20913984

Names of 20913984

• Cardinal: 20913984 can be written as Twenty million, nine hundred thirteen thousand, nine hundred eighty-four.

Scientific notation

• Scientific notation: 2.0913984 × 10⁷

Factors of 20913984

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 44

Divisors of 20913984

• Number of divisors d(n): 336
• Complete list of divisors:
  1 2 3 4 6 7 8 9 12 13 14 16 18 19 21 24 26 27 28 32 36 38 39 42 48 49 52 54 56 57 63 64 72 76 78 84 91 96 98 104 108 112 114 117 126 133 144 147 152 156 168 171 182 189 192 196 208 216 224 228 234 247 252 266 273 288 294 304 312 336 342 351 364 378 392 399 416 432 441 448 456 468 494 504 513 532 546 576 588 608 624 637 672 684 702 728 741 756 784 798 819 832 864 882 912 931 936 988 1008 1026 1064 1092 1176 1197 1216 1248 1274 1323 1344 1368 1404 1456 1482 1512 1568 1596 1638 1728 1729 1764 1824 1862 1872 1911 1976 2016 2052 2128 2184 2223 2352 2394 2457 2496 2548 2646 2736 2793 2808 2912 2964 3024 3136 3192 3276 3458 3528 3591 3648 3724 3744 3822 3952 4032 4104 4256 4368 4446 4704 4788 4914 5096 5187 5292 5472 5586 5616 5733 5824 5928 6048 6384 6552 6669 6916 7056 7182 7448 7488 7644 7904 8208 8379 8512 8736 8892 9408 9576 9828 10192 10374 10584 10944 11172 11232 11466 11856 12096 12103 12768 13104 13338 13832 14112 14364 14896 15288 15561 15808 16416 16758 17199 17472 17784 19152 19656 20384 20748 21168 22344 22464 22932 23712 24206 25137 25536 26208 26676 27664 28224 28728 29792 30576 31122 32832 33516 34398 35568 36309 38304 39312 40768 41496 42336 44688 45864 46683 47424 48412 50274 52416 53352 55328 57456 59584 61152 62244 67032 68796 71136 72618 76608 78624 82992 84672 89376 91728 93366 96824 100548 106704 108927 110656 114912 122304 124488 134064 137592 142272 145236 157248 165984 178752 183456 186732 193648 201096 213408 217854 229824 248976 268128 275184 290472 326781 331968 366912 373464 387296 402192 426816 435708 497952 536256 550368 580944 653562 746928 774592 804384 871416 995904 1100736 1161888 1307124 1493856 1608768 1742832 2323776 2614248 2987712 3485664 5228496 6971328 10456992 20913984
• Sum of all divisors σ(n): 81076800
• Sum of proper divisors (its aliquot sum) s(n): 60162816
• 20913984 is an abundant number, because the sum of its proper divisors (60162816) is greater than itself. Its abundance is 39248832

Bases of 20913984

• Binary: 1001111110001111101000000₂
• Hexadecimal: 0x13F1F40
• Base-36: CG9C0

Squares and roots of 20913984

• 20913984 squared (20913984²) is 437394726752256
• 20913984 cubed (20913984³) is 9147666316981053947904
• The square root of 20913984 is 4573.1809498423
• The cube root of 20913984 is 275.5152170497

Scales and comparisons

• 20,913,984 seconds is equal to 34 weeks, 4 days, 1 hour, 26 minutes, 24 seconds.
• To count from 1 to 20,913,984 would take you about fifty-one weeks!

  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 20913984 cubic inches would be around 23 feet tall.

Recreational maths with 20913984

• 20913984 backwards is 48931902
• 20913984 is a Harshad number.
• The number of decimal digits it has is: 8
• The sum of 20913984's digits is 36
• More coming soon!