21305149013664

Names of 21305149013664

• Cardinal: 21305149013664 can be written as Twenty-one trillion, three hundred five billion, one hundred forty-nine million, thirteen thousand, six hundred sixty-four.

Scientific notation

• Scientific notation: 2.1305149013664 × 10¹³

Factors of 21305149013664

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 14745316

Divisors of 21305149013664

• Number of divisors d(n): 144
• Complete list of divisors:
  1 2 3 4 6 8 9 12 16 18 24 29 32 36 48 58 72 87 96 116 144 173 174 232 261 288 346 348 464 519 522 692 696 928 1038 1044 1384 1392 1557 2076 2088 2768 2784 3114 4152 4176 5017 5536 6228 8304 8352 10034 12456 15051 16608 20068 24912 30102 40136 45153 49824 60204 80272 90306 120408 160544 180612 240816 361224 481632 722448 1444896 14745109 29490218 44235327 58980436 88470654 117960872 132705981 176941308 235921744 265411962 353882616 427608161 471843488 530823924 707765232 855216322 1061647848 1282824483 1415530464 1710432644 2123295696 2550903857 2565648966 3420865288 3848473449 4246591392 5101807714 5131297932 6841730576 7652711571 7696946898 10203615428 10262595864 13683461152 15305423142 15393893796 20407230856 20525191728 22958134713 30610846284 30787787592 40814461712 41050383456 45916269426 61221692568 61575575184 73976211853 81628923424 91832538852 122443385136 123151150368 147952423706 183665077704 221928635559 244886770272 295904847412 367330155408 443857271118 591809694824 665785906677 734660310816 887714542236 1183619389648 1331571813354 1775429084472 2367238779296 2663143626708 3550858168944 5326287253416 7101716337888 10652574506832 21305149013664
• Sum of all divisors σ(n): 63037999369800
• Sum of proper divisors (its aliquot sum) s(n): 41732850356136
• 21305149013664 is an abundant number, because the sum of its proper divisors (41732850356136) is greater than itself. Its abundance is 20427701342472

Bases of 21305149013664

• Binary: 100110110000001111101110101101011111010100000₂
• Hexadecimal: 0x13607DD6BEA0
• Base-36: 7JVG7N1K0

Squares and roots of 21305149013664

• 21305149013664 squared (21305149013664²) is 453909374494428112058704896
• 21305149013664 cubed (21305149013664³) is 9670606862302808290291270279479647698944
• The square root of 21305149013664 is 4615750.1030346087
• The cube root of 21305149013664 is 27722.2318940295

Scales and comparisons

• 21,305,149,013,664 seconds is equal to 677,437 years, 43 weeks, 3 days, 20 hours, 14 minutes, 24 seconds.
• To count from 1 to 21,305,149,013,664 would take you about one million, six hundred ninety-three thousand, five hundred ninety-four 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 21305149013664 cubic inches would be around 2310.2 feet tall.

Recreational maths with 21305149013664

• 21305149013664 backwards is 46631094150312
• The number of decimal digits it has is: 14
• The sum of 21305149013664's digits is 45
• More coming soon!