21328391760
21,328,391,760 is an even composite number composed of seven prime numbers multiplied together.
21328391760 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 21328391760:
24 × 3 × 5 × 13 × 17 × 379 × 1061
(2 × 2 × 2 × 2 × 3 × 5 × 13 × 17 × 379 × 1061)See below for interesting mathematical facts about the number 21328391760 from the Numbermatics database.
Names of 21328391760
- Cardinal: 21328391760 can be written as Twenty-one billion, three hundred twenty-eight million, three hundred ninety-one thousand, seven hundred sixty.
Scientific notation
- Scientific notation: 2.132839176 × 1010
Factors of 21328391760
Divisors of 21328391760
- Number of divisors d(n): 320
-
Complete list of divisors:
1 2 3 4 5 6 8 10 12 13 15 16 17 20 24 26 30 34 39 40 48 51 52 60 65 68 78 80 85 102 104 120 130 136 156 170 195 204 208 221 240 255 260 272 312 340 379 390 408 442 510 520 624 663 680 758 780 816 884 1020 1040 1061 1105 1137 1326 1360 1516 1560 1768 1895 2040 2122 2210 2274 2652 3032 3120 3183 3315 3536 3790 4080 4244 4420 4548 4927 5304 5305 5685 6064 6366 6443 6630 7580 8488 8840 9096 9854 10608 10610 11370 12732 12886 13260 13793 14781 15160 15915 16976 17680 18037 18192 19329 19708 21220 22740 24635 25464 25772 26520 27586 29562 30320 31830 32215 36074 38658 39416 41379 42440 45480 49270 50928 51544 53040 54111 55172 59124 63660 64430 68965 72148 73905 77316 78832 82758 83759 84880 90185 90960 96645 98540 103088 108222 110344 118248 127320 128860 137930 144296 147810 154632 165516 167518 180370 193290 197080 206895 216444 220688 234481 236496 251277 254640 257720 270555 275860 288592 295620 309264 331032 335036 360740 386580 394160 402119 413790 418795 432888 468962 502554 515440 541110 551720 591240 662064 670072 703443 721480 773160 804238 827580 837590 865776 937924 1005108 1082220 1103440 1172405 1182480 1206357 1256385 1340144 1406886 1442960 1546320 1608476 1655160 1675180 1875848 2010216 2010595 2164440 2344810 2412714 2512770 2813772 3216952 3310320 3350360 3517215 3751696 4020432 4021190 4328880 4689620 4825428 5025540 5227547 5627544 6031785 6433904 6700720 6836023 7034430 8042380 9379240 9650856 10051080 10455094 11255088 12063570 13672046 14068860 15682641 16084760 18758480 19301712 20102160 20508069 20910188 24127140 26137735 27344092 28137720 31365282 32169520 34180115 41016138 41820376 48254280 52275470 54688184 56275440 62730564 68360230 78413205 82032276 83640752 88868299 96508560 102540345 104550940 109376368 125461128 136720460 156826410 164064552 177736598 205080690 209101880 250922256 266604897 273440920 313652820 328129104 355473196 410161380 418203760 444341495 533209794 546881840 627305640 710946392 820322760 888682990 1066419588 1254611280 1333024485 1421892784 1640645520 1777365980 2132839176 2666048970 3554731960 4265678352 5332097940 7109463920 10664195880 21328391760
- Sum of all divisors σ(n): 75662657280
- Sum of proper divisors (its aliquot sum) s(n): 54334265520
- 21328391760 is an abundant number, because the sum of its proper divisors (54334265520) is greater than itself. Its abundance is 33005873760
Bases of 21328391760
- Binary: 100111101110100010101101110010100002
- Hexadecimal: 0x4F7456E50
- Base-36: 9SQDGEO
Squares and roots of 21328391760
- 21328391760 squared (213283917602) is 454900295068035897600
- 21328391760 cubed (213283917603) is 9702291704950665477756043776000
-
The
square root of 21328391760 is 146042.4313684211 -
The
cube root of 21328391760 is 2773.2309373919
Scales and comparisons
How big is 21328391760?- 21,328,391,760 seconds is equal to 678 years, 9 weeks, 1 day, 9 hours, 16 minutes.
-
To count from 1 to 21,328,391,760 would take you about one thousand, three hundred fifty-six 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 21328391760 cubic inches would be around 231.1 feet tall.
Recreational maths with 21328391760
- 21328391760 backwards is 06719382312
- The number of decimal digits it has is: 11
- The sum of 21328391760's digits is 42
- More coming soon!
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