 9NRR46G

Squares and roots of 21028377832

• 21028377832 squared (21028377832²) is 442192674245349020224
• 21028377832 cubed (21028377832³) is 9298594628573694665981281274368
• The square root of 21028377832 is 145011.6472287657
• The cube root of 21028377832 is 2760.1663517323

Scales and comparisons

• 21,028,377,832 seconds is equal to 668 years, 33 weeks, 1 day, 3 minutes, 52 seconds.
• To count from 1 to 21,028,377,832 would take you about one thousand, three hundred thirty-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 21028377832 cubic inches would be around 230 feet tall.

Recreational maths with 21028377832

• 21028377832 backwards is 23877382012
• The number of decimal digits it has is: 11
• The sum of 21028377832's digits is 43
• More coming soon!