21210713127765

Names of 21210713127765

• Cardinal: 21210713127765 can be written as Twenty-one trillion, two hundred ten billion, seven hundred thirteen million, one hundred twenty-seven thousand, seven hundred sixty-five.

Scientific notation

• Scientific notation: 2.1210713127765 × 10¹³

Factors of 21210713127765

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 7454

Divisors of 21210713127765

• Number of divisors d(n): 288
• Complete list of divisors:
  1 3 5 7 9 15 21 27 35 45 49 59 63 105 127 135 147 177 189 245 295 315 381 413 441 531 635 735 885 889 945 1143 1239 1323 1593 1905 2065 2205 2655 2667 2891 3429 3481 3717 4445 5715 6195 6223 6615 7253 7493 7965 8001 8673 10443 11151 13335 14455 17145 17405 18585 18669 21759 22479 24003 24367 26019 31115 31329 36265 37465 40005 43365 50771 52215 52451 55755 56007 65277 67437 73101 78057 93345 93987 108795 112395 120015 121835 130095 152313 156645 157353 168021 170569 195831 202311 219303 253855 262255 280035 326385 337185 355397 365505 367157 390285 427927 442087 456939 469935 472059 511707 657909 761565 786765 840105 852845 921131 979155 1011555 1066191 1096515 1101471 1283781 1326261 1370817 1416177 1535121 1776985 1835785 2139635 2210435 2284695 2360295 2558535 2763393 2995489 3094609 3198573 3289545 3304413 3851343 3978783 4605363 4605655 5330955 5507355 6418905 6447917 6631305 6854085 7080885 7675605 8290179 8986467 9283827 9595719 9913239 11554029 11936349 13816965 14977445 15473045 15992865 16522065 19256715 19343751 19893915 20968423 21662263 23026815 24870537 25247693 26959401 27851481 32239585 41450895 44932335 45135419 46419135 47978595 49566195 54346729 57770145 58031253 59681745 62905269 64986789 75743079 80878203 83554443 96718755 104842115 108311315 124352685 126238465 134797005 135406257 139257405 163040187 174093759 176733851 188715807 194960367 225677095 227229237 271733645 290156265 314526345 324933945 378715395 380427103 404391015 406218771 417772215 489120561 530201553 566147421 584881101 677031285 681687711 815200935 870468795 883669255 943579035 974801835 1136146185 1141281309 1218656313 1237136957 1467361683 1590604659 1902135515 2031093855 2445602805 2651007765 2662989721 2830737105 2924405505 3206457011 3408438555 3423843927 3711410871 4771813977 5706406545 6093281565 6185684785 7336808415 7953023295 7988969163 9619371033 10271531781 11134232613 13314948605 16032285055 17119219635 18557054355 22445199077 23859069885 23966907489 28858113099 33402697839 39944845815 48096855165 51357658905 55671163065 67335597231 71900722467 86574339297 112225995385 119834537445 144290565495 157116393539 167013489195 202006791693 336677986155 359503612335 432871696485 471349180617 606020375079 785581967695 1010033958465 1414047541851 2356745903085 3030101875395 4242142625553 7070237709255 21210713127765
• Sum of all divisors σ(n): 44977938370560
• Sum of proper divisors (its aliquot sum) s(n): 23767225242795
• 21210713127765 is an abundant number, because the sum of its proper divisors (23767225242795) is greater than itself. Its abundance is 2556512115030

Bases of 21210713127765

• Binary: 100110100101010000001000001010111101101010101₂
• Hexadecimal: 0x134A81057B55
• Base-36: 7IO2EY9N9

Squares and roots of 21210713127765

• 21210713127765 squared (21210713127765²) is 449894351388342509213895225
• 21210713127765 cubed (21210713127765³) is 9542580025100036313767367919258748422125
• The square root of 21210713127765 is 4605508.9976858149
• The cube root of 21210713127765 is 27681.2112755083

Scales and comparisons

• 21,210,713,127,765 seconds is equal to 674,435 years, 3 weeks, 3 days, 21 hours, 42 minutes, 45 seconds.
• To count from 1 to 21,210,713,127,765 would take you about one million, six hundred eighty-six thousand and eighty-seven 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 21210713127765 cubic inches would be around 2306.8 feet tall.

Recreational maths with 21210713127765

• 21210713127765 backwards is 56772131701212
• 21210713127765 is a Harshad number.
• The number of decimal digits it has is: 14
• The sum of 21210713127765's digits is 45
• More coming soon!