21163794432

Names of 21163794432

• Cardinal: 21163794432 can be written as Twenty-one billion, one hundred sixty-three million, seven hundred ninety-four thousand, four hundred thirty-two.

Scientific notation

• Scientific notation: 2.1163794432 × 10¹⁰

Factors of 21163794432

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 18
• Sum of prime factors: 663

Divisors of 21163794432

• Number of divisors d(n): 224
• Complete list of divisors:
  1 2 3 4 6 8 11 12 16 22 24 32 33 44 48 64 66 88 96 121 128 132 176 192 242 256 264 352 363 384 484 512 528 647 704 726 768 968 1024 1056 1294 1331 1408 1452 1536 1936 1941 2048 2112 2588 2662 2816 2904 3072 3872 3882 3993 4096 4224 5176 5324 5632 5808 6144 7117 7744 7764 7986 8192 8448 10352 10648 11264 11616 12288 14234 15488 15528 15972 16896 20704 21296 21351 22528 23232 24576 28468 30976 31056 31944 33792 41408 42592 42702 45056 46464 56936 61952 62112 63888 67584 78287 82816 85184 85404 90112 92928 113872 123904 124224 127776 135168 156574 165632 170368 170808 185856 227744 234861 247808 248448 255552 270336 313148 331264 340736 341616 371712 455488 469722 495616 496896 511104 626296 662528 681472 683232 743424 861157 910976 939444 991232 993792 1022208 1252592 1325056 1362944 1366464 1486848 1722314 1821952 1878888 1987584 2044416 2505184 2583471 2650112 2725888 2732928 2973696 3444628 3643904 3757776 3975168 4088832 5010368 5166942 5300224 5451776 5465856 6889256 7287808 7515552 7950336 8177664 10020736 10333884 10903552 10931712 13778512 14575616 15031104 15900672 16355328 20041472 20667768 21863424 27557024 29151232 30062208 32710656 40082944 41335536 43726848 55114048 58302464 60124416 80165888 82671072 87453696 110228096 120248832 160331776 165342144 174907392 220456192 240497664 320663552 330684288 440912384 480995328 641327104 661368576 881824768 961990656 1322737152 1763649536 1923981312 2645474304 3527299072 5290948608 7054598144 10581897216 21163794432
• Sum of all divisors σ(n): 62168373504
• Sum of proper divisors (its aliquot sum) s(n): 41004579072
• 21163794432 is an abundant number, because the sum of its proper divisors (41004579072) is greater than itself. Its abundance is 19840784640

Bases of 21163794432

• Binary: 10011101101011101011110000000000000₂
• Hexadecimal: 0x4ED75E000
• Base-36: 9Q0DKAO

Squares and roots of 21163794432

• 21163794432 squared (21163794432²) is 447906194759954202624
• 21163794432 cubed (21163794432³) is 9479394630719026330068810989568
• The square root of 21163794432 is 145477.8142260875
• The cube root of 21163794432 is 2766.0785667359

Scales and comparisons

• 21,163,794,432 seconds is equal to 672 years, 49 weeks, 7 hours, 47 minutes, 12 seconds.
• To count from 1 to 21,163,794,432 would take you about one thousand, three hundred forty-five 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 21163794432 cubic inches would be around 230.5 feet tall.

Recreational maths with 21163794432

• 21163794432 backwards is 23449736112
• The number of decimal digits it has is: 11
• The sum of 21163794432's digits is 42
• More coming soon!