21145844741681520
21,145,844,741,681,520 is an even composite number composed of six prime numbers multiplied together.
21145844741681520 is an even composite number. It is composed of six distinct prime numbers multiplied together. It has a total of two hundred forty divisors.
Prime factorization of 21145844741681520:
24 × 32 × 5 × 7 × 41 × 102331807693
(2 × 2 × 2 × 2 × 3 × 3 × 5 × 7 × 41 × 102331807693)See below for interesting mathematical facts about the number 21145844741681520 from the Numbermatics database.
Names of 21145844741681520
- Cardinal: 21145844741681520 can be written as Twenty-one quadrillion, one hundred forty-five trillion, eight hundred forty-four billion, seven hundred forty-one million, six hundred eighty-one thousand, five hundred twenty.
Scientific notation
- Scientific notation: 2.114584474168152 × 1016
Factors of 21145844741681520
- Number of distinct prime factors ω(n): 6
- Total number of prime factors Ω(n): 10
- Sum of prime factors: 102331807751
Divisors of 21145844741681520
- Number of divisors d(n): 240
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Complete list of divisors:
1 2 3 4 5 6 7 8 9 10 12 14 15 16 18 20 21 24 28 30 35 36 40 41 42 45 48 56 60 63 70 72 80 82 84 90 105 112 120 123 126 140 144 164 168 180 205 210 240 246 252 280 287 315 328 336 360 369 410 420 492 504 560 574 615 630 656 720 738 820 840 861 984 1008 1148 1230 1260 1435 1476 1640 1680 1722 1845 1968 2296 2460 2520 2583 2870 2952 3280 3444 3690 4305 4592 4920 5040 5166 5740 5904 6888 7380 8610 9840 10332 11480 12915 13776 14760 17220 20664 22960 25830 29520 34440 41328 51660 68880 103320 206640 102331807693 204663615386 306995423079 409327230772 511659038465 613990846158 716322653851 818654461544 920986269237 1023318076930 1227981692316 1432645307702 1534977115395 1637308923088 1841972538474 2046636153860 2148967961553 2455963384632 2865290615404 3069954230790 3581613269255 3683945076948 4093272307720 4195604115413 4297935923106 4604931346185 4911926769264 5730581230808 6139908461580 6446903884659 7163226538510 7367890153896 8186544615440 8391208230826 8595871846212 9209862692370 10744839807765 11461162461616 12279816923160 12586812346239 12893807769318 14326453077020 14735780307792 16782416461652 17191743692424 18419725384740 20978020577065 21489679615530 24559633846320 25173624692478 25787615538636 28652906154040 29369228807891 32234519423295 33564832923304 34383487384848 36839450769480 37760437038717 41956041154130 42979359231060 50347249384956 51575231077272 57305812308080 58738457615782 62934061731195 64469038846590 67129665846608 73678901538960 75520874077434 83912082308260 85958718462120 88107686423673 100694498769912 103150462154544 117476915231564 125868123462390 128938077693180 146846144039455 151041748154868 167824164616520 171917436924240 176215372847346 188802185193585 201388997539824 234953830463128 251736246924780 257876155386360 264323059271019 293692288078910 302083496309736 335648329233040 352430745694692 377604370387170 440538432118365 469907660926256 503472493849560 515752310772720 528646118542038 587384576157820 604166992619472 704861491389384 755208740774340 881076864236730 1006944987699120 1057292237084076 1174769152315640 1321615296355095 1409722982778768 1510417481548680 1762153728473460 2114584474168152 2349538304631280 2643230592710190 3020834963097360 3524307456946920 4229168948336304 5286461185420380 7048614913893840 10572922370840760 21145844741681520
- Sum of all divisors σ(n): 83139272497374912
- Sum of proper divisors (its aliquot sum) s(n): 61993427755693392
- 21145844741681520 is an abundant number, because the sum of its proper divisors (61993427755693392) is greater than itself. Its abundance is 40847583014011872
Bases of 21145844741681520
- Binary: 10010110010000000001000101001000100110110110001011100002
- Hexadecimal: 0x4B2008A44DB170
- Base-36: 5S7KQYTNY40
Squares and roots of 21145844741681520
- 21145844741681520 squared (211458447416815202) is 447146749839299989297237109510400
- 21145844741681520 cubed (211458447416815203) is 9455295748849343726752817346676385959679927808000
-
The
square root of 21145844741681520 is 145416108.9483607383 -
The
cube root of 21145844741681520 is 276529.6345679047
Scales and comparisons
How big is 21145844741681520?- 21,145,844,741,681,520 seconds is equal to 672,372,454 years, 20 weeks, 3 days, 2 hours, 12 minutes.
-
To count from 1 to 21,145,844,741,681,520 would take you about two billion, seventeen million, one hundred seventeen thousand, three hundred sixty-three 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 21145844741681520 cubic inches would be around 23044.1 feet tall.
Recreational maths with 21145844741681520
- 21145844741681520 backwards is 02518614744854112
- 21145844741681520 is a
Harshad number . - The number of decimal digits it has is: 17
- The sum of 21145844741681520's digits is 63
- More coming soon!
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