21440629009920

Names of 21440629009920

• Cardinal: 21440629009920 can be written as Twenty-one trillion, four hundred forty billion, six hundred twenty-nine million, nine thousand, nine hundred twenty.

Scientific notation

• Scientific notation: 2.144062900992 × 10¹³

Factors of 21440629009920

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 52847

Divisors of 21440629009920

• Number of divisors d(n): 120
• Complete list of divisors:
  1 2 3 4 5 6 8 10 12 15 16 20 24 30 32 40 48 60 64 80 96 120 128 160 192 240 256 320 384 480 512 640 768 960 1280 1536 1920 2560 3840 7680 52837 105674 158511 211348 264185 317022 422696 528370 634044 792555 845392 1056740 1268088 1585110 1690784 2113480 2536176 3170220 3381568 4226960 5072352 6340440 6763136 8453920 10144704 12680880 13526272 16907840 20289408 25361760 27052544 33815680 40578816 50723520 67631360 81157632 101447040 135262720 202894080 405788160 2791748569 5583497138 8375245707 11166994276 13958742845 16750491414 22333988552 27917485690 33500982828 41876228535 44667977104 55834971380 67001965656 83752457070 89335954208 111669942760 134003931312 167504914140 178671908416 223339885520 268007862624 335009828280 357343816832 446679771040 536015725248 670019656560 714687633664 893359542080 1072031450496 1340039313120 1429375267328 1786719084160 2144062900992 2680078626240 3573438168320 4288125801984 5360157252480 7146876336640 10720314504960 21440629009920
• Sum of all divisors σ(n): 68544308144664
• Sum of proper divisors (its aliquot sum) s(n): 47103679134744
• 21440629009920 is an abundant number, because the sum of its proper divisors (47103679134744) is greater than itself. Its abundance is 25663050124824

Bases of 21440629009920

• Binary: 100111000000000001001000100110110111000000000₂
• Hexadecimal: 0x138009136E00
• Base-36: 7LLOSXJPC

Squares and roots of 21440629009920

• 21440629009920 squared (21440629009920²) is 459700572341023079458406400
• 21440629009920 cubed (21440629009920³) is 9856269427211767004728161501852991488000
• The square root of 21440629009920 is 4630402.6833440739
• The cube root of 21440629009920 is 27780.8699065857

Scales and comparisons

• 21,440,629,009,920 seconds is equal to 681,745 years, 35 weeks, 3 days, 8 hours, 32 minutes.
• To count from 1 to 21,440,629,009,920 would take you about one million, seven hundred four thousand, three hundred sixty-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 21440629009920 cubic inches would be around 2315.1 feet tall.

Recreational maths with 21440629009920

• 21440629009920 backwards is 02990092604412
• 21440629009920 is a Harshad number.
• The number of decimal digits it has is: 14
• The sum of 21440629009920's digits is 48
• More coming soon!