21388101336

Names of 21388101336

• Cardinal: 21388101336 can be written as Twenty-one billion, three hundred eighty-eight million, one hundred one thousand, three hundred thirty-six.

Scientific notation

• Scientific notation: 2.1388101336 × 10¹⁰

Factors of 21388101336

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 185

Divisors of 21388101336

• Number of divisors d(n): 432
• Complete list of divisors:
  1 2 3 4 6 7 8 9 12 14 17 18 19 21 24 28 34 36 38 42 49 51 56 57 63 68 72 76 84 98 102 114 119 126 133 136 137 147 152 153 168 171 196 204 228 238 252 266 274 294 306 323 342 357 392 399 408 411 441 456 476 504 532 548 588 612 646 684 714 798 822 833 882 931 952 959 969 1064 1071 1096 1176 1197 1224 1233 1292 1368 1428 1596 1644 1666 1764 1862 1918 1938 2142 2261 2329 2394 2466 2499 2584 2603 2793 2856 2877 2907 3192 3288 3332 3528 3724 3836 3876 4284 4522 4658 4788 4932 4998 5206 5586 5754 5814 6664 6713 6783 6987 7448 7497 7672 7752 7809 8379 8568 8631 9044 9316 9576 9864 9996 10412 11172 11508 11628 13426 13566 13974 14994 15618 15827 16303 16758 17262 18088 18221 18632 18769 19992 20139 20349 20824 20961 22344 23016 23256 23427 26852 27132 27948 29988 31236 31654 32606 33516 34524 36442 37538 40278 40698 41922 44251 46854 47481 48909 53704 54264 54663 55896 56307 59976 60417 62472 63308 65212 67032 69048 72884 75076 80556 81396 83844 88502 93708 94962 97818 109326 112614 114121 120834 126616 127547 130424 131383 132753 142443 145768 146727 150152 161112 162792 163989 167688 168921 177004 187416 189924 195636 218652 225228 228242 241668 255094 262766 265506 284886 293454 309757 319073 327978 337842 342363 354008 356611 379848 382641 391272 394149 398259 437304 450456 456484 483336 510188 525532 531012 569772 586908 619514 638146 655956 675684 684726 713222 765282 788298 796518 912968 919681 929271 957219 1020376 1027089 1051064 1062024 1069833 1139544 1147923 1173816 1182447 1239028 1276292 1311912 1351368 1369452 1426444 1530564 1576596 1593036 1839362 1858542 1914438 2054178 2139666 2168299 2233511 2295846 2364894 2478056 2496277 2552584 2738904 2759043 2787813 2852888 2871657 3061128 3153192 3186072 3209499 3678724 3717084 3828876 4108356 4279332 4336598 4467022 4591692 4729788 4992554 5518086 5575626 5743314 6062387 6418998 6504897 6700533 7357448 7434168 7488831 7657752 8216712 8277129 8558664 8673196 8934044 9183384 9459576 9985108 11036172 11151252 11486628 12124774 12837996 13009794 13401066 14977662 15634577 16554258 17346392 17473939 17868088 18187161 19514691 19970216 20101599 22072344 22302504 22466493 22973256 24249548 25675992 26019588 26802132 29955324 31269154 33108516 34947878 36374322 39029382 40203198 42436709 44932986 46903731 48499096 52039176 52421817 53604264 54561483 59910648 62538308 66217032 69895756 72748644 78058764 80406396 84873418 89865972 93807462 104843634 109122966 125076616 127310127 139791512 140711193 145497288 156117528 157265451 160812792 169746836 179731944 187614924 209687268 218245932 254620254 281422386 297056963 314530902 339493672 375229848 381930381 419374536 436491864 509240508 562844772 594113926 629061804 763860762 891170889 1018481016 1125689544 1188227852 1258123608 1527721524 1782341778 2376455704 2673512667 3055443048 3564683556 5347025334 7129367112 10694050668 21388101336
• Sum of all divisors σ(n): 75654469800
• Sum of proper divisors (its aliquot sum) s(n): 54266368464
• 21388101336 is an abundant number, because the sum of its proper divisors (54266368464) is greater than itself. Its abundance is 32878267128

Bases of 21388101336

• Binary: 10011111010110101001000011011011000₂
• Hexadecimal: 0x4FAD486D8
• Base-36: 9TPX8M0

Squares and roots of 21388101336

• 21388101336 squared (21388101336²) is 457450878759004984896
• 21388101336 cubed (21388101336³) is 9784005751139848539484797421056
• The square root of 21388101336 is 146246.7139323137
• The cube root of 21388101336 is 2775.8164450355

Scales and comparisons

• 21,388,101,336 seconds is equal to 680 years, 3 weeks, 6 days, 11 hours, 15 minutes, 36 seconds.
• To count from 1 to 21,388,101,336 would take you about one thousand, three hundred sixty 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 21388101336 cubic inches would be around 231.3 feet tall.

Recreational maths with 21388101336

• 21388101336 backwards is 63310188312
• 21388101336 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21388101336's digits is 36
• More coming soon!