21328113664

Names of 21328113664

• Cardinal: 21328113664 can be written as Twenty-one billion, three hundred twenty-eight million, one hundred thirteen thousand, six hundred sixty-four.

Scientific notation

• Scientific notation: 2.1328113664 × 10¹⁰

Factors of 21328113664

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 16
• Sum of prime factors: 2827

Divisors of 21328113664

• Number of divisors d(n): 156
• Complete list of divisors:
  1 2 4 8 11 13 16 22 26 32 44 52 64 88 104 128 143 169 176 208 256 286 338 352 416 512 572 676 704 832 1024 1144 1352 1408 1664 1859 2048 2288 2704 2801 2816 3328 3718 4096 4576 5408 5602 5632 6656 7436 9152 10816 11204 11264 13312 14872 18304 21632 22408 22528 26624 29744 30811 36413 36608 43264 44816 45056 53248 59488 61622 72826 73216 86528 89632 118976 123244 145652 146432 173056 179264 237952 246488 291304 292864 346112 358528 400543 473369 475904 492976 582608 585728 692224 717056 801086 946738 951808 985952 1165216 1434112 1602172 1893476 1903616 1971904 2330432 2868224 3204344 3786952 3807232 3943808 4660864 5207059 5736448 6408688 7573904 7614464 7887616 9321728 10414118 11472896 12817376 15147808 15775232 18643456 20828236 25634752 30295616 31550464 37286912 41656472 51269504 60591232 63100928 74573824 83312944 102539008 121182464 126201856 149147648 166625888 205078016 242364928 333251776 410156032 484729856 666503552 820312064 969459712 1333007104 1640624128 1938919424 2666014208 5332028416 10664056832 21328113664
• Sum of all divisors σ(n): 50400795672
• Sum of proper divisors (its aliquot sum) s(n): 29072682008
• 21328113664 is an abundant number, because the sum of its proper divisors (29072682008) is greater than itself. Its abundance is 7744568344

Bases of 21328113664

• Binary: 10011110111010000010011000000000000₂
• Hexadecimal: 0x4F7413000
• Base-36: 9SQ7HTS

Squares and roots of 21328113664

• 21328113664 squared (21328113664²) is 454888432464503504896
• 21328113664 cubed (21328113664³) is 9701912192041718397748268498944
• The square root of 21328113664 is 146041.4792584627
• The cube root of 21328113664 is 2773.2188841659

Scales and comparisons

• 21,328,113,664 seconds is equal to 678 years, 8 weeks, 5 days, 4 hours, 1 minute, 4 seconds.
• To count from 1 to 21,328,113,664 would take you about one thousand, three hundred fifty-six 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 21328113664 cubic inches would be around 231.1 feet tall.

Recreational maths with 21328113664

• 21328113664 backwards is 46631182312
• The number of decimal digits it has is: 11
• The sum of 21328113664's digits is 37
• More coming soon!