21491361000
21,491,361,000 is an even composite number composed of five prime numbers multiplied together.
21491361000 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of three hundred eighty-four divisors.
Prime factorization of 21491361000:
23 × 32 × 53 × 23 × 473
(2 × 2 × 2 × 3 × 3 × 5 × 5 × 5 × 23 × 47 × 47 × 47)See below for interesting mathematical facts about the number 21491361000 from the Numbermatics database.
Names of 21491361000
- Cardinal: 21491361000 can be written as Twenty-one billion, four hundred ninety-one million, three hundred sixty-one thousand.
Scientific notation
- Scientific notation: 2.1491361 × 1010
Factors of 21491361000
Divisors of 21491361000
- Number of divisors d(n): 384
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Complete list of divisors:
1 2 3 4 5 6 8 9 10 12 15 18 20 23 24 25 30 36 40 45 46 47 50 60 69 72 75 90 92 94 100 115 120 125 138 141 150 180 184 188 200 207 225 230 235 250 276 282 300 345 360 375 376 414 423 450 460 470 500 552 564 575 600 690 705 750 828 846 900 920 940 1000 1035 1081 1125 1128 1150 1175 1380 1410 1500 1656 1692 1725 1800 1880 2070 2115 2162 2209 2250 2300 2350 2760 2820 2875 3000 3243 3384 3450 3525 4140 4230 4324 4418 4500 4600 4700 5175 5405 5640 5750 5875 6486 6627 6900 7050 8280 8460 8625 8648 8836 9000 9400 9729 10350 10575 10810 11045 11500 11750 12972 13254 13800 14100 16215 16920 17250 17625 17672 19458 19881 20700 21150 21620 22090 23000 23500 25875 25944 26508 27025 28200 32430 33135 34500 35250 38916 39762 41400 42300 43240 44180 47000 48645 50807 51750 52875 53016 54050 55225 64860 66270 69000 70500 77832 79524 81075 84600 88360 97290 99405 101614 103500 103823 105750 108100 110450 129720 132540 135125 141000 152421 159048 162150 165675 194580 198810 203228 207000 207646 211500 216200 220900 243225 254035 265080 270250 276125 304842 311469 324300 331350 389160 397620 405375 406456 415292 423000 441800 457263 486450 497025 508070 519115 540500 552250 609684 622938 648600 662700 762105 795240 810750 828375 830584 914526 934407 972900 994050 1016140 1038230 1081000 1104500 1216125 1219368 1245876 1270175 1325400 1524210 1557345 1621500 1656750 1829052 1868814 1945800 1988100 2032280 2076460 2209000 2286315 2387929 2432250 2485125 2491752 2540350 2595575 3048420 3114690 3243000 3313500 3658104 3737628 3810525 3976200 4152920 4572630 4672035 4775858 4864500 4970250 5080700 5191150 6096840 6229380 6350875 6627000 7163787 7475256 7621050 7786725 9145260 9344070 9551716 9729000 9940500 10161400 10382300 11431575 11939645 12458760 12701750 12977875 14327574 15242100 15573450 18290520 18688140 19052625 19103432 19881000 20764600 21491361 22863150 23360175 23879290 25403500 25955750 28655148 30484200 31146900 35818935 37376280 38105250 38933625 42982722 45726300 46720350 47758580 50807000 51911500 57157875 57310296 59698225 62293800 71637870 76210500 77867250 85965444 91452600 93440700 95517160 103823000 107456805 114315750 116800875 119396450 143275740 152421000 155734500 171930888 179094675 186881400 214913610 228631500 233601750 238792900 286551480 298491125 311469000 358189350 429827220 457263000 467203500 477585800 537284025 596982250 716378700 859654440 895473375 934407000 1074568050 1193964500 1432757400 1790946750 2149136100 2387929000 2686420125 3581893500 4298272200 5372840250 7163787000 10745680500 21491361000
- Sum of all divisors σ(n): 77446886400
- Sum of proper divisors (its aliquot sum) s(n): 55955525400
- 21491361000 is an abundant number, because the sum of its proper divisors (55955525400) is greater than itself. Its abundance is 34464164400
Bases of 21491361000
- Binary: 101000000001111110000100100111010002
- Hexadecimal: 0x500FC24E8
- Base-36: 9VFEGA0
Squares and roots of 21491361000
- 21491361000 squared (214913610002) is 461878597632321000000
- 21491361000 cubed (214913610003) is 9926399679889955878881000000000
-
The
square root of 21491361000 is 146599.3212808299 -
The
cube root of 21491361000 is 2780.2763988593
Scales and comparisons
How big is 21491361000?- 21,491,361,000 seconds is equal to 683 years, 18 weeks, 4 days, 14 hours, 30 minutes.
-
To count from 1 to 21,491,361,000 would take you about one thousand, three hundred sixty-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 21491361000 cubic inches would be around 231.7 feet tall.
Recreational maths with 21491361000
- 21491361000 backwards is 00016319412
- The number of decimal digits it has is: 11
- The sum of 21491361000's digits is 27
- More coming soon!
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