21739385664

Names of 21739385664

• Cardinal: 21739385664 can be written as Twenty-one billion, seven hundred thirty-nine million, three hundred eighty-five thousand, six hundred sixty-four.

Scientific notation

• Scientific notation: 2.1739385664 × 10¹⁰

Factors of 21739385664

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 14038

Divisors of 21739385664

• Number of divisors d(n): 224
• Complete list of divisors:
  1 2 3 4 6 8 9 12 16 17 18 24 27 32 34 36 48 51 53 54 64 68 72 96 102 106 108 136 144 153 159 192 204 212 216 272 288 306 318 408 424 432 459 477 544 576 612 636 816 848 864 901 918 954 1088 1224 1272 1431 1632 1696 1728 1802 1836 1908 2448 2544 2703 2862 3264 3392 3604 3672 3816 4896 5088 5406 5724 7208 7344 7632 8109 9792 10176 10812 11448 13963 14416 14688 15264 16218 21624 22896 24327 27926 28832 29376 30528 32436 41889 43248 45792 48654 55852 57664 64872 83778 86496 91584 97308 111704 125667 129744 167556 172992 194616 223408 237371 251334 259488 335112 377001 389232 446816 474742 502668 518976 670224 712113 740039 754002 778464 893632 949484 1005336 1340448 1424226 1480078 1508004 1556928 1898968 2010672 2136339 2220117 2680896 2848452 2960156 3016008 3797936 4021344 4272678 4440234 5696904 5920312 6032016 6409017 6660351 7595872 8042688 8545356 8880468 11393808 11840624 12064032 12580663 12818034 13320702 15191744 17090712 17760936 19981053 22787616 23681248 24128064 25161326 25636068 26641404 34181424 35521872 37741989 39962106 45575232 47362496 50322652 51272136 53282808 68362848 71043744 75483978 79924212 100645304 102544272 106565616 113225967 136725696 142087488 150967956 159848424 201290608 205088544 213131232 226451934 301935912 319696848 339677901 402581216 410177088 426262464 452903868 603871824 639393696 679355802 805162432 905807736 1207743648 1278787392 1358711604 1811615472 2415487296 2717423208 3623230944 5434846416 7246461888 10869692832 21739385664
• Sum of all divisors σ(n): 68950880640
• Sum of proper divisors (its aliquot sum) s(n): 47211494976
• 21739385664 is an abundant number, because the sum of its proper divisors (47211494976) is greater than itself. Its abundance is 25472109312

Bases of 21739385664

• Binary: 10100001111110001001011001101000000₂
• Hexadecimal: 0x50FC4B340
• Base-36: 9ZJ2HC0

Squares and roots of 21739385664

• 21739385664 squared (21739385664²) is 472600889048128720896
• 21739385664 cubed (21739385664³) is 10274052992166544121073159634944
• The square root of 21739385664 is 147442.8216767435
• The cube root of 21739385664 is 2790.9309322619

Scales and comparisons

• 21,739,385,664 seconds is equal to 691 years, 12 weeks, 5 days, 6 hours, 14 minutes, 24 seconds.
• To count from 1 to 21,739,385,664 would take you about one thousand, three hundred eighty-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 21739385664 cubic inches would be around 232.6 feet tall.

Recreational maths with 21739385664

• 21739385664 backwards is 46658393712
• 21739385664 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21739385664's digits is 54
• More coming soon!