20918940480

Names of 20918940480

• Cardinal: 20918940480 can be written as Twenty billion, nine hundred eighteen million, nine hundred forty thousand, four hundred eighty.

Scientific notation

• Scientific notation: 2.091894048 × 10¹⁰

Factors of 20918940480

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 154600

Divisors of 20918940480

• Number of divisors d(n): 168
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 30 32 36 40 45 47 48 60 64 72 80 90 94 96 120 141 144 160 180 188 192 235 240 282 288 320 360 376 423 470 480 564 576 705 720 752 846 940 960 1128 1410 1440 1504 1692 1880 2115 2256 2820 2880 3008 3384 3760 4230 4512 5640 6768 7520 8460 9024 11280 13536 15040 16920 22560 27072 33840 45120 67680 135360 154543 309086 463629 618172 772715 927258 1236344 1390887 1545430 1854516 2318145 2472688 2781774 3090860 3709032 4636290 4945376 5563548 6181720 6954435 7263521 7418064 9272580 9890752 11127096 12363440 13908870 14527042 14836128 18545160 21790563 22254192 24726880 27817740 29054084 29672256 36317605 37090320 43581126 44508384 49453760 55635480 58108168 65371689 72635210 74180640 87162252 89016768 108952815 111270960 116216336 130743378 145270420 148361280 174324504 217905630 222541920 232432672 261486756 290540840 326858445 348649008 435811260 445083840 464865344 522973512 581081680 653716890 697298016 871622520 1045947024 1162163360 1307433780 1394596032 1743245040 2091894048 2324326720 2614867560 3486490080 4183788096 5229735120 6972980160 10459470240 20918940480
• Sum of all divisors σ(n): 73483817472
• Sum of proper divisors (its aliquot sum) s(n): 52564876992
• 20918940480 is an abundant number, because the sum of its proper divisors (52564876992) is greater than itself. Its abundance is 31645936512

Bases of 20918940480

• Binary: 10011011110110111011011001101000000₂
• Hexadecimal: 0x4DEDDB340
• Base-36: 9LYLHS0

Squares and roots of 20918940480

• 20918940480 squared (20918940480²) is 437602070805782630400
• 20918940480 cubed (20918940480³) is 9154171673110912485155438592000
• The square root of 20918940480 is 144633.8151332529
• The cube root of 20918940480 is 2755.3698044327

Scales and comparisons

• 20,918,940,480 seconds is equal to 665 years, 8 weeks, 1 day, 8 hours, 48 minutes.
• To count from 1 to 20,918,940,480 would take you about one thousand, three hundred thirty 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 20918940480 cubic inches would be around 229.6 feet tall.

Recreational maths with 20918940480

• 20918940480 backwards is 08404981902
• 20918940480 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 20918940480's digits is 45
• More coming soon!