20721132936

Names of 20721132936

• Cardinal: 20721132936 can be written as Twenty billion, seven hundred twenty-one million, one hundred thirty-two thousand, nine hundred thirty-six.

Scientific notation

• Scientific notation: 2.0721132936 × 10¹⁰

Factors of 20721132936

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 138

Divisors of 20721132936

• Number of divisors d(n): 432
• Complete list of divisors:
  1 2 3 4 6 7 8 9 12 14 18 19 21 24 27 28 36 38 42 49 54 56 57 63 72 76 81 84 98 107 108 114 126 133 147 152 162 168 171 189 196 214 216 228 243 252 266 294 321 324 342 378 392 399 428 441 456 486 504 513 532 567 588 642 648 684 749 756 798 856 882 931 963 972 1026 1064 1134 1176 1197 1284 1323 1368 1498 1512 1539 1596 1701 1764 1862 1926 1944 2033 2052 2247 2268 2394 2568 2646 2793 2889 2996 3078 3192 3402 3528 3591 3724 3852 3969 4066 4104 4494 4536 4617 4788 5243 5292 5586 5778 5992 6099 6156 6741 6804 7182 7448 7704 7938 8132 8379 8667 8988 9234 9576 10486 10584 10773 11172 11449 11556 11907 12198 12312 13482 13608 14231 14364 15729 15876 16264 16758 17334 17976 18297 18468 20223 20972 21546 22344 22898 23112 23814 24396 25137 26001 26964 28462 28728 31458 31752 32319 33516 34347 34668 36594 36936 40446 41944 42693 43092 45796 47187 47628 48792 50274 52002 53928 54891 56924 60669 62916 64638 67032 68694 69336 73188 75411 80143 80892 85386 86184 91592 94374 95256 99617 100548 103041 104004 109782 113848 121338 125832 128079 129276 137388 141561 146376 150822 160286 161784 164673 170772 182007 188748 199234 201096 206082 208008 217531 219564 226233 240429 242676 256158 258552 274776 283122 298851 301644 309123 320572 329346 341544 364014 377496 384237 398468 412164 424683 435062 439128 452466 480858 485352 494019 512316 561001 566244 597702 603288 618246 641144 652593 658692 721287 728028 768474 796936 824328 849366 870124 896553 904932 927369 961716 988038 1024632 1122002 1132488 1152711 1195404 1236492 1274049 1305186 1317384 1442574 1456056 1522717 1536948 1683003 1698732 1740248 1793106 1809864 1854738 1923432 1957779 1976076 2163861 2244004 2305422 2390808 2472984 2548098 2610372 2689659 2782107 2885148 3045434 3073896 3366006 3397464 3458133 3586212 3709476 3915558 3952152 4327722 4488008 4568151 4610844 5049009 5096196 5220744 5379318 5564214 5770296 5873337 6090868 6491583 6732012 6916266 7172424 7418952 7831116 8068977 8655444 9136302 9221688 10098018 10192392 10659019 10758636 11128428 11746674 12181736 12983166 13464024 13704453 13832532 15147027 15662232 16137954 17310888 17620011 18272604 19474749 20196036 21318038 21517272 22256856 23493348 24206931 25966332 27408906 27665064 30294054 31977057 32275908 35240022 36545208 38949498 40392072 41113359 42636076 45441081 46986696 48413862 51932664 52860033 54817812 60588108 63954114 64551816 70480044 77898996 82226718 85272152 90882162 95931171 96827724 105720066 109635624 121176216 123340077 127908228 136323243 140960088 155797992 164453436 181764324 191862342 193655448 211440132 246680154 255816456 272646486 287793513 328906872 363528648 370020231 383724684 422880264 493360308 545292972 575587026 740040462 767449368 863380539 986720616 1090585944 1151174052 1480080924 1726761078 2302348104 2590141617 2960161848 3453522156 5180283234 6907044312 10360566468 20721132936
• Sum of all divisors σ(n): 71935390800
• Sum of proper divisors (its aliquot sum) s(n): 51214257864
• 20721132936 is an abundant number, because the sum of its proper divisors (51214257864) is greater than itself. Its abundance is 30493124928

Bases of 20721132936

• Binary: 10011010011000100110110010110001000₂
• Hexadecimal: 0x4D3136588
• Base-36: 9IOTSI0

Squares and roots of 20721132936

• 20721132936 squared (20721132936²) is 429365350151383980096
• 20721132936 cubed (20721132936³) is 8896936498599015175949994041856
• The square root of 20721132936 is 143948.3689938861
• The cube root of 20721132936 is 2746.6574456781

Scales and comparisons

• 20,721,132,936 seconds is equal to 658 years, 45 weeks, 22 hours, 15 minutes, 36 seconds.
• To count from 1 to 20,721,132,936 would take you about one thousand, three hundred seventeen 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 20721132936 cubic inches would be around 228.9 feet tall.

Recreational maths with 20721132936

• 20721132936 backwards is 63923112702
• 20721132936 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 20721132936's digits is 36
• More coming soon!