21729689352

Names of 21729689352

• Cardinal: 21729689352 can be written as Twenty-one billion, seven hundred twenty-nine million, six hundred eighty-nine thousand, three hundred fifty-two.

Scientific notation

• Scientific notation: 2.1729689352 × 10¹⁰

Factors of 21729689352

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 349

Divisors of 21729689352

• Number of divisors d(n): 384
• Complete list of divisors:
  1 2 3 4 6 7 8 9 12 14 18 21 24 28 36 42 47 49 56 63 72 84 94 97 98 126 141 147 168 188 193 194 196 252 282 291 294 329 343 376 386 388 392 423 441 504 564 579 582 588 658 679 686 772 776 846 873 882 987 1029 1128 1158 1164 1176 1316 1351 1358 1372 1544 1692 1737 1746 1764 1974 2037 2058 2303 2316 2328 2632 2702 2716 2744 2961 3087 3384 3474 3492 3528 3948 4053 4074 4116 4559 4606 4632 4753 5404 5432 5922 6111 6174 6909 6948 6984 7896 8106 8148 8232 9071 9118 9212 9457 9506 10808 11844 12159 12222 12348 13677 13818 13896 14259 16121 16212 16296 18142 18236 18424 18721 18914 19012 20727 23688 24318 24444 24696 27213 27354 27636 28371 28518 31913 32242 32424 33271 36284 36472 37442 37828 38024 41031 41454 42777 48363 48636 48888 54426 54708 55272 56163 56742 57036 63497 63826 64484 66199 66542 72568 74884 75656 81639 82062 82908 85113 85554 95739 96726 97272 99813 108852 109416 112326 113484 114072 126994 127652 128968 131047 132398 133084 145089 149768 163278 164124 165816 168489 170226 171108 190491 191478 193452 198597 199626 217704 223391 224652 226968 253988 255304 262094 264796 266168 287217 290178 299439 326556 328248 336978 340452 342216 380982 382956 386904 393141 397194 399252 444479 446782 449304 507976 524188 529592 571473 574434 580356 595791 598878 653112 670173 673956 680904 761964 765912 786282 794388 798504 879887 888958 893564 917329 1048376 1142946 1148868 1160712 1179423 1191582 1197756 1333437 1340346 1347912 1523928 1563737 1572564 1588776 1759774 1777916 1787128 1834658 2010519 2285892 2297736 2358846 2383164 2395512 2639661 2666874 2680692 2751987 3111353 3127474 3145128 3519548 3555832 3669316 4000311 4021038 4571784 4691211 4717692 4766328 5279322 5333748 5361384 5503974 6159209 6222706 6254948 6421303 7039096 7338632 7918983 8000622 8042076 8255961 9334059 9382422 9435384 10558644 10667496 11007948 12318418 12445412 12509896 12842606 14073633 15837966 16001244 16084152 16511922 18477627 18668118 18764844 19263909 21117288 22015896 24636836 24890824 25685212 28002177 28147266 31675932 32002488 33023844 36955254 37336236 37529688 38527818 43114463 49273672 51370424 55432881 56004354 56294532 57791727 63351864 66047688 73910508 74672472 77055636 86228926 110865762 112008708 112589064 115583454 129343389 147821016 154111272 172457852 221731524 224017416 231166908 258686778 301801241 344915704 388030167 443463048 462333816 517373556 603602482 776060334 905403723 1034747112 1207204964 1552120668 1810807446 2414409928 2716211169 3104241336 3621614892 5432422338 7243229784 10864844676 21729689352
• Sum of all divisors σ(n): 71180928000
• Sum of proper divisors (its aliquot sum) s(n): 49451238648
• 21729689352 is an abundant number, because the sum of its proper divisors (49451238648) is greater than itself. Its abundance is 27721549296

Bases of 21729689352

• Binary: 10100001111001100001011111100001000₂
• Hexadecimal: 0x50F30BF08
• Base-36: 9ZDANM0

Squares and roots of 21729689352

• 21729689352 squared (21729689352²) is 472179399334422179904
• 21729689352 cubed (21729689352³) is 10260311665950949529732577182208
• The square root of 21729689352 is 147409.9364086425
• The cube root of 21729689352 is 2790.5159287913

Scales and comparisons

• 21,729,689,352 seconds is equal to 690 years, 48 weeks, 5 days, 49 minutes, 12 seconds.
• To count from 1 to 21,729,689,352 would take you about one thousand, three hundred eighty-one 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 21729689352 cubic inches would be around 232.5 feet tall.

Recreational maths with 21729689352

• 21729689352 backwards is 25398692712
• The number of decimal digits it has is: 11
• The sum of 21729689352's digits is 54
• More coming soon!