21431195136

Names of 21431195136

• Cardinal: 21431195136 can be written as Twenty-one billion, four hundred thirty-one million, one hundred ninety-five thousand, one hundred thirty-six.

Scientific notation

• Scientific notation: 2.1431195136 × 10¹⁰

Factors of 21431195136

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 16
• Sum of prime factors: 458

Divisors of 21431195136

• Number of divisors d(n): 400
• Complete list of divisors:
  1 2 3 4 6 8 9 12 13 16 18 24 26 27 32 36 39 48 52 54 64 72 78 81 96 104 108 117 127 128 144 156 162 192 208 216 234 254 256 288 312 313 324 351 381 384 416 432 468 508 512 576 624 626 648 702 762 768 832 864 936 939 1016 1053 1143 1152 1248 1252 1296 1404 1524 1536 1651 1664 1728 1872 1878 2032 2106 2286 2304 2496 2504 2592 2808 2817 3048 3302 3328 3429 3456 3744 3756 4064 4069 4212 4572 4608 4953 4992 5008 5184 5616 5634 6096 6604 6656 6858 6912 7488 7512 8128 8138 8424 8451 9144 9906 9984 10016 10287 10368 11232 11268 12192 12207 13208 13716 13824 14859 14976 15024 16256 16276 16848 16902 18288 19812 19968 20032 20574 20736 22464 22536 24384 24414 25353 26416 27432 29718 29952 30048 32512 32552 33696 33804 36576 36621 39624 39751 40064 41148 41472 44577 44928 45072 48768 48828 50706 52832 54864 59436 59904 60096 65024 65104 67392 67608 73152 73242 79248 79502 80128 82296 89154 89856 90144 97536 97656 101412 105664 109728 109863 118872 119253 120192 130208 133731 134784 135216 146304 146484 158496 159004 160256 164592 178308 179712 180288 195072 195312 202824 211328 219456 219726 237744 238506 240384 260416 267462 269568 270432 292608 292968 316992 318008 329184 329589 356616 357759 360576 390624 405648 422656 438912 439452 475488 477012 480768 516763 520832 534924 539136 540864 585216 585936 633984 636016 658368 659178 713232 715518 721152 781248 811296 845312 877824 878904 950976 954024 1033526 1041664 1069848 1073277 1081728 1171872 1267968 1272032 1316736 1318356 1426464 1431036 1442304 1550289 1562496 1622592 1755648 1757808 1901952 1908048 2067052 2083328 2139696 2146554 2163456 2343744 2535936 2544064 2633472 2636712 2852928 2862072 3100578 3124992 3219831 3245184 3515616 3803904 3816096 4134104 4279392 4293108 4326912 4650867 4687488 5088128 5266944 5273424 5705856 5724144 6201156 6249984 6439662 6490368 7031232 7607808 7632192 8268208 8558784 8586216 9301734 9374976 10176256 10546848 11411712 11448288 12402312 12879324 12980736 13952601 14062464 15264384 16536416 17117568 17172432 18603468 18749952 20352512 21093696 22823424 22896576 24804624 25758648 27905202 28124928 30528768 33072832 34235136 34344864 37206936 41857803 42187392 45793152 49609248 51517296 55810404 56249856 61057536 66145664 68470272 68689728 74413872 83715606 84374784 91586304 99218496 103034592 111620808 132291328 137379456 148827744 167431212 168749568 183172608 198436992 206069184 223241616 264582656 274758912 297655488 334862424 396873984 412138368 446483232 549517824 595310976 669724848 793747968 824276736 892966464 1190621952 1339449696 1648553472 1785932928 2381243904 2678899392 3571865856 5357798784 7143731712 10715597568 21431195136
• Sum of all divisors σ(n): 69651208704
• Sum of proper divisors (its aliquot sum) s(n): 48220013568
• 21431195136 is an abundant number, because the sum of its proper divisors (48220013568) is greater than itself. Its abundance is 26788818432

Bases of 21431195136

• Binary: 10011111101011001100001011000000000₂
• Hexadecimal: 0x4FD661600
• Base-36: 9UFKW00

Squares and roots of 21431195136

• 21431195136 squared (21431195136²) is 459296124957310058496
• 21431195136 cubed (21431195136³) is 9843264879168751533283350675456
• The square root of 21431195136 is 146393.9723349291
• The cube root of 21431195136 is 2777.6794782485

Scales and comparisons

• 21,431,195,136 seconds is equal to 681 years, 23 weeks, 1 day, 5 hours, 45 minutes, 36 seconds.
• To count from 1 to 21,431,195,136 would take you about one thousand, three hundred sixty-two 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 21431195136 cubic inches would be around 231.5 feet tall.

Recreational maths with 21431195136

• 21431195136 backwards is 63159113412
• 21431195136 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21431195136's digits is 36
• More coming soon!