21356706800

Names of 21356706800

• Cardinal: 21356706800 can be written as Twenty-one billion, three hundred fifty-six million, seven hundred six thousand, eight hundred.

Scientific notation

• Scientific notation: 2.13567068 × 10¹⁰

Factors of 21356706800

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 550

Divisors of 21356706800

• Number of divisors d(n): 480
• Complete list of divisors:
  1 2 4 5 8 10 11 13 16 19 20 22 25 26 38 40 43 44 50 52 55 65 76 80 86 88 95 100 104 110 130 143 152 172 176 190 200 208 209 215 220 247 260 275 286 304 325 344 380 400 418 430 440 457 473 475 494 520 550 559 572 650 688 715 760 817 836 860 880 914 946 950 988 1040 1045 1075 1100 1118 1144 1235 1300 1430 1520 1634 1672 1720 1828 1892 1900 1976 2090 2150 2200 2236 2285 2288 2365 2470 2600 2717 2795 2860 3268 3344 3440 3575 3656 3784 3800 3952 4085 4180 4300 4400 4472 4570 4730 4940 5027 5200 5225 5434 5590 5720 5941 6149 6175 6536 7150 7312 7568 7600 8170 8360 8600 8683 8944 8987 9140 9460 9880 10054 10450 10621 10868 11180 11425 11440 11825 11882 12298 12350 13072 13585 13975 14300 16340 16720 17200 17366 17974 18280 18920 19651 19760 20108 20425 20900 21242 21736 22360 22850 23650 23764 24596 24700 25135 27170 27950 28600 29705 30745 32680 34732 35948 36560 37840 39302 40216 40850 41800 42484 43415 43472 44720 44935 45700 47300 47528 49192 49400 50270 53105 54340 55900 57200 59410 61490 65351 65360 67925 69464 71896 78604 80432 81700 83600 84968 86830 89870 91400 94600 95056 95513 98255 98384 98800 100540 106210 108680 111800 112879 116831 118820 122980 125675 130702 135850 138928 143792 148525 153725 157208 163400 169936 173660 179740 182800 189200 191026 196510 201080 212420 216161 217075 217360 223600 224675 225758 233662 237640 245960 251350 255463 261404 265525 271700 297050 307450 314416 326755 326800 347320 359480 373369 382052 393020 402160 424840 432322 434150 449350 451516 467324 475280 477565 491275 491920 502700 510926 522808 531050 543400 564395 584155 594100 614900 653510 694640 718960 746738 764104 786040 849680 864644 868300 898700 903032 934648 955130 982550 1005400 1021852 1045616 1062100 1080805 1086800 1128790 1168310 1188200 1229800 1241669 1277315 1307020 1493476 1528208 1572080 1633775 1729288 1736600 1797400 1806064 1866845 1869296 1910260 1965100 2010800 2043704 2124200 2161610 2257580 2336620 2376400 2387825 2459600 2483338 2554630 2614040 2810093 2821975 2920775 2986952 3267550 3458576 3473200 3594800 3733690 3820520 3930200 4087408 4107059 4248400 4323220 4515160 4673240 4775650 4853797 4966676 5109260 5228080 5404025 5620186 5643950 5841550 5973904 6208345 6386575 6535100 7467380 7641040 7860400 8214118 8646440 9030320 9334225 9346480 9551300 9707594 9933352 10218520 10808050 11240372 11287900 11683100 12416690 12773150 13070200 14050465 14934760 16428236 17292880 18668450 19102600 19415188 19866704 20437040 20535295 21616100 22480744 22575800 23366200 24268985 24833380 25546300 26140400 28100930 29869520 31041725 32856472 37336900 38205200 38830376 41070590 43232200 44961488 45151600 46732400 48537970 49666760 51092600 53391767 56201860 62083450 65712944 70252325 74673800 77660752 82141180 86464400 97075940 99333520 102185200 102676475 106783534 112403720 121344925 124166900 140504650 149347600 164282360 194151880 205352950 213567068 224807440 242689850 248333800 266958835 281009300 328564720 388303760 410705900 427134136 485379700 496667600 533917670 562018600 821411800 854268272 970759400 1067835340 1124037200 1334794175 1642823600 1941518800 2135670680 2669588350 4271341360 5339176700 10678353400 21356706800
• Sum of all divisors σ(n): 65070001920
• Sum of proper divisors (its aliquot sum) s(n): 43713295120
• 21356706800 is an abundant number, because the sum of its proper divisors (43713295120) is greater than itself. Its abundance is 22356588320

Bases of 21356706800

• Binary: 10011111000111101010111101111110000₂
• Hexadecimal: 0x4F8F57BF0
• Base-36: 9T78CFK

Squares and roots of 21356706800

• 21356706800 squared (21356706800²) is 456108925341166240000
• 21356706800 cubed (21356706800³) is 9740984587374377357738432000000
• The square root of 21356706800 is 146139.3403570715
• The cube root of 21356706800 is 2774.4576187487

Scales and comparisons

• 21,356,706,800 seconds is equal to 679 years, 4 weeks, 2 hours, 33 minutes, 20 seconds.
• To count from 1 to 21,356,706,800 would take you about one thousand, three hundred fifty-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 21356706800 cubic inches would be around 231.2 feet tall.

Recreational maths with 21356706800

• 21356706800 backwards is 00860765312
• 21356706800 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21356706800's digits is 38
• More coming soon!