20997843131655

Names of 20997843131655

• Cardinal: 20997843131655 can be written as Twenty trillion, nine hundred ninety-seven billion, eight hundred forty-three million, one hundred thirty-one thousand, six hundred fifty-five.

Scientific notation

• Scientific notation: 2.0997843131655 × 10¹³

Factors of 20997843131655

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 15
• Sum of prime factors: 401

Divisors of 20997843131655

• Number of divisors d(n): 360
• Complete list of divisors:
  1 3 5 9 13 15 27 39 45 65 73 81 117 135 169 195 219 243 307 351 365 405 507 585 657 729 845 921 949 1053 1095 1215 1521 1535 1755 1971 2187 2197 2535 2763 2847 3159 3285 3645 3991 4563 4605 4745 5265 5913 6561 6591 7605 8289 8541 9477 9855 10935 10985 11973 12337 13689 13815 14235 15795 17739 19773 19955 22411 22815 24867 25623 28431 28561 29565 32805 32955 35919 37011 41067 41445 42705 47385 51883 53217 59319 59865 61685 67233 68445 74601 76869 85293 85683 88695 98865 107757 111033 112055 123201 124335 128115 142155 142805 155649 159651 160381 177957 179595 185055 201699 205335 223803 230607 257049 259415 266085 291343 296595 323271 333099 336165 369603 373005 384345 426465 428415 466947 478953 481143 533871 538785 555165 605097 616005 671409 674479 691821 771147 778245 798255 801905 874029 889785 969813 999297 1008495 1108809 1119015 1153035 1285245 1400841 1443429 1456715 1601613 1616355 1665495 1815291 1848015 2014227 2023437 2075463 2084953 2313441 2334735 2394765 2405715 2622087 2669355 2909439 2997891 3025485 3357045 3372395 3459105 3787459 3855735 4202523 4330287 4370145 4804839 4849065 4996485 5445873 5544045 6070311 6226389 6254859 6940323 7004205 7217145 7866261 8008065 8728317 8768227 8993673 9076455 10071135 10117185 10377315 10424765 11362377 11567205 12607569 12990861 13110435 14414517 14547195 14989455 16337619 18210933 18764577 18937295 20820969 21012615 21651435 23598783 24024195 26184951 26304681 26981019 27229365 30351555 31131945 31274295 34087131 34701615 37822707 38972583 39331305 43641585 43841135 44968365 49012857 49236967 54632799 56293731 56811885 62462907 63037845 64954305 70796349 72072585 78914043 80943057 81688095 91054665 93822885 102261393 104104845 113468121 116917749 117993915 130924755 131523405 134905095 147038571 147710901 163898397 168881193 170435655 187388721 189113535 194862915 212389047 236742129 245064285 246184835 273163995 281468655 306784179 312314535 340404363 350753247 353981745 394570215 404715285 443132703 491695191 506643579 511306965 567340605 584588745 637167141 640080571 710226387 735192855 738554505 819491985 844405965 920352537 936943605 1052259741 1061945235 1183710645 1329398109 1475085573 1519930737 1533920895 1702021815 1753766235 1911501423 1920241713 2130679161 2215663515 2458475955 2533217895 2761057611 3185835705 3200402855 3551131935 3988194327 4425256719 4559792211 4601762685 5261298705 5760725139 6392037483 6646990545 7375427865 7599653685 8283172833 9557507115 9601208565 10653395805 11964582981 13679376633 13805288055 17282175417 19176112449 19940971635 22126283595 22798961055 24849518499 28803625695 31960187415 35893748943 41415864165 51846526251 57528337347 59822914905 68396883165 86410877085 95880562245 107681246829 124247592495 155539578753 179468744715 259232631255 287641686735 323043740487 466618736259 538406234145 777697893765 1399856208777 1615218702435 2333093681295 4199568626331 6999281043885 20997843131655
• Sum of all divisors σ(n): 41639668582512
• Sum of proper divisors (its aliquot sum) s(n): 20641825450857
• 20997843131655 is a deficient number, because the sum of its proper divisors (20641825450857) is less than itself. Its deficiency is 356017680798

Bases of 20997843131655

• Binary: 100110001100011110000111110110001110100000111₂
• Hexadecimal: 0x1318F0FB1D07
• Base-36: 7FY9XNHFR

Squares and roots of 20997843131655

• 20997843131655 squared (20997843131655²) is 440909416181591057663039025
• 20997843131655 cubed (20997843131655³) is 9258146756250637706399811046450477836375
• The square root of 20997843131655 is 4582340.3552829857
• The cube root of 20997843131655 is 27588.2971860399

Scales and comparisons

• 20,997,843,131,655 seconds is equal to 667,666 years, 23 weeks, 6 days, 19 hours, 14 minutes, 15 seconds.
• To count from 1 to 20,997,843,131,655 would take you about one million, six hundred sixty-nine thousand, one hundred sixty-six 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 20997843131655 cubic inches would be around 2299 feet tall.

Recreational maths with 20997843131655

• 20997843131655 backwards is 55613134879902
• The number of decimal digits it has is: 14
• The sum of 20997843131655's digits is 63
• More coming soon!