21555971100400

Names of 21555971100400

• Cardinal: 21555971100400 can be written as Twenty-one trillion, five hundred fifty-five billion, nine hundred seventy-one million, one hundred thousand, four hundred.

Scientific notation

• Scientific notation: 2.15559711004 × 10¹³

Factors of 21555971100400

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 20591

Divisors of 21555971100400

• Number of divisors d(n): 360
• Complete list of divisors:
  1 2 4 5 8 10 11 16 20 22 23 25 40 44 46 50 55 80 88 92 100 110 115 176 184 200 220 230 253 275 368 400 440 460 461 506 529 550 575 880 920 922 1012 1058 1100 1150 1265 1840 1844 2024 2116 2200 2300 2305 2530 2645 3688 4048 4232 4400 4600 4610 5060 5071 5290 5819 6325 7376 8464 9200 9220 10120 10142 10580 10603 11525 11638 12650 13225 18440 20089 20240 20284 21160 21206 23050 23276 25300 25355 26450 29095 36880 40178 40568 42320 42412 46100 46552 50600 50710 52900 53015 58190 80356 81136 84824 92200 93104 100445 101200 101420 105800 106030 116380 116633 126775 145475 160712 169648 184400 200890 202840 211600 212060 220979 232760 233266 243869 253550 265075 290950 321424 401780 405680 424120 441958 462047 465520 466532 487738 502225 507100 530150 581900 583165 803560 848240 883916 924094 933064 975476 1004450 1014200 1060300 1104895 1163800 1166330 1219345 1607120 1767832 1848188 1866128 1950952 2008900 2028400 2120600 2209790 2310235 2327600 2332660 2438690 2682559 2915825 3535664 3696376 3901904 4017800 4241200 4419580 4620470 4665320 4877380 5082517 5365118 5524475 5831650 6096725 7392752 8035600 8839160 9240940 9261029 9330640 9754760 10165034 10627081 10730236 11048950 11551175 11663300 12193450 13412795 17678320 18481880 18522058 19509520 20330068 21254162 21460472 22097900 23102350 23326600 24386900 25412585 26825590 36963760 37044116 40660136 42508324 42920944 44195800 46204700 46305145 46653200 48773800 50825170 53135405 53651180 67063975 74088232 81320272 85016648 88391600 92409400 92610290 97547600 101650340 101871319 106270810 107302360 116897891 127062925 134127950 148176464 170033296 184818800 185220580 203300680 203742638 212541620 213003667 214604720 231525725 233795782 254125850 265677025 268255900 370441160 406601360 407485276 425083240 426007334 463051450 467591564 508251700 509356595 531354050 536511800 584489455 740882320 814970552 850166480 852014668 926102900 935183128 1016503400 1018713190 1062708100 1065018335 1073023600 1168978910 1629941104 1704029336 1852205800 1870366256 2033006800 2037426380 2125416200 2130036670 2337957820 2343040337 2546782975 2922447275 3408058672 3704411600 4074852760 4250832400 4260073340 4675915640 4686080674 4899084341 5093565950 5325091675 5844894550 8149705520 8520146680 9351831280 9372161348 9798168682 10187131900 10650183350 11689789100 11715201685 17040293360 18744322696 19596337364 20374263800 21300366700 23379578200 23430403370 24495421705 37488645392 39192674728 40748527600 42600733400 46759156400 46860806740 48990843410 53889927751 58576008425 78385349456 85201466800 93721613480 97981686820 107779855502 117152016850 122477108525 187443226960 195963373640 215559711004 234304033700 244954217050 269449638755 391926747280 431119422008 468608067400 489908434100 538899277510 862238844016 937216134800 979816868200 1077798555020 1347248193775 1959633736400 2155597110040 2694496387550 4311194220080 5388992775100 10777985550200 21555971100400
• Sum of all divisors σ(n): 59190454849680
• Sum of proper divisors (its aliquot sum) s(n): 37634483749280
• 21555971100400 is an abundant number, because the sum of its proper divisors (37634483749280) is greater than itself. Its abundance is 16078512648880

Bases of 21555971100400

• Binary: 100111001101011100100000000000000111011110000₂
• Hexadecimal: 0x139AE4000EF0
• Base-36: 7N2OCMUB4

Squares and roots of 21555971100400

• 21555971100400 squared (21555971100400²) is 464659890081279986880160000
• 21555971100400 cubed (21555971100400³) is 10016195162107112004229620118128064000000
• The square root of 21555971100400 is 4642840.8437507311
• The cube root of 21555971100400 is 27830.5975328751

Scales and comparisons

• 21,555,971,100,400 seconds is equal to 685,413 years, 10 weeks, 4 days, 6 hours, 6 minutes, 40 seconds.
• To count from 1 to 21,555,971,100,400 would take you about one million, seven hundred thirteen thousand, five hundred thirty-three 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 21555971100400 cubic inches would be around 2319.2 feet tall.

Recreational maths with 21555971100400

• 21555971100400 backwards is 00400117955512
• 21555971100400 is a Harshad number.
• The number of decimal digits it has is: 14
• The sum of 21555971100400's digits is 40
• More coming soon!