20168948438821

Names of 20168948438821

• Cardinal: 20168948438821 can be written as Twenty trillion, one hundred sixty-eight billion, nine hundred forty-eight million, four hundred thirty-eight thousand, eight hundred twenty-one.

Scientific notation

• Scientific notation: 2.0168948438821 × 10¹³

Factors of 20168948438821

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 235

Divisors of 20168948438821

• Number of divisors d(n): 180
• Complete list of divisors:
  1 7 13 29 49 89 91 97 203 343 377 623 637 679 841 1157 1261 1421 2401 2581 2639 2813 4361 4459 4753 5887 7921 8099 8633 8827 9947 10933 18067 18473 19691 30527 31213 33271 33553 36569 41209 55447 56693 60431 61789 69629 74849 76531 81577 102973 112229 126469 129311 137837 213689 229709 232897 234871 250357 255983 288463 388129 396851 423017 432523 523943 535717 571039 720811 768337 785603 885283 905177 964859 973037 1060501 1607963 1644097 1752499 1791881 2019241 2716903 2777957 2961119 2986217 3027661 3254641 3667601 3750019 3997273 5045677 5378359 5499221 6196981 6661561 6754013 6811259 7260353 7423507 9988381 11255741 11508679 12267493 12543167 19018321 20727833 20903519 22281773 22782487 25673207 26250133 27980911 35319739 37648513 38494547 46630927 47678813 50822471 51964549 69918667 78790187 80560753 85872451 86600293 87802169 94384589 146324633 155972411 159477409 179712449 195866377 247238173 263539591 269461829 289663049 326416489 333751691 355757297 363751843 489430669 551531309 601107157 606202051 646171417 660692123 1024272431 1091806877 1116341863 1844777137 2027641343 2284915423 2336261837 2490301079 2546262901 3426014683 4243414357 4523199919 4624844861 7169907017 7642648139 7814393041 8400228421 14193489401 15994407961 17432107553 23982102781 29703900499 31662399433 32373914027 53498536973 58801598947 99354425807 207927303493 221636796031 226617398189 411611192629 695480980649 1551457572217 2881278348403 20168948438821
• Sum of all divisors σ(n): 26814648410732
• Sum of proper divisors (its aliquot sum) s(n): 6645699971911
• 20168948438821 is a deficient number, because the sum of its proper divisors (6645699971911) is less than itself. Its deficiency is 13523248466910

Bases of 20168948438821

• Binary: 100100101011111110011000000011101011100100101₂
• Hexadecimal: 0x1257F301D725
• Base-36: 75DHJ5J51

Squares and roots of 20168948438821

• 20168948438821 squared (20168948438821²) is 406786481127820053179870041
• 20168948438821 cubed (20168948438821³) is 8204455563476434440933157060130619261661
• The square root of 20168948438821 is 4490985.2414387869
• The cube root of 20168948438821 is 27220.3947201457

Scales and comparisons

• 20,168,948,438,821 seconds is equal to 641,310 years, 9 weeks, 5 hours, 27 minutes, 1 second.
• To count from 1 to 20,168,948,438,821 would take you about one million, six hundred three thousand, two hundred seventy-five 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 20168948438821 cubic inches would be around 2268.4 feet tall.

Recreational maths with 20168948438821

• 20168948438821 backwards is 12883484986102
• The number of decimal digits it has is: 14
• The sum of 20168948438821's digits is 64
• More coming soon!