21738695566121397

Names of 21738695566121397

• Cardinal: 21738695566121397 can be written as Twenty-one quadrillion, seven hundred thirty-eight trillion, six hundred ninety-five billion, five hundred sixty-six million, one hundred twenty-one thousand, three hundred ninety-seven.

Scientific notation

• Scientific notation: 2.1738695566121397 × 10¹⁶

Factors of 21738695566121397

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 27
• Sum of prime factors: 67

Divisors of 21738695566121397

• Number of divisors d(n): 192
• Complete list of divisors:
  1 3 9 17 27 47 51 81 141 153 243 289 423 459 729 799 867 1269 1377 2187 2397 2601 3807 4131 4913 6561 7191 7803 11421 12393 13583 14739 19683 21573 23409 34263 37179 40749 44217 59049 64719 70227 102789 111537 122247 132651 177147 194157 210681 230911 308367 334611 366741 397953 531441 582471 632043 692733 925101 1003833 1100223 1193859 1594323 1747413 1896129 2078199 2775303 3011499 3300669 3581577 4782969 5242239 5688387 6234597 8325909 9034497 9902007 10744731 14348907 15726717 17065161 18703791 24977727 27103491 29706021 32234193 43046721 47180151 51195483 56111373 74933181 81310473 89118063 96702579 129140163 141540453 153586449 168334119 224799543 243931419 267354189 290107737 387420489 424621359 460759347 505002357 674398629 731794257 802062567 870323211 1162261467 1273864077 1382278041 1515007071 2023195887 2195382771 2406187701 2610969633 3486784401 3821592231 4146834123 4545021213 6069587661 6586148313 7218563103 7832908899 10460353203 11464776693 12440502369 13635063639 18208762983 19758444939 21655689309 23498726697 31381059609 34394330079 37321507107 40905190917 54626288949 59275334817 64967067927 70496180091 94143178827 103182990237 111964521321 122715572751 163878866847 177826004451 194901203781 211488540273 309548970711 335893563963 368146718253 491636600541 533478013353 584703611343 634465620819 928646912133 1007680691889 1104440154759 1474909801623 1600434040059 1754110834029 1903396862457 2785940736399 3023042075667 3313320464277 4424729404869 5262332502087 5710190587371 8357822209197 9069126227001 9939961392831 15786997506261 17130571762113 25073466627591 27207378681003 29819884178493 47360992518783 51391715286339 75220399882773 89459652535479 142082977556349 154175145859017 268378957606437 426248932669047 462525437577051 805136872819311 1278746798007141 2415410618457933 7246231855373799 21738695566121397
• Sum of all divisors σ(n): 35382772330214400
• Sum of proper divisors (its aliquot sum) s(n): 13644076764093003
• 21738695566121397 is a deficient number, because the sum of its proper divisors (13644076764093003) is less than itself. Its deficiency is 8094618802028394

Bases of 21738695566121397

• Binary: 1001101001110110011101001111011000110010101100110110101₂
• Hexadecimal: 0x4D3B3A7B1959B5
• Base-36: 5Y1Q2VJKYB9

Squares and roots of 21738695566121397

• 21738695566121397 squared (21738695566121397²) is 472570884916506085207266141231609
• 21738695566121397 cubed (21738695566121397³) is 10273074600612515802423423744599414835092787637773
• The square root of 21738695566121397 is 147440481.4361422145
• The cube root of 21738695566121397 is 279090.1400058209

Scales and comparisons

• 21,738,695,566,121,397 seconds is equal to 691,223,276 years, 41 weeks, 5 days, 49 minutes, 57 seconds.
• To count from 1 to 21,738,695,566,121,397 would take you about two billion, seventy-three million, six hundred sixty-nine thousand, eight 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 21738695566121397 cubic inches would be around 23257.5 feet tall.

Recreational maths with 21738695566121397

• 21738695566121397 backwards is 79312166559683712
• 21738695566121397 is a Harshad number.
• The number of decimal digits it has is: 17
• The sum of 21738695566121397's digits is 81
• More coming soon!