21821087340
21,821,087,340 is an even composite number composed of five prime numbers multiplied together.
21821087340 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of two hundred forty divisors.
Prime factorization of 21821087340:
22 × 34 × 5 × 133 × 6131
(2 × 2 × 3 × 3 × 3 × 3 × 5 × 13 × 13 × 13 × 6131)See below for interesting mathematical facts about the number 21821087340 from the Numbermatics database.
Names of 21821087340
- Cardinal: 21821087340 can be written as Twenty-one billion, eight hundred twenty-one million, eighty-seven thousand, three hundred forty.
Scientific notation
- Scientific notation: 2.182108734 × 1010
Factors of 21821087340
Divisors of 21821087340
- Number of divisors d(n): 240
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Complete list of divisors:
1 2 3 4 5 6 9 10 12 13 15 18 20 26 27 30 36 39 45 52 54 60 65 78 81 90 108 117 130 135 156 162 169 180 195 234 260 270 324 338 351 390 405 468 507 540 585 676 702 780 810 845 1014 1053 1170 1404 1521 1620 1690 1755 2028 2106 2197 2340 2535 3042 3380 3510 4212 4394 4563 5070 5265 6084 6131 6591 7020 7605 8788 9126 10140 10530 10985 12262 13182 13689 15210 18252 18393 19773 21060 21970 22815 24524 26364 27378 30420 30655 32955 36786 39546 43940 45630 54756 55179 59319 61310 65910 68445 73572 79092 79703 91260 91965 98865 110358 118638 122620 131820 136890 159406 165537 177957 183930 197730 220716 237276 239109 273780 275895 296595 318812 331074 355914 367860 395460 398515 478218 496611 551790 593190 662148 711828 717327 797030 827685 889785 956436 993222 1036139 1103580 1186380 1195545 1434654 1594060 1655370 1779570 1986444 2072278 2151981 2391090 2483055 2869308 3108417 3310740 3559140 3586635 4144556 4303962 4782180 4966110 5180695 6216834 6455943 7173270 8607924 9325251 9932220 10361390 10759905 12433668 12911886 13469807 14346540 15542085 18650502 20722780 21519810 25823772 26939614 27975753 31084170 32279715 37301004 40409421 43039620 46626255 53879228 55951506 62168340 64559430 67349035 80818842 83927259 93252510 111903012 121228263 129118860 134698070 139878765 161637684 167854518 186505020 202047105 242456526 269396140 279757530 335709036 363684789 404094210 419636295 484913052 559515060 606141315 727369578 808188420 839272590 1091054367 1212282630 1454739156 1678545180 1818423945 2182108734 2424565260 3636847890 4364217468 5455271835 7273695780 10910543670 21821087340
- Sum of all divisors σ(n): 74167521120
- Sum of proper divisors (its aliquot sum) s(n): 52346433780
- 21821087340 is an abundant number, because the sum of its proper divisors (52346433780) is greater than itself. Its abundance is 30525346440
Bases of 21821087340
- Binary: 101000101001010001101011110011011002
- Hexadecimal: 0x514A35E6C
- Base-36: A0VPMR0
Squares and roots of 21821087340
- 21821087340 squared (218210873402) is 476159852699908275600
- 21821087340 cubed (218210873403) is 10390325733566233291856390904000
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The
square root of 21821087340 is 147719.6240856305 -
The
cube root of 21821087340 is 2794.4228842697
Scales and comparisons
How big is 21821087340?- 21,821,087,340 seconds is equal to 693 years, 43 weeks, 5 days, 21 hours, 9 minutes.
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To count from 1 to 21,821,087,340 would take you about one thousand, three hundred eighty-seven 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 21821087340 cubic inches would be around 232.9 feet tall.
Recreational maths with 21821087340
- 21821087340 backwards is 04378012812
- 21821087340 is a
Harshad number . - The number of decimal digits it has is: 11
- The sum of 21821087340's digits is 36
- More coming soon!
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