21521838080
21,521,838,080 is an even composite number composed of five prime numbers multiplied together.
21521838080 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of three hundred twelve divisors.
Prime factorization of 21521838080:
212 × 5 × 192 × 41 × 71
(2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 5 × 19 × 19 × 41 × 71)See below for interesting mathematical facts about the number 21521838080 from the Numbermatics database.
Names of 21521838080
- Cardinal: 21521838080 can be written as Twenty-one billion, five hundred twenty-one million, eight hundred thirty-eight thousand and eighty.
Scientific notation
- Scientific notation: 2.152183808 × 1010
Factors of 21521838080
Divisors of 21521838080
- Number of divisors d(n): 312
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Complete list of divisors:
1 2 4 5 8 10 16 19 20 32 38 40 41 64 71 76 80 82 95 128 142 152 160 164 190 205 256 284 304 320 328 355 361 380 410 512 568 608 640 656 710 722 760 779 820 1024 1136 1216 1280 1312 1349 1420 1444 1520 1558 1640 1805 2048 2272 2432 2560 2624 2698 2840 2888 2911 3040 3116 3280 3610 3895 4096 4544 4864 5120 5248 5396 5680 5776 5822 6080 6232 6560 6745 7220 7790 9088 9728 10240 10496 10792 11360 11552 11644 12160 12464 13120 13490 14440 14555 14801 15580 18176 19456 20480 20992 21584 22720 23104 23288 24320 24928 25631 26240 26980 28880 29110 29602 31160 36352 38912 41984 43168 45440 46208 46576 48640 49856 51262 52480 53960 55309 57760 58220 59204 62320 72704 74005 77824 83968 86336 90880 92416 93152 97280 99712 102524 104960 107920 110618 115520 116440 118408 124640 128155 145408 148010 167936 172672 181760 184832 186304 194560 199424 205048 209920 215840 221236 231040 232880 236816 249280 256310 276545 290816 296020 345344 363520 369664 372608 389120 398848 410096 419840 431680 442472 462080 465760 473632 498560 512620 553090 592040 690688 727040 739328 745216 797696 820192 839680 863360 884944 924160 931520 947264 997120 1025240 1050871 1106180 1184080 1381376 1454080 1478656 1490432 1595392 1640384 1726720 1769888 1848320 1863040 1894528 1994240 2050480 2101742 2212360 2368160 2762752 2980864 3190784 3280768 3453440 3539776 3696640 3726080 3789056 3988480 4100960 4203484 4424720 4736320 5254355 5525504 5961728 6561536 6906880 7079552 7393280 7452160 7578112 7976960 8201920 8406968 8849440 9472640 10508710 11923456 13123072 13813760 14159104 14904320 15156224 15953920 16403840 16813936 17698880 18945280 21017420 26246144 27627520 28318208 29808640 30312448 32807680 33627872 35397760 37890560 42034840 52492288 56636416 59617280 60624896 65615360 67255744 70795520 75781120 84069680 104984576 113272832 131230720 134511488 141591040 151562240 168139360 226545664 262461440 269022976 283182080 303124480 336278720 524922880 538045952 566364160 672557440 1076091904 1132728320 1345114880 2152183808 2690229760 4304367616 5380459520 10760919040 21521838080
- Sum of all divisors σ(n): 56623269024
- Sum of proper divisors (its aliquot sum) s(n): 35101430944
- 21521838080 is an abundant number, because the sum of its proper divisors (35101430944) is greater than itself. Its abundance is 13579592864
Bases of 21521838080
- Binary: 101000000101100110100110000000000002
- Hexadecimal: 0x502CD3000
- Base-36: 9VXJOJK
Squares and roots of 21521838080
- 21521838080 squared (215218380802) is 463189514341738086400
- 21521838080 cubed (215218380803) is 9968689728016724881269850112000
-
The
square root of 21521838080 is 146703.2313209221 -
The
cube root of 21521838080 is 2781.5900225587
Scales and comparisons
How big is 21521838080?- 21,521,838,080 seconds is equal to 684 years, 17 weeks, 8 hours, 21 minutes, 20 seconds.
-
To count from 1 to 21,521,838,080 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 21521838080 cubic inches would be around 231.8 feet tall.
Recreational maths with 21521838080
- 21521838080 backwards is 08083812512
- 21521838080 is a
Harshad number . - The number of decimal digits it has is: 11
- The sum of 21521838080's digits is 38
- More coming soon!
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