28378442664
28,378,442,664 is an even composite number composed of five prime numbers multiplied together.
28378442664 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of three hundred twenty divisors.
Prime factorization of 28378442664:
23 × 34 × 113 × 13 × 2531
(2 × 2 × 2 × 3 × 3 × 3 × 3 × 11 × 11 × 11 × 13 × 2531)See below for interesting mathematical facts about the number 28378442664 from the Numbermatics database.
Names of 28378442664
- Cardinal: 28378442664 can be written as Twenty-eight billion, three hundred seventy-eight million, four hundred forty-two thousand, six hundred sixty-four.
Scientific notation
- Scientific notation: 2.8378442664 × 1010
Factors of 28378442664
Divisors of 28378442664
- Number of divisors d(n): 320
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Complete list of divisors:
1 2 3 4 6 8 9 11 12 13 18 22 24 26 27 33 36 39 44 52 54 66 72 78 81 88 99 104 108 117 121 132 143 156 162 198 216 234 242 264 286 297 312 324 351 363 396 429 468 484 572 594 648 702 726 792 858 891 936 968 1053 1089 1144 1188 1287 1331 1404 1452 1573 1716 1782 2106 2178 2376 2531 2574 2662 2808 2904 3146 3267 3432 3564 3861 3993 4212 4356 4719 5062 5148 5324 6292 6534 7128 7593 7722 7986 8424 8712 9438 9801 10124 10296 10648 11583 11979 12584 13068 14157 15186 15444 15972 17303 18876 19602 20248 22779 23166 23958 26136 27841 28314 30372 30888 31944 32903 34606 35937 37752 39204 42471 45558 46332 47916 51909 55682 56628 60744 65806 68337 69212 71874 78408 83523 84942 91116 92664 95832 98709 103818 107811 111364 113256 127413 131612 136674 138424 143748 155727 167046 169884 182232 197418 205011 207636 215622 222728 250569 254826 263224 273348 287496 296127 306251 311454 334092 339768 361933 394836 410022 415272 431244 467181 501138 509652 546696 592254 612502 622908 668184 723866 751707 789672 820044 862488 888381 918753 934362 1002276 1019304 1085799 1184508 1225004 1245816 1401543 1447732 1503414 1640088 1776762 1837506 1868724 2004552 2171598 2255121 2369016 2450008 2665143 2756259 2803086 2895464 3006828 3257397 3368761 3553524 3675012 3737448 3981263 4343196 4510242 5330286 5512518 5606172 6013656 6514794 6737522 7107048 7350024 7962526 8268777 8686392 9020484 9772191 10106283 10660572 11025036 11212344 11943789 13029588 13475044 15925052 16537554 18040968 19544382 20212566 21321144 22050072 23887578 24806331 26059176 26950088 29316573 30318849 31850104 33075108 35831367 39088764 40425132 43793893 47775156 49612662 58633146 60637698 66150216 71662734 78177528 80850264 87587786 90956547 95550312 99225324 107494101 117266292 121275396 131381679 143325468 175175572 181913094 198450648 214988202 234532584 242550792 262763358 272869641 286650936 322482303 350351144 363826188 394145037 429976404 525526716 545739282 644964606 727652376 788290074 859952808 1051053432 1091478564 1182435111 1289929212 1576580148 2182957128 2364870222 2579858424 3153160296 3547305333 4729740444 7094610666 9459480888 14189221332 28378442664
- Sum of all divisors σ(n): 94191007680
- Sum of proper divisors (its aliquot sum) s(n): 65812565016
- 28378442664 is an abundant number, because the sum of its proper divisors (65812565016) is greater than itself. Its abundance is 37434122352
Bases of 28378442664
- Binary: 110100110110111110010101011101010002
- Hexadecimal: 0x69B7CABA8
- Base-36: D1BSII0
Squares and roots of 28378442664
- 28378442664 squared (283784426642) is 805336008033935416896
- 28378442664 cubed (283784426643) is 22854181729245679594662072850944
-
The
square root of 28378442664 is 168459.0236941909 -
The
cube root of 28378442664 is 3050.2084481383
Scales and comparisons
How big is 28378442664?- 28,378,442,664 seconds is equal to 902 years, 18 weeks, 4 hours, 44 minutes, 24 seconds.
-
To count from 1 to 28,378,442,664 would take you about one thousand, eight hundred four 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 28378442664 cubic inches would be around 254.2 feet tall.
Recreational maths with 28378442664
- 28378442664 backwards is 46624487382
- 28378442664 is a
Harshad number . - The number of decimal digits it has is: 11
- The sum of 28378442664's digits is 54
- More coming soon!
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