21678472512

Names of 21678472512

• Cardinal: 21678472512 can be written as Twenty-one billion, six hundred seventy-eight million, four hundred seventy-two thousand, five hundred twelve.

Scientific notation

• Scientific notation: 2.1678472512 × 10¹⁰

Factors of 21678472512

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 19624

Divisors of 21678472512

• Number of divisors d(n): 168
• Complete list of divisors:
  1 2 3 4 6 8 9 12 16 18 24 32 36 41 47 48 64 72 82 94 96 123 141 144 164 188 192 246 282 288 328 369 376 423 492 564 576 656 738 752 846 984 1128 1312 1476 1504 1692 1927 1968 2256 2624 2952 3008 3384 3854 3936 4512 5781 5904 6768 7708 7872 9024 11562 11808 13536 15416 17343 19531 23124 23616 27072 30832 34686 39062 46248 58593 61664 69372 78124 92496 117186 123328 138744 156248 175779 184992 234372 277488 312496 351558 369984 468744 554976 624992 703116 800771 917957 937488 1109952 1249984 1406232 1601542 1835914 1874976 2402313 2753871 2812464 3203084 3671828 3749952 4804626 5507742 5624928 6406168 7206939 7343656 8261613 9609252 11015484 11249856 12812336 14413878 14687312 16523226 19218504 22030968 25624672 28827756 29374624 33046452 37636237 38437008 44061936 51249344 57655512 58749248 66092904 75272474 76874016 88123872 112908711 115311024 132185808 150544948 153748032 176247744 225817422 230622048 264371616 301089896 338726133 451634844 461244096 528743232 602179792 677452266 903269688 1204359584 1354904532 1806539376 2408719168 2709809064 3613078752 5419618128 7226157504 10839236256 21678472512
• Sum of all divisors σ(n): 65010621312
• Sum of proper divisors (its aliquot sum) s(n): 43332148800
• 21678472512 is an abundant number, because the sum of its proper divisors (43332148800) is greater than itself. Its abundance is 21653676288

Bases of 21678472512

• Binary: 10100001100001000110011110101000000₂
• Hexadecimal: 0x50C233D40
• Base-36: 9YISWG0

Squares and roots of 21678472512

• 21678472512 squared (21678472512²) is 469956170453539590144
• 21678472512 cubed (21678472512³) is 10187931923021844578040450121728
• The square root of 21678472512 is 147236.1114400947
• The cube root of 21678472512 is 2788.3217902973

Scales and comparisons

• 21,678,472,512 seconds is equal to 689 years, 16 weeks, 5 hours, 55 minutes, 12 seconds.
• To count from 1 to 21,678,472,512 would take you about one thousand, three hundred seventy-eight 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 21678472512 cubic inches would be around 232.4 feet tall.

Recreational maths with 21678472512

• 21678472512 backwards is 21527487612
• The number of decimal digits it has is: 11
• The sum of 21678472512's digits is 45
• More coming soon!