21159121920
21,159,121,920 is an even composite number composed of six prime numbers multiplied together.
21159121920 is an even composite number. It is composed of six distinct prime numbers multiplied together. It has a total of three hundred fifty-two divisors.
Prime factorization of 21159121920:
210 × 3 × 5 × 31 × 37 × 1201
(2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 3 × 5 × 31 × 37 × 1201)See below for interesting mathematical facts about the number 21159121920 from the Numbermatics database.
Names of 21159121920
- Cardinal: 21159121920 can be written as Twenty-one billion, one hundred fifty-nine million, one hundred twenty-one thousand, nine hundred twenty.
Scientific notation
- Scientific notation: 2.115912192 × 1010
Factors of 21159121920
Divisors of 21159121920
- Number of divisors d(n): 352
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Complete list of divisors:
1 2 3 4 5 6 8 10 12 15 16 20 24 30 31 32 37 40 48 60 62 64 74 80 93 96 111 120 124 128 148 155 160 185 186 192 222 240 248 256 296 310 320 370 372 384 444 465 480 496 512 555 592 620 640 740 744 768 888 930 960 992 1024 1110 1147 1184 1201 1240 1280 1480 1488 1536 1776 1860 1920 1984 2220 2294 2368 2402 2480 2560 2960 2976 3072 3441 3552 3603 3720 3840 3968 4440 4588 4736 4804 4960 5120 5735 5920 5952 6005 6882 7104 7206 7440 7680 7936 8880 9176 9472 9608 9920 11470 11840 11904 12010 13764 14208 14412 14880 15360 15872 17205 17760 18015 18352 18944 19216 19840 22940 23680 23808 24020 27528 28416 28824 29760 31744 34410 35520 36030 36704 37231 37888 38432 39680 44437 45880 47360 47616 48040 55056 56832 57648 59520 68820 71040 72060 73408 74462 76864 79360 88874 91760 94720 95232 96080 110112 111693 113664 115296 119040 133311 137640 142080 144120 146816 148924 153728 158720 177748 183520 186155 189440 192160 220224 222185 223386 230592 238080 266622 275280 284160 288240 293632 297848 307456 355496 367040 372310 384320 440448 444370 446772 461184 476160 533244 550560 558465 568320 576480 587264 595696 614912 666555 710992 734080 744620 768640 880896 888740 893544 922368 1066488 1101120 1116930 1152960 1174528 1191392 1229824 1333110 1377547 1421984 1468160 1489240 1537280 1761792 1777480 1787088 1844736 2132976 2202240 2233860 2305920 2382784 2666220 2755094 2843968 2936320 2978480 3074560 3523584 3554960 3574176 3689472 4132641 4265952 4404480 4467720 4611840 4765568 5332440 5510188 5687936 5872640 5956960 6149120 6887735 7109920 7148352 8265282 8531904 8808960 8935440 9223680 9531136 10664880 11020376 11375872 11913920 13775470 14219840 14296704 16530564 17063808 17617920 17870880 18447360 19062272 20663205 21329760 22040752 22751744 23827840 27550940 28439680 28593408 33061128 34127616 35741760 38124544 41326410 42659520 44081504 45503488 47655680 55101880 56879360 57186816 66122256 68255232 71483520 82652820 85319040 88163008 95311360 110203760 113758720 114373632 132244512 136510464 142967040 165305640 170638080 176326016 190622720 220407520 227517440 264489024 285934080 330611280 341276160 352652032 440815040 528978048 571868160 661222560 682552320 705304064 881630080 1057956096 1322445120 1410608128 1763260160 2115912192 2644890240 3526520320 4231824384 5289780480 7053040640 10579560960 21159121920
- Sum of all divisors σ(n): 71807056896
- Sum of proper divisors (its aliquot sum) s(n): 50647934976
- 21159121920 is an abundant number, because the sum of its proper divisors (50647934976) is greater than itself. Its abundance is 29488813056
Bases of 21159121920
- Binary: 100111011010010111010010100000000002
- Hexadecimal: 0x4ED2E9400
- Base-36: 9PXLEYO
Squares and roots of 21159121920
- 21159121920 squared (211591219202) is 447708440425424486400
- 21159121920 cubed (211591219203) is 9473117475574613375490981888000
-
The
square root of 21159121920 is 145461.7541486421 -
The
cube root of 21159121920 is 2765.8749881415
Scales and comparisons
How big is 21159121920?- 21,159,121,920 seconds is equal to 672 years, 41 weeks, 2 days, 5 hours, 52 minutes.
-
To count from 1 to 21,159,121,920 would take you about one thousand, three hundred forty-five 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 21159121920 cubic inches would be around 230.5 feet tall.
Recreational maths with 21159121920
- 21159121920 backwards is 02912195112
- The number of decimal digits it has is: 11
- The sum of 21159121920's digits is 33
- More coming soon!
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