21390538400
21,390,538,400 is an even composite number composed of six prime numbers multiplied together.
21390538400 is an even composite number. It is composed of six distinct prime numbers multiplied together. It has a total of four hundred thirty-two divisors.
Prime factorization of 21390538400:
25 × 52 × 72 × 11 × 113 × 439
(2 × 2 × 2 × 2 × 2 × 5 × 5 × 7 × 7 × 11 × 113 × 439)See below for interesting mathematical facts about the number 21390538400 from the Numbermatics database.
Names of 21390538400
- Cardinal: 21390538400 can be written as Twenty-one billion, three hundred ninety million, five hundred thirty-eight thousand, four hundred.
Scientific notation
- Scientific notation: 2.13905384 × 1010
Factors of 21390538400
Divisors of 21390538400
- Number of divisors d(n): 432
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Complete list of divisors:
1 2 4 5 7 8 10 11 14 16 20 22 25 28 32 35 40 44 49 50 55 56 70 77 80 88 98 100 110 112 113 140 154 160 175 176 196 200 220 224 226 245 275 280 308 350 352 385 392 400 439 440 452 490 539 550 560 565 616 700 770 784 791 800 878 880 904 980 1078 1100 1120 1130 1225 1232 1243 1400 1540 1568 1582 1756 1760 1808 1925 1960 2156 2195 2200 2260 2450 2464 2486 2695 2800 2825 3073 3080 3164 3512 3616 3850 3920 3955 4312 4390 4400 4520 4829 4900 4972 5390 5537 5600 5650 6146 6160 6215 6328 7024 7700 7840 7910 8624 8701 8780 8800 9040 9658 9800 9944 10780 10975 11074 11300 12292 12320 12430 12656 13475 14048 15365 15400 15820 17248 17402 17560 18080 19316 19600 19775 19888 21511 21560 21950 22148 22600 24145 24584 24860 25312 26950 27685 30730 30800 31075 31640 33803 34804 35120 38632 39200 39550 39776 43022 43120 43505 43900 44296 45200 48290 49168 49607 49720 53900 55370 60907 61460 61600 62150 63280 67606 69608 70240 76825 77264 79100 86044 86240 87010 87800 88592 90400 96580 98336 99214 99440 107555 107800 110740 120725 121814 122920 124300 126560 135212 138425 139216 153650 154528 158200 169015 172088 174020 175600 177184 193160 198428 198880 215110 215600 217525 221480 236621 241450 243628 245840 248035 248600 270424 276850 278432 304535 307300 316400 338030 344176 347249 348040 351200 386320 396856 430220 431200 435050 442960 473242 482900 487256 491680 496070 497200 537775 540848 545677 553700 609070 614600 632800 676060 688352 694498 696080 772640 793712 845075 860440 870100 885920 946484 965800 974512 992140 994400 1075550 1081696 1091354 1107400 1183105 1218140 1229200 1240175 1352120 1388996 1392160 1522675 1587424 1690150 1720880 1736245 1740200 1892968 1931600 1949024 1984280 2151100 2182708 2214800 2366210 2430743 2436280 2458400 2480350 2704240 2728385 2777992 3045350 3380300 3441760 3472490 3480400 3785936 3819739 3863200 3968560 4302200 4365416 4429600 4732420 4861486 4872560 4960700 5408480 5456770 5555984 5915525 6090700 6760600 6944980 6960800 7571872 7639478 7937120 8604400 8681225 8730832 9464840 9722972 9745120 9921400 10913540 11111968 11831050 12153715 12181400 13521200 13641925 13889960 15278956 17208800 17362450 17461664 18929680 19098695 19445944 19842800 21827080 23662100 24307430 24362800 26738173 27042400 27283850 27779920 30557912 34724900 37859360 38197390 38891888 39685600 43654160 47324200 48614860 48725600 53476346 54567700 55559840 60768575 61115824 69449800 76394780 77783776 87308320 94648400 95493475 97229720 106952692 109135400 121537150 122231648 133690865 138899600 152789560 189296800 190986950 194459440 213905384 218270800 243074300 267381730 277799200 305579120 381973900 388918880 427810768 436541600 486148600 534763460 611158240 668454325 763947800 855621536 972297200 1069526920 1336908650 1527895600 1944594400 2139053840 2673817300 3055791200 4278107680 5347634600 10695269200 21390538400
- Sum of all divisors σ(n): 67006336320
- Sum of proper divisors (its aliquot sum) s(n): 45615797920
- 21390538400 is an abundant number, because the sum of its proper divisors (45615797920) is greater than itself. Its abundance is 24225259520
Bases of 21390538400
- Binary: 100111110101111100110110110101000002
- Hexadecimal: 0x4FAF9B6A0
- Base-36: 9TRDH28
Squares and roots of 21390538400
- 21390538400 squared (213905384002) is 457555133041874560000
- 21390538400 cubed (213905384003) is 9787350643449326583663104000000
-
The
square root of 21390538400 is 146255.0457249253 -
The
cube root of 21390538400 is 2775.9218710277
Scales and comparisons
How big is 21390538400?- 21,390,538,400 seconds is equal to 680 years, 7 weeks, 6 days, 16 hours, 13 minutes, 20 seconds.
-
To count from 1 to 21,390,538,400 would take you about one thousand, three hundred sixty 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 21390538400 cubic inches would be around 231.3 feet tall.
Recreational maths with 21390538400
- 21390538400 backwards is 00483509312
- 21390538400 is a
Harshad number . - The number of decimal digits it has is: 11
- The sum of 21390538400's digits is 35
- More coming soon!
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The information we have on file for 21390538400 includes mathematical data and numerical statistics calculated using standard algorithms and methods. We are adding more all the time. If there are any features you would like to see, please contact us. Information provided for educational use, intellectual curiosity and fun!
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