21516011920
21,516,011,920 is an even composite number composed of six prime numbers multiplied together.
21516011920 is an even composite number. It is composed of six distinct prime numbers multiplied together. It has a total of three hundred twenty divisors.
Prime factorization of 21516011920:
24 × 5 × 133 × 17 × 19 × 379
(2 × 2 × 2 × 2 × 5 × 13 × 13 × 13 × 17 × 19 × 379)See below for interesting mathematical facts about the number 21516011920 from the Numbermatics database.
Names of 21516011920
- Cardinal: 21516011920 can be written as Twenty-one billion, five hundred sixteen million, eleven thousand, nine hundred twenty.
Scientific notation
- Scientific notation: 2.151601192 × 1010
Factors of 21516011920
Divisors of 21516011920
- Number of divisors d(n): 320
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Complete list of divisors:
1 2 4 5 8 10 13 16 17 19 20 26 34 38 40 52 65 68 76 80 85 95 104 130 136 152 169 170 190 208 221 247 260 272 304 323 338 340 379 380 442 494 520 646 676 680 758 760 845 884 988 1040 1105 1235 1292 1352 1360 1516 1520 1615 1690 1768 1895 1976 2197 2210 2470 2584 2704 2873 3032 3211 3230 3380 3536 3790 3952 4199 4394 4420 4927 4940 5168 5746 6064 6422 6443 6460 6760 7201 7580 8398 8788 8840 9854 9880 10985 11492 12844 12886 12920 13520 14365 14402 15160 16055 16796 17576 17680 19708 19760 20995 21970 22984 24635 25688 25772 25840 28730 28804 30320 32110 32215 33592 35152 36005 37349 39416 41743 41990 43940 45968 49270 51376 51544 54587 57460 57608 64051 64220 64430 67184 72010 74698 78832 83486 83759 83980 87880 93613 98540 103088 109174 114920 115216 122417 128102 128440 128860 144020 149396 166972 167518 167960 175760 186745 187226 197080 208715 218348 229840 244834 256204 256880 257720 272935 288040 298792 320255 333944 335036 335920 373490 374452 394160 417430 418795 436696 468065 489668 512408 515440 545870 576080 597584 612085 640510 667888 670072 709631 746980 748904 832663 834860 837590 873392 936130 979336 1024816 1088867 1091740 1216969 1224170 1281020 1340144 1419262 1493960 1497808 1591421 1665326 1669720 1675180 1872260 1958672 2177734 2183480 2433938 2448340 2562040 2838524 2987920 3182842 3330652 3339440 3350360 3548155 3744520 4163315 4355468 4366960 4867876 4896680 5124080 5444335 5677048 6084845 6365684 6661304 6700720 7096310 7489040 7957105 8326630 8710936 9735752 9793360 10888670 11354096 12169690 12731368 13322608 14155271 14192620 15820597 15914210 16653260 17421872 19471504 20688473 21777340 24339380 25462736 28310542 28385240 31641194 31828420 33306520 41376946 43554680 48678760 56621084 56770480 63282388 63656840 66613040 70776355 79102985 82753892 87109360 97357520 103442365 113242168 126564776 127313680 141552710 158205970 165507784 206884730 226484336 253129552 268950149 283105420 316411940 331015568 413769460 537900298 566210840 632823880 827538920 1075800596 1132421680 1265647760 1344750745 1655077840 2151601192 2689501490 4303202384 5379002980 10758005960 21516011920
- Sum of all divisors σ(n): 60558624000
- Sum of proper divisors (its aliquot sum) s(n): 39042612080
- 21516011920 is an abundant number, because the sum of its proper divisors (39042612080) is greater than itself. Its abundance is 17526600160
Bases of 21516011920
- Binary: 101000000100111010001001001100100002
- Hexadecimal: 0x502744990
- Base-36: 9VU2T1S
Squares and roots of 21516011920
- 21516011920 squared (215160119202) is 462938768941582086400
- 21516011920 cubed (215160119203) is 9960596070777205954640869888000
-
The
square root of 21516011920 is 146683.3730182123 -
The
cube root of 21516011920 is 2781.3389992173
Scales and comparisons
How big is 21516011920?- 21,516,011,920 seconds is equal to 684 years, 7 weeks, 2 days, 21 hours, 58 minutes, 40 seconds.
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To count from 1 to 21,516,011,920 would take you about one thousand, three hundred sixty-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 21516011920 cubic inches would be around 231.8 feet tall.
Recreational maths with 21516011920
- 21516011920 backwards is 02911061512
- The number of decimal digits it has is: 11
- The sum of 21516011920's digits is 28
- More coming soon!
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