21054218351920

Names of 21054218351920

• Cardinal: 21054218351920 can be written as Twenty-one trillion, fifty-four billion, two hundred eighteen million, three hundred fifty-one thousand, nine hundred twenty.

Scientific notation

• Scientific notation: 2.105421835192 × 10¹³

Factors of 21054218351920

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 2280

Divisors of 21054218351920

• Number of divisors d(n): 180
• Complete list of divisors:
  1 2 4 5 8 10 13 16 20 26 40 52 65 80 104 130 169 208 260 338 520 676 845 1031 1040 1229 1352 1690 2062 2458 2704 3380 4124 4916 5155 6145 6760 8248 9832 10310 12290 13403 13520 15977 16496 19664 20620 24580 26806 31954 41240 49160 53612 63908 67015 79885 82480 98320 107224 127816 134030 159770 174239 207701 214448 255632 268060 319540 348478 415402 536120 639080 696956 830804 871195 1038505 1072240 1267099 1278160 1393912 1510441 1661608 1742390 2077010 2534198 2787824 3020882 3323216 3484780 4154020 5068396 6041764 6335495 6969560 7552205 8308040 10136792 12083528 12670990 13939120 15104410 16472287 16616080 19635733 20273584 24167056 25341980 30208820 32944574 39271466 50683960 60417640 65889148 78542932 82361435 98178665 101367920 120835280 131778296 157085864 164722870 196357330 214139731 255264529 263556592 314171728 329445740 392714660 428279462 510529058 658891480 785429320 856558924 1021058116 1070698655 1276322645 1317782960 1557264671 1570858640 1713117848 2042116232 2141397310 2552645290 3114529342 3426235696 4084232464 4282794620 5105290580 6229058684 7786323355 8565589240 10210581160 12458117368 15572646710 17131178480 20244440723 20421162320 24916234736 31145293420 40488881446 62290586840 80977762892 101222203615 124581173680 161955525784 202444407230 263177729399 323911051568 404888814460 526355458798 809777628920 1052710917596 1315888646995 1619555257840 2105421835192 2631777293990 4210843670384 5263554587980 10527109175960 21054218351920
• Sum of all divisors σ(n): 53100793737936
• Sum of proper divisors (its aliquot sum) s(n): 32046575386016
• 21054218351920 is an abundant number, because the sum of its proper divisors (32046575386016) is greater than itself. Its abundance is 10992357034096

Bases of 21054218351920

• Binary: 100110010011000010001001101001011010100110000₂
• Hexadecimal: 0x13261134B530
• Base-36: 7GO6A03SG

Squares and roots of 21054218351920

• 21054218351920 squared (21054218351920²) is 443280110410324920967686400
• 21054218351920 cubed (21054218351920³) is 9332916235642186792487986608183397888000
• The square root of 21054218351920 is 4588487.5887289921
• The cube root of 21054218351920 is 27612.9649023303

Scales and comparisons

• 21,054,218,351,920 seconds is equal to 669,459 years, 6 days, 18 hours, 38 minutes, 40 seconds.
• To count from 1 to 21,054,218,351,920 would take you about one million, six hundred seventy-three thousand, six hundred forty-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 21054218351920 cubic inches would be around 2301.1 feet tall.

Recreational maths with 21054218351920

• 21054218351920 backwards is 02915381245012
• The number of decimal digits it has is: 14
• The sum of 21054218351920's digits is 43
• More coming soon!