21007488601440

Names of 21007488601440

• Cardinal: 21007488601440 can be written as Twenty-one trillion, seven billion, four hundred eighty-eight million, six hundred one thousand, four hundred forty.

Scientific notation

• Scientific notation: 2.100748860144 × 10¹³

Factors of 21007488601440

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 21741563

Divisors of 21007488601440

• Number of divisors d(n): 288
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 11 12 15 16 18 20 22 24 30 32 33 36 40 44 45 48 55 60 61 66 72 80 88 90 96 99 110 120 122 132 144 160 165 176 180 183 198 220 240 244 264 288 305 330 352 360 366 396 440 480 488 495 528 549 610 660 671 720 732 792 880 915 976 990 1056 1098 1220 1320 1342 1440 1464 1584 1760 1830 1952 1980 2013 2196 2440 2640 2684 2745 2928 3168 3355 3660 3960 4026 4392 4880 5280 5368 5490 5856 6039 6710 7320 7920 8052 8784 9760 10065 10736 10980 12078 13420 14640 15840 16104 17568 20130 21472 21960 24156 26840 29280 30195 32208 40260 43920 48312 53680 60390 64416 80520 87840 96624 107360 120780 161040 193248 241560 322080 483120 966240 21741481 43482962 65224443 86965924 108707405 130448886 173931848 195673329 217414810 239156291 260897772 326122215 347863696 391346658 434829620 478312582 521795544 652244430 695727392 717468873 782693316 869659240 956625164 978366645 1043591088 1195781455 1304488860 1326230341 1434937746 1565386632 1739318480 1913250328 1956733290 2087182176 2152406619 2391562910 2608977720 2652460682 2869875492 3130773264 3478636960 3587344365 3826500656 3913466580 3978691023 4304813238 4783125820 5217955440 5304921364 5739750984 6261546528 6631151705 7174688730 7653001312 7826933160 7957382046 8609626476 9566251640 10435910880 10609842728 10762033095 11479501968 11936073069 13262303410 14349377460 14588533751 15653866320 15914764092 17219252952 19132503280 19893455115 21219685456 21524066190 22959003936 23872146138 26524606820 28698754920 29177067502 31307732640 31829528184 34438505904 38265006560 39786910230 42439370912 43048132380 43765601253 47744292276 53049213640 57397509840 58354135004 59680365345 63659056368 68877011808 72942668755 79573820460 86096264760 87531202506 95488584552 106098427280 114795019680 116708270008 119360730690 127318112736 131296803759 145885337510 159147640920 172192529520 175062405012 190977169104 212196854560 218828006265 233416540016 238721461380 262593607518 291770675020 318295281840 344385059040 350124810024 381954338208 437656012530 466833080032 477442922760 525187215036 583541350040 636590563680 656484018795 700249620048 875312025060 954885845520 1050374430072 1167082700080 1312968037590 1400499240096 1750624050120 1909771691040 2100748860144 2334165400160 2625936075180 3501248100240 4201497720288 5251872150360 7002496200480 10503744300720 21007488601440
• Sum of all divisors σ(n): 79487206055712
• Sum of proper divisors (its aliquot sum) s(n): 58479717454272
• 21007488601440 is an abundant number, because the sum of its proper divisors (58479717454272) is greater than itself. Its abundance is 37472228852832

Bases of 21007488601440

• Binary: 100110001101100101111111001010100110101100000₂
• Hexadecimal: 0x131B2FE54D60
• Base-36: 7G2PGBDK0

Squares and roots of 21007488601440

• 21007488601440 squared (21007488601440²) is 441314577339631527170073600
• 21007488601440 cubed (21007488601440³) is 9270910953111620626594980812285865984000
• The square root of 21007488601440 is 4583392.6955302445
• The cube root of 21007488601440 is 27592.5208159069

Scales and comparisons

• 21,007,488,601,440 seconds is equal to 667,973 years, 8 weeks, 1 day, 4 hours, 24 minutes.
• To count from 1 to 21,007,488,601,440 would take you about one million, six hundred sixty-nine thousand, nine hundred thirty-two 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 21007488601440 cubic inches would be around 2299.4 feet tall.

Recreational maths with 21007488601440

• 21007488601440 backwards is 04410688470012
• 21007488601440 is a Harshad number.
• The number of decimal digits it has is: 14
• The sum of 21007488601440's digits is 45
• More coming soon!