21208226988
21,208,226,988 is an even composite number composed of seven prime numbers multiplied together.
21208226988 is an even composite number. It is composed of seven distinct prime numbers multiplied together. It has a total of two hundred eighty-eight divisors.
Prime factorization of 21208226988:
22 × 3 × 13 × 17 × 292 × 37 × 257
(2 × 2 × 3 × 13 × 17 × 29 × 29 × 37 × 257)See below for interesting mathematical facts about the number 21208226988 from the Numbermatics database.
Names of 21208226988
- Cardinal: 21208226988 can be written as Twenty-one billion, two hundred eight million, two hundred twenty-six thousand, nine hundred eighty-eight.
Scientific notation
- Scientific notation: 2.1208226988 × 1010
Factors of 21208226988
Divisors of 21208226988
- Number of divisors d(n): 288
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Complete list of divisors:
1 2 3 4 6 12 13 17 26 29 34 37 39 51 52 58 68 74 78 87 102 111 116 148 156 174 204 221 222 257 348 377 442 444 481 493 514 629 663 754 771 841 884 962 986 1028 1073 1131 1258 1326 1443 1479 1508 1542 1682 1887 1924 1972 2146 2262 2516 2523 2652 2886 2958 3084 3219 3341 3364 3774 4292 4369 4524 5046 5772 5916 6409 6438 6682 7453 7548 8177 8738 9509 10023 10092 10933 12818 12876 13107 13364 13949 14297 14906 16354 17476 18241 19018 19227 20046 21866 22359 24531 25636 26214 27898 28527 28594 29812 31117 32708 32799 36482 38036 38454 40092 41847 42891 43732 44718 49062 52428 54723 55796 56797 57054 57188 62234 65598 72964 76908 83694 85782 89436 93351 96889 98124 109446 113594 114108 123617 124468 126701 131196 161653 167388 170391 171564 185861 186702 193778 216137 218892 227188 237133 247234 253402 275761 290667 323306 340782 370851 371722 373404 380103 387556 404521 432274 474266 484959 494468 506804 528989 551522 557583 581334 646612 648411 681564 711399 741702 743444 760206 809042 827283 864548 948532 969918 1057978 1103044 1115166 1162668 1213563 1296822 1422798 1483404 1520412 1586967 1618084 1647113 1654566 1939836 2101489 2115956 2230332 2427126 2593644 2809781 2845596 3173934 3294226 3309132 3584893 3674329 4202978 4687937 4854252 4941339 5619562 6304467 6347868 6588452 6876857 7169786 7348658 7997069 8405956 8429343 9375874 9882678 10754679 11022987 11239124 12608934 13753714 14063811 14339572 14697316 15994138 16858686 18751748 19765356 20630571 21509358 22045974 23991207 25217868 27507428 28127622 31988276 33717372 41261142 43018716 44091948 47766277 47982414 56255244 60943181 82522284 95532554 95964828 103961897 121886362 135950173 143298831 182829543 191065108 207923794 243772724 271900346 286597662 311885691 365659086 407850519 415847588 543800692 573195324 623771382 731318172 815701038 1247542764 1631402076 1767352249 3534704498 5302056747 7069408996 10604113494 21208226988
- Sum of all divisors σ(n): 60253187904
- Sum of proper divisors (its aliquot sum) s(n): 39044960916
- 21208226988 is an abundant number, because the sum of its proper divisors (39044960916) is greater than itself. Its abundance is 17836733928
Bases of 21208226988
- Binary: 100111100000001101111011100101011002
- Hexadecimal: 0x4F01BDCAC
- Base-36: 9QQTWOC
Squares and roots of 21208226988
- 21208226988 squared (212082269882) is 449788891974531552144
- 21208226988 cubed (212082269883) is 9539224917676876672837910062272
-
The
square root of 21208226988 is 145630.4466380571 -
The
cube root of 21208226988 is 2768.0129714371
Scales and comparisons
How big is 21208226988?- 21,208,226,988 seconds is equal to 674 years, 18 weeks, 3 days, 14 hours, 9 minutes, 48 seconds.
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To count from 1 to 21,208,226,988 would take you about one thousand, three hundred forty-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 21208226988 cubic inches would be around 230.7 feet tall.
Recreational maths with 21208226988
- 21208226988 backwards is 88962280212
- The number of decimal digits it has is: 11
- The sum of 21208226988's digits is 48
- More coming soon!
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