21428311794390
21,428,311,794,390 is an even composite number composed of seven prime numbers multiplied together.
What does the number 21428311794390 look like?
This visualization shows the relationship between its 7 prime factors (large circles) and 320 divisors.
21428311794390 is an even composite number. It is composed of seven distinct prime numbers multiplied together. It has a total of three hundred twenty divisors.
Prime factorization of 21428311794390:
2 × 34 × 5 × 67 × 97 × 631 × 6451
(2 × 3 × 3 × 3 × 3 × 5 × 67 × 97 × 631 × 6451)See below for interesting mathematical facts about the number 21428311794390 from the Numbermatics database.
Names of 21428311794390
- Cardinal: 21428311794390 can be written as Twenty-one trillion, four hundred twenty-eight billion, three hundred eleven million, seven hundred ninety-four thousand, three hundred ninety.
Scientific notation
- Scientific notation: 2.142831179439 × 1013
Factors of 21428311794390
Divisors of 21428311794390
- Number of divisors d(n): 320
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Complete list of divisors:
1 2 3 5 6 9 10 15 18 27 30 45 54 67 81 90 97 134 135 162 194 201 270 291 335 402 405 485 582 603 631 670 810 873 970 1005 1206 1262 1455 1746 1809 1893 2010 2619 2910 3015 3155 3618 3786 4365 5238 5427 5679 6030 6310 6451 6499 7857 8730 9045 9465 10854 11358 12902 12998 13095 15714 17037 18090 18930 19353 19497 26190 27135 28395 32255 32495 34074 38706 38994 39285 42277 51111 54270 56790 58059 58491 61207 64510 64990 78570 84554 85185 96765 97485 102222 116118 116982 122414 126831 170370 174177 175473 183621 193530 194970 211385 253662 255555 290295 292455 306035 348354 350946 367242 380493 422770 432217 511110 522531 526419 550863 580590 584910 612070 625747 634155 760986 864434 870885 877365 918105 1045062 1052838 1101726 1141479 1251494 1268310 1296651 1652589 1741770 1754730 1836210 1877241 1902465 2161085 2282958 2593302 2612655 2632095 2754315 3128735 3305178 3424437 3754482 3804930 3889953 4070581 4100869 4322170 4957767 5225310 5264190 5508630 5631723 5707395 6257470 6483255 6848874 7779906 8141162 8201738 8262945 9386205 9915534 11263446 11414790 11669859 12211743 12302607 12966510 16525890 16895169 17122185 18772410 19449765 20352905 20504345 23339718 24423486 24605214 24788835 28158615 33790338 34244370 35009577 36635229 36907821 38899530 40705810 41008690 41925049 49577670 50685507 56317230 58349295 61058715 61513035 70019154 73270458 73815642 83850098 84475845 101371014 109905687 110723463 116698590 122117430 123026070 125775147 168951690 175047885 183176145 184539105 209625245 219811374 221446926 251550294 253427535 272728927 329717061 332170389 350095770 366352290 369078210 377325441 394846357 419250490 506855070 545457854 549528435 553617315 628875735 659434122 664340778 754650882 789692714 818186781 1099056870 1107234630 1131976323 1184539071 1257751470 1363644635 1636373562 1648585305 1660851945 1886627205 1974231785 2263952646 2369078142 2454560343 2727289270 3297170610 3321703890 3395928969 3553617213 3773254410 3948463570 4090933905 4909120686 5659881615 5922695355 6791857938 7107234426 7363681029 8181867810 10660851639 11319763230 11845390710 12272801715 14727362058 16979644845 17768086065 21321703278 22091043087 24545603430 26454705919 31982554917 33959289690 35536172130 36818405145 44182086174 52909411838 53304258195 63965109834 73636810290 79364117757 106608516390 110455215435 132273529595 158728235514 159912774585 220910430870 238092353271 264547059190 319825549170 396820588785 476184706542 714277059813 793641177570 1190461766355 1428554119626 2142831179439 2380923532710 3571385299065 4285662358878 7142770598130 10714155897195 21428311794390
- Sum of all divisors σ(n): 59183998207488
- Sum of proper divisors (its aliquot sum) s(n): 37755686413098
- 21428311794390 is an abundant number, because the sum of its proper divisors (37755686413098) is greater than itself. Its abundance is 16327374618708
Bases of 21428311794390
- Binary: 1001101111101001010101110100110100010110101102
- Hexadecimal: 0x137D2AE9A2D6
- Base-36: 7LG13KVDI
Squares and roots of 21428311794390
- 21428311794390 squared (214283117943902) is 459172546357593581635472100
- 21428311794390 cubed (214283117943903) is 9839292490774511579897550106025781519000
-
The
square root of 21428311794390 is 4629072.4550810393 -
The
cube root of 21428311794390 is 27775.5490348771
Scales and comparisons
How big is 21428311794390?- 21,428,311,794,390 seconds is equal to 681,354 years, 1 week, 4 days, 23 hours, 46 minutes, 30 seconds.
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To count from 1 to 21,428,311,794,390 would take you about one million, seven hundred three thousand, three hundred eighty-five 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 21428311794390 cubic inches would be around 2314.6 feet tall.
Recreational maths with 21428311794390
- 21428311794390 backwards is 09349711382412
- 21428311794390 is a
Harshad number . - The number of decimal digits it has is: 14
- The sum of 21428311794390's digits is 54
- More coming soon!
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