21209997312

Names of 21209997312

• Cardinal: 21209997312 can be written as Twenty-one billion, two hundred nine million, nine hundred ninety-seven thousand, three hundred twelve.

Scientific notation

• Scientific notation: 2.1209997312 × 10¹⁰

Factors of 21209997312

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 20
• Sum of prime factors: 134

Divisors of 21209997312

• Number of divisors d(n): 672
• Complete list of divisors:
  1 2 3 4 6 7 8 9 12 14 16 18 19 21 24 27 28 32 36 38 42 48 49 54 56 57 63 64 72 76 84 96 98 103 108 112 114 126 128 133 144 147 152 168 171 189 192 196 206 216 224 228 252 256 266 288 294 304 309 336 342 378 384 392 399 412 432 441 448 456 504 512 513 532 576 588 608 618 672 684 721 756 768 784 798 824 864 882 896 912 927 931 1008 1024 1026 1064 1152 1176 1197 1216 1236 1323 1344 1368 1442 1512 1536 1568 1596 1648 1728 1764 1792 1824 1854 1862 1957 2016 2048 2052 2128 2163 2304 2352 2394 2432 2472 2646 2688 2736 2781 2793 2884 3024 3072 3136 3192 3296 3456 3528 3584 3591 3648 3708 3724 3914 4032 4096 4104 4256 4326 4608 4704 4788 4864 4944 5047 5292 5376 5472 5562 5586 5768 5871 6048 6144 6272 6384 6489 6592 6912 7056 7168 7182 7296 7416 7448 7828 8064 8192 8208 8379 8512 8652 9216 9408 9576 9728 9888 10094 10584 10752 10944 11124 11172 11536 11742 12096 12288 12544 12768 12978 13184 13699 13824 14112 14336 14364 14592 14832 14896 15141 15656 16128 16416 16758 17024 17304 17613 18432 18816 19152 19456 19467 19776 20188 21168 21504 21888 22248 22344 23072 23484 24192 24576 25088 25137 25536 25956 26368 27398 27648 28224 28672 28728 29184 29664 29792 30282 31312 32256 32832 33516 34048 34608 35226 36864 37632 38304 38912 38934 39552 40376 41097 42336 43008 43776 44496 44688 45423 46144 46968 48384 50176 50274 51072 51912 52736 52839 54796 55296 56448 57344 57456 58368 59328 59584 60564 62624 64512 65664 67032 68096 69216 70452 73728 75264 76608 77824 77868 79104 80752 82194 84672 86016 87552 88992 89376 90846 92288 93936 95893 96768 100352 100548 102144 103824 105472 105678 109592 110592 112896 114912 116736 118656 119168 121128 123291 125248 129024 131328 134064 136192 136269 138432 140904 150528 153216 155648 155736 158208 161504 164388 169344 172032 175104 177984 178752 181692 184576 187872 191786 193536 200704 201096 204288 207648 210944 211356 219184 221184 225792 229824 233472 237312 238336 242256 246582 250496 258048 262656 268128 272384 272538 276864 281808 287679 301056 306432 311472 316416 323008 328776 338688 350208 355968 357504 363384 369152 369873 375744 383572 387072 401408 402192 408576 415296 421888 422712 438368 451584 459648 466944 474624 476672 484512 493164 500992 516096 525312 536256 544768 545076 553728 563616 575358 602112 612864 622944 632832 646016 657552 677376 700416 711936 715008 726768 738304 739746 751488 767144 774144 804384 817152 830592 843776 845424 863037 876736 903168 919296 949248 953344 969024 986328 1001984 1050624 1072512 1089536 1090152 1107456 1127232 1150716 1204224 1225728 1245888 1265664 1292032 1315104 1354752 1400832 1423872 1430016 1453536 1476608 1479492 1502976 1534288 1548288 1608768 1634304 1661184 1690848 1726074 1753472 1806336 1838592 1898496 1906688 1938048 1972656 2003968 2101248 2145024 2180304 2214912 2254464 2301432 2451456 2491776 2531328 2584064 2589111 2630208 2709504 2847744 2860032 2907072 2953216 2958984 3005952 3068576 3217536 3268608 3322368 3381696 3452148 3506944 3612672 3677184 3796992 3813376 3876096 3945312 4007936 4202496 4290048 4360608 4429824 4508928 4602864 4902912 4983552 5168128 5178222 5260416 5419008 5695488 5720064 5814144 5906432 5917968 6011904 6137152 6435072 6644736 6763392 6904296 7013888 7354368 7593984 7626752 7752192 7890624 8015872 8580096 8721216 8859648 9017856 9205728 9805824 9967104 10336256 10356444 10520832 10838016 11390976 11440128 11628288 11835936 12023808 12274304 12870144 13289472 13526784 13808592 14027776 14708736 15504384 15781248 16031744 17160192 17442432 17719296 18035712 18411456 19934208 20672512 20712888 21041664 22781952 22880256 23256576 23671872 24047616 24548608 25740288 26578944 27053568 27617184 28055552 29417472 31008768 31562496 34320384 34884864 36071424 36822912 39868416 41345024 41425776 42083328 46513152 47343744 48095232 49097216 51480576 53157888 54107136 55234368 56111104 62017536 63124992 68640768 69769728 72142848 73645824 79736832 82851552 84166656 93026304 94687488 98194432 102961152 108214272 110468736 112222208 124035072 126249984 139539456 144285696 147291648 159473664 165703104 168333312 186052608 189374976 196388864 205922304 216428544 220937472 252499968 279078912 294583296 331406208 336666624 372105216 378749952 392777728 432857088 441874944 504999936 558157824 589166592 662812416 757499904 785555456 883749888 1009999872 1116315648 1178333184 1325624832 1514999808 1767499776 2356666368 2651249664 3029999616 3534999552 5302499328 7069999104 10604998656 21209997312
• Sum of all divisors σ(n): 77694739200
• Sum of proper divisors (its aliquot sum) s(n): 56484741888
• 21209997312 is an abundant number, because the sum of its proper divisors (56484741888) is greater than itself. Its abundance is 35274744576

Bases of 21209997312

• Binary: 10011110000001101101110000000000000₂
• Hexadecimal: 0x4F036E000
• Base-36: 9QRVUO0

Squares and roots of 21209997312

• 21209997312 squared (21209997312²) is 449863985975047225344
• 21209997312 cubed (21209997312³) is 9541613933296357348619298275328
• The square root of 21209997312 is 145636.5246495535
• The cube root of 21209997312 is 2768.0899878303

Scales and comparisons

• 21,209,997,312 seconds is equal to 674 years, 21 weeks, 3 days, 1 hour, 55 minutes, 12 seconds.
• To count from 1 to 21,209,997,312 would take you about one thousand, three hundred forty-eight 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 21209997312 cubic inches would be around 230.7 feet tall.

Recreational maths with 21209997312

• 21209997312 backwards is 21379990212
• The number of decimal digits it has is: 11
• The sum of 21209997312's digits is 45
• More coming soon!