21681840000
21,681,840,000 is an even composite number composed of five prime numbers multiplied together.
21681840000 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 21681840000:
27 × 3 × 54 × 61 × 1481
(2 × 2 × 2 × 2 × 2 × 2 × 2 × 3 × 5 × 5 × 5 × 5 × 61 × 1481)See below for interesting mathematical facts about the number 21681840000 from the Numbermatics database.
Names of 21681840000
- Cardinal: 21681840000 can be written as Twenty-one billion, six hundred eighty-one million, eight hundred forty thousand.
Scientific notation
- Scientific notation: 2.168184 × 1010
Factors of 21681840000
Divisors of 21681840000
- Number of divisors d(n): 320
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Complete list of divisors:
1 2 3 4 5 6 8 10 12 15 16 20 24 25 30 32 40 48 50 60 61 64 75 80 96 100 120 122 125 128 150 160 183 192 200 240 244 250 300 305 320 366 375 384 400 480 488 500 600 610 625 640 732 750 800 915 960 976 1000 1200 1220 1250 1464 1481 1500 1525 1600 1830 1875 1920 1952 2000 2400 2440 2500 2928 2962 3000 3050 3200 3660 3750 3904 4000 4443 4575 4800 4880 5000 5856 5924 6000 6100 7320 7405 7500 7625 7808 8000 8886 9150 9600 9760 10000 11712 11848 12000 12200 14640 14810 15000 15250 16000 17772 18300 19520 20000 22215 22875 23424 23696 24000 24400 29280 29620 30000 30500 35544 36600 37025 38125 39040 40000 44430 45750 47392 48000 48800 58560 59240 60000 61000 71088 73200 74050 76250 80000 88860 90341 91500 94784 97600 111075 114375 117120 118480 120000 122000 142176 146400 148100 152500 177720 180682 183000 185125 189568 195200 222150 228750 236960 240000 244000 271023 284352 292800 296200 305000 355440 361364 366000 370250 444300 451705 457500 473920 488000 542046 555375 568704 585600 592400 610000 710880 722728 732000 740500 888600 903410 915000 925625 947840 976000 1084092 1110750 1184800 1220000 1355115 1421760 1445456 1464000 1481000 1777200 1806820 1830000 1851250 2168184 2221500 2258525 2369600 2440000 2710230 2776875 2843520 2890912 2928000 2962000 3554400 3613640 3660000 3702500 4336368 4443000 4517050 4739200 4880000 5420460 5553750 5781824 5924000 6775575 7108800 7227280 7320000 7405000 8672736 8886000 9034100 10840920 11107500 11292625 11563648 11848000 13551150 14217600 14454560 14640000 14810000 17345472 17772000 18068200 21681840 22215000 22585250 23696000 27102300 28909120 29620000 33877875 34690944 35544000 36136400 43363680 44430000 45170500 54204600 56463125 57818240 59240000 67755750 71088000 72272800 86727360 88860000 90341000 108409200 112926250 118480000 135511500 144545600 169389375 173454720 177720000 180682000 216818400 225852500 271023000 289091200 338778750 355440000 361364000 433636800 451705000 542046000 677557500 722728000 867273600 903410000 1084092000 1355115000 1445456000 1806820000 2168184000 2710230000 3613640000 4336368000 5420460000 7227280000 10840920000 21681840000
- Sum of all divisors σ(n): 73196632080
- Sum of proper divisors (its aliquot sum) s(n): 51514792080
- 21681840000 is an abundant number, because the sum of its proper divisors (51514792080) is greater than itself. Its abundance is 29832952080
Bases of 21681840000
- Binary: 101000011000101011010011111100000002
- Hexadecimal: 0x50C569F80
- Base-36: 9YKT2TC
Squares and roots of 21681840000
- 21681840000 squared (216818400002) is 470102185785600000000
- 21681840000 cubed (216818400003) is 10192680375853653504000000000000
-
The
square root of 21681840000 is 147247.5466688665 -
The
cube root of 21681840000 is 2788.4661601557
Scales and comparisons
How big is 21681840000?- 21,681,840,000 seconds is equal to 689 years, 21 weeks, 4 days, 5 hours, 20 minutes.
-
To count from 1 to 21,681,840,000 would take you about one thousand, three hundred seventy-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 21681840000 cubic inches would be around 232.4 feet tall.
Recreational maths with 21681840000
- 21681840000 backwards is 00004818612
- 21681840000 is a
Harshad number . - The number of decimal digits it has is: 11
- The sum of 21681840000's digits is 30
- More coming soon!
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