21004821902016

Names of 21004821902016

• Cardinal: 21004821902016 can be written as Twenty-one trillion, four billion, eight hundred twenty-one million, nine hundred two thousand and sixteen.

Scientific notation

• Scientific notation: 2.1004821902016 × 10¹³

Factors of 21004821902016

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 135698

Divisors of 21004821902016

• Number of divisors d(n): 168
• Complete list of divisors:
  1 2 3 4 6 8 9 12 16 18 24 32 36 48 61 64 72 96 122 144 183 192 244 288 366 488 549 576 732 976 1098 1464 1952 2196 2928 3904 4392 4561 5856 8784 9122 11712 13683 17568 18244 27366 35136 36488 41049 54732 72976 82098 109464 131071 145952 164196 218928 262142 278221 291904 328392 393213 437856 524284 556442 656784 786426 834663 875712 1048568 1112884 1179639 1313568 1572852 1669326 2097136 2225768 2359278 2503989 2627136 3145704 3338652 4194272 4451536 4718556 5007978 6291408 6677304 7995331 8388544 8903072 9437112 10015956 12582816 13354608 15990662 17806144 18874224 20031912 23985993 25165632 26709216 31981324 37748448 40063824 47971986 53418432 63962648 71957979 75496896 80127648 95943972 127925296 143915958 160255296 191887944 255850592 287831916 383775888 511701184 575663832 597814831 767551776 1151327664 1195629662 1535103552 1793444493 2302655328 2391259324 3586888986 4605310656 4782518648 5380333479 7173777972 9565037296 10760666958 14347555944 19130074592 21521333916 28695111888 36466704691 38260149184 43042667832 57390223776 72933409382 86085335664 109400114073 114780447552 145866818764 172170671328 218800228146 291733637528 328200342219 344341342656 437600456292 583467275056 656400684438 875200912584 1166934550112 1312801368876 1750401825168 2333869100224 2625602737752 3500803650336 5251205475504 7001607300672 10502410951008 21004821902016
• Sum of all divisors σ(n): 61207405395968
• Sum of proper divisors (its aliquot sum) s(n): 40202583493952
• 21004821902016 is an abundant number, because the sum of its proper divisors (40202583493952) is greater than itself. Its abundance is 19197761591936

Bases of 21004821902016

• Binary: 100110001101010010000111100101011001011000000₂
• Hexadecimal: 0x131A90F2B2C0
• Base-36: 7G1HCMR40

Squares and roots of 21004821902016

• 21004821902016 squared (21004821902016²) is 441202543135411051904864256
• 21004821902016 cubed (21004821902016³) is 9267380841275841055514318121596212740096
• The square root of 21004821902016 is 4583101.7774009775
• The cube root of 21004821902016 is 27591.3532311083

Scales and comparisons

• 21,004,821,902,016 seconds is equal to 667,888 years, 18 weeks, 6 days, 14 hours, 33 minutes, 36 seconds.
• To count from 1 to 21,004,821,902,016 would take you about one million, six hundred sixty-nine thousand, seven hundred twenty 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 21004821902016 cubic inches would be around 2299.3 feet tall.

Recreational maths with 21004821902016

• 21004821902016 backwards is 61020912840012
• 21004821902016 is a Harshad number.
• The number of decimal digits it has is: 14
• The sum of 21004821902016's digits is 36
• More coming soon!