21687148032

Names of 21687148032

• Cardinal: 21687148032 can be written as Twenty-one billion, six hundred eighty-seven million, one hundred forty-eight thousand and thirty-two.

Scientific notation

• Scientific notation: 2.1687148032 × 10¹⁰

Factors of 21687148032

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 14
• Sum of prime factors: 473

Divisors of 21687148032

• Number of divisors d(n): 320
• Complete list of divisors:
  1 2 3 4 6 8 11 12 16 22 24 32 33 37 44 48 64 66 74 88 96 111 113 128 132 148 176 192 222 226 256 264 296 307 339 352 384 407 444 452 512 528 592 614 678 704 768 814 888 904 921 1056 1184 1221 1228 1243 1356 1408 1536 1628 1776 1808 1842 2112 2368 2442 2456 2486 2712 2816 3256 3377 3552 3616 3684 3729 4181 4224 4736 4884 4912 4972 5424 5632 6512 6754 7104 7232 7368 7458 8362 8448 9472 9768 9824 9944 10131 10848 11359 12543 13024 13508 14208 14464 14736 14916 16724 16896 18944 19536 19648 19888 20262 21696 22718 25086 26048 27016 28416 28928 29472 29832 33448 34077 34691 39072 39296 39776 40524 43392 45436 45991 50172 52096 54032 56832 57856 58944 59664 66896 68154 69382 78144 78592 79552 81048 86784 90872 91982 100344 104073 104192 108064 117888 119328 124949 133792 136308 137973 138764 156288 157184 159104 162096 173568 181744 183964 200688 208146 208384 216128 235776 238656 249898 267584 272616 275946 277528 312576 318208 324192 363488 367928 374847 381601 401376 416292 432256 471552 477312 499796 535168 545232 551892 555056 625152 636416 648384 726976 735856 749694 763202 802752 832584 864512 954624 999592 1070336 1090464 1103784 1110112 1144803 1283567 1296768 1453952 1471712 1499388 1526404 1605504 1665168 1729024 1909248 1999184 2140672 2180928 2207568 2220224 2289606 2567134 2593536 2907904 2943424 2998776 3052808 3211008 3330336 3850701 3998368 4361856 4415136 4440448 4579212 5134268 5187072 5815808 5886848 5997552 6105616 6422016 6660672 7701402 7996736 8723712 8830272 8880896 9158424 10268536 11773696 11995104 12211232 13321344 14119237 15402804 15993472 17447424 17660544 17761792 18316848 20537072 23547392 23990208 24422464 26642688 28238474 30805608 31986944 35321088 36633696 41074144 42357711 47980416 48844928 53285376 56476948 61611216 63973888 70642176 73267392 82148288 84715422 95960832 97689856 112953896 123222432 146534784 164296576 169430844 191921664 195379712 225907792 246444864 293069568 328593152 338861688 451815584 492889728 586139136 657186304 677723376 903631168 985779456 1355446752 1807262336 1971558912 2710893504 3614524672 5421787008 7229049344 10843574016 21687148032
• Sum of all divisors σ(n): 65517306624
• Sum of proper divisors (its aliquot sum) s(n): 43830158592
• 21687148032 is an abundant number, because the sum of its proper divisors (43830158592) is greater than itself. Its abundance is 22143010560

Bases of 21687148032

• Binary: 10100001100101001111001111000000000₂
• Hexadecimal: 0x50CA79E00
• Base-36: 9YNYUIO

Squares and roots of 21687148032

• 21687148032 squared (21687148032²) is 470332389761881473024
• 21687148032 cubed (21687148032³) is 10200168161010244736309702688768
• The square root of 21687148032 is 147265.5697439153
• The cube root of 21687148032 is 2788.6936940415

Scales and comparisons

• 21,687,148,032 seconds is equal to 689 years, 30 weeks, 2 days, 15 hours, 47 minutes, 12 seconds.
• To count from 1 to 21,687,148,032 would take you about one thousand, three hundred seventy-nine 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 21687148032 cubic inches would be around 232.4 feet tall.

Recreational maths with 21687148032

• 21687148032 backwards is 23084178612
• The number of decimal digits it has is: 11
• The sum of 21687148032's digits is 42
• More coming soon!