21485871990016

Names of 21485871990016

• Cardinal: 21485871990016 can be written as Twenty-one trillion, four hundred eighty-five billion, eight hundred seventy-one million, nine hundred ninety thousand and sixteen.

Scientific notation

• Scientific notation: 2.1485871990016 × 10¹³

Factors of 21485871990016

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 14
• Sum of prime factors: 315

Divisors of 21485871990016

• Number of divisors d(n): 216
• Complete list of divisors:
  1 2 4 7 8 14 16 23 28 32 46 56 64 92 112 128 161 184 224 256 283 322 368 448 529 566 644 736 896 1058 1132 1288 1472 1792 1981 2116 2264 2576 2944 3703 3962 4232 4528 5152 5888 6509 7406 7924 8464 9056 10304 13018 14812 15848 16928 18112 20608 26036 29624 31696 33856 36224 41216 45563 52072 59248 63392 67712 72448 80089 91126 104144 118496 126784 135424 149707 160178 182252 208288 236992 253568 299414 320356 364504 416576 473984 507136 560623 598828 640712 729008 833152 947968 1047949 1121246 1197656 1281424 1458016 1666304 1842047 2095898 2242492 2395312 2562848 2916032 3684094 4191796 4484984 4790624 5125696 5832064 7368188 8383592 8969968 9581248 10251392 11664128 12894329 14736376 16767184 17939936 19162496 20502784 22665187 25788658 29472752 33534368 35879872 38324992 42367081 45330374 51577316 58945504 67068736 71759744 84734162 90660748 103154632 117891008 134137472 143519488 158656309 169468324 181321496 206309264 235782016 268274944 296569567 317312618 338936648 362642992 412618528 471564032 521299301 593139134 634625236 677873296 725285984 825237056 1042598602 1186278268 1269250472 1355746592 1450571968 1650474112 2085197204 2372556536 2538500944 2711493184 2901143936 3300948224 3649095107 4170394408 4745113072 5077001888 5422986368 5802287872 7298190214 8340788816 9490226144 10154003776 10845972736 11989883923 14596380428 16681577632 18980452288 20308007552 23979767846 29192760856 33363155264 37960904576 40616015104 47959535692 58385521712 66726310528 75921809152 83929187461 95919071384 116771043424 133452621056 167858374922 191838142768 233542086848 335716749844 383676285536 467084173696 671433499688 767352571072 934168347392 1342866999376 1534705142144 2685733998752 3069410284288 5371467997504 10742935995008 21485871990016
• Sum of all divisors σ(n): 51420068651840
• Sum of proper divisors (its aliquot sum) s(n): 29934196661824
• 21485871990016 is an abundant number, because the sum of its proper divisors (29934196661824) is greater than itself. Its abundance is 8448324671808

Bases of 21485871990016

• Binary: 100111000101010010001110001001000010100000000₂
• Hexadecimal: 0x138A91C48500
• Base-36: 7M6H1FMKG

Squares and roots of 21485871990016

• 21485871990016 squared (21485871990016²) is 461642695171354108003680256
• 21485871990016 cubed (21485871990016³) is 9918795853577691762650450095034488324096
• The square root of 21485871990016 is 4635285.5348959895
• The cube root of 21485871990016 is 27800.3967948885

Scales and comparisons

• 21,485,871,990,016 seconds is equal to 683,184 years, 13 weeks, 6 days, 23 hours, 16 seconds.
• To count from 1 to 21,485,871,990,016 would take you about one million, seven hundred seven thousand, nine hundred sixty 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 21485871990016 cubic inches would be around 2316.7 feet tall.

Recreational maths with 21485871990016

• 21485871990016 backwards is 61009917858412
• The number of decimal digits it has is: 14
• The sum of 21485871990016's digits is 61
• More coming soon!