21690998784

Names of 21690998784

• Cardinal: 21690998784 can be written as Twenty-one billion, six hundred ninety million, nine hundred ninety-eight thousand, seven hundred eighty-four.

Scientific notation

• Scientific notation: 2.1690998784 × 10¹⁰

Factors of 21690998784

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 19
• Sum of prime factors: 139

Divisors of 21690998784

• Number of divisors d(n): 672
• Complete list of divisors:
  1 2 3 4 6 7 8 9 12 13 14 16 18 21 24 26 28 32 36 39 42 48 52 53 56 61 63 64 72 78 84 91 96 104 106 112 117 122 126 128 144 156 159 168 182 183 192 208 212 224 234 244 252 256 273 288 312 318 336 364 366 371 384 416 424 427 448 468 477 488 504 512 546 549 576 624 636 672 689 728 732 742 768 793 819 832 848 854 896 936 954 976 1008 1024 1092 1098 1113 1152 1248 1272 1281 1344 1378 1456 1464 1484 1536 1586 1638 1664 1696 1708 1792 1872 1908 1952 2016 2048 2067 2184 2196 2226 2304 2379 2496 2544 2562 2688 2756 2912 2928 2968 3072 3172 3233 3276 3328 3339 3392 3416 3584 3744 3816 3843 3904 4032 4096 4134 4368 4392 4452 4608 4758 4823 4992 5088 5124 5376 5512 5551 5824 5856 5936 6144 6201 6344 6466 6552 6656 6678 6784 6832 7137 7168 7488 7632 7686 7808 8064 8192 8268 8736 8784 8904 9216 9516 9646 9699 9984 10176 10248 10752 11024 11102 11648 11712 11872 12288 12402 12688 12932 13104 13312 13356 13568 13664 14274 14336 14469 14976 15264 15372 15616 16128 16536 16653 17472 17568 17808 18432 19032 19292 19398 19968 20352 20496 21504 22048 22204 22631 23296 23424 23744 24576 24804 25376 25864 26208 26624 26712 27136 27328 28548 28672 28938 29097 29952 30528 30744 31232 32256 33072 33306 34944 35136 35616 36864 38064 38584 38796 39936 40704 40992 42029 43008 43407 44096 44408 45262 46592 46848 47488 49608 49959 50752 51728 52416 53248 53424 54272 54656 57096 57344 57876 58194 59904 61056 61488 62464 64512 66144 66612 67893 69888 70272 71232 73728 76128 77168 77592 79872 81408 81984 84058 86016 86814 88192 88816 90524 93184 93696 94976 99216 99918 101504 103456 104832 106496 106848 108544 109312 114192 115752 116388 119808 122112 122976 124928 126087 129024 132288 133224 135786 139776 140544 142464 152256 154336 155184 159744 162816 163968 168116 172032 173628 176384 177632 181048 186368 187392 189952 198432 199836 203008 203679 206912 209664 213696 217088 218624 228384 231504 232776 239616 244224 245952 249856 252174 258048 264576 266448 271572 279552 281088 284928 294203 304512 308672 310368 319488 325632 327936 336232 347256 352768 355264 362096 372736 374784 378261 379904 396864 399672 406016 407358 413824 419328 427392 434176 437248 456768 463008 465552 479232 488448 491904 499712 504348 516096 529152 532896 543144 559104 562176 569856 588406 609024 617344 620736 651264 655872 672464 694512 705536 710528 724192 745472 749568 756522 759808 793728 799344 812032 814716 827648 838656 854784 874496 882609 913536 926016 931104 958464 976896 983808 1008696 1058304 1065792 1086288 1118208 1124352 1139712 1176812 1218048 1234688 1241472 1302528 1311744 1344928 1389024 1411072 1421056 1448384 1499136 1513044 1519616 1587456 1598688 1624064 1629432 1655296 1677312 1709568 1748992 1765218 1827072 1852032 1862208 1953792 1967616 2017392 2116608 2131584 2172576 2236416 2248704 2279424 2353624 2436096 2469376 2482944 2623488 2647827 2689856 2778048 2822144 2842112 2896768 3026088 3039232 3174912 3197376 3248128 3258864 3310592 3354624 3419136 3497984 3530436 3654144 3704064 3724416 3907584 3935232 4034784 4233216 4263168 4345152 4497408 4558848 4707248 4872192 4938752 4965888 5246976 5295654 5379712 5556096 5644288 5684224 5793536 6052176 6349824 6394752 6496256 6517728 6621184 6709248 6838272 7060872 7308288 7408128 7448832 7870464 8069568 8466432 8526336 8690304 9117696 9414496 9744384 9877504 9931776 10493952 10591308 10759424 11112192 11368448 11587072 12104352 12699648 12789504 13035456 13242368 13676544 14121744 14616576 14816256 14897664 15740928 16139136 16932864 17052672 17380608 18828992 19488768 19755008 19863552 21182616 21518848 22224384 22736896 23174144 24208704 25399296 25579008 26070912 26484736 27353088 28243488 29233152 29632512 29795328 31481856 32278272 34105344 34761216 37657984 39510016 39727104 42365232 43037696 44448768 45473792 46348288 48417408 50798592 51158016 52141824 56486976 58466304 59265024 59590656 64556544 68210688 69522432 75315968 79454208 84730464 86075392 88897536 92696576 96834816 102316032 104283648 112973952 118530048 119181312 129113088 136421376 139044864 150631936 169460928 172150784 177795072 185393152 193669632 204632064 208567296 225947904 238362624 258226176 278089728 301263872 338921856 344301568 355590144 387339264 409264128 417134592 451895808 516452352 556179456 602527744 677843712 774678528 834269184 903791616 1032904704 1205055488 1355687424 1549357056 1668538368 1807583232 2410110976 2711374848 3098714112 3615166464 5422749696 7230332928 10845499392 21690998784
• Sum of all divisors σ(n): 79862013504
• Sum of proper divisors (its aliquot sum) s(n): 58171014720
• 21690998784 is an abundant number, because the sum of its proper divisors (58171014720) is greater than itself. Its abundance is 36480015936

Bases of 21690998784

• Binary: 10100001100111000100110000000000000₂
• Hexadecimal: 0x50CE26000
• Base-36: 9YQ9DS0

Squares and roots of 21690998784

• 21690998784 squared (21690998784²) is 470499428247489478656
• 21690998784 cubed (21690998784³) is 10205602525988989532580089954304
• The square root of 21690998784 is 147278.6433397593
• The cube root of 21690998784 is 2788.8587369861

Scales and comparisons

• 21,690,998,784 seconds is equal to 689 years, 36 weeks, 5 days, 5 hours, 26 minutes, 24 seconds.
• To count from 1 to 21,690,998,784 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 21690998784 cubic inches would be around 232.4 feet tall.

Recreational maths with 21690998784

• 21690998784 backwards is 48789909612
• 21690998784 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21690998784's digits is 63
• More coming soon!