21354039720
21,354,039,720 is an even composite number composed of six prime numbers multiplied together.
21354039720 is an even composite number. It is composed of six distinct prime numbers multiplied together. It has a total of three hundred twenty divisors.
Prime factorization of 21354039720:
23 × 34 × 5 × 13 × 181 × 2801
(2 × 2 × 2 × 3 × 3 × 3 × 3 × 5 × 13 × 181 × 2801)See below for interesting mathematical facts about the number 21354039720 from the Numbermatics database.
Names of 21354039720
- Cardinal: 21354039720 can be written as Twenty-one billion, three hundred fifty-four million, thirty-nine thousand, seven hundred twenty.
Scientific notation
- Scientific notation: 2.135403972 × 1010
Factors of 21354039720
Divisors of 21354039720
- Number of divisors d(n): 320
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Complete list of divisors:
1 2 3 4 5 6 8 9 10 12 13 15 18 20 24 26 27 30 36 39 40 45 52 54 60 65 72 78 81 90 104 108 117 120 130 135 156 162 180 181 195 216 234 260 270 312 324 351 360 362 390 405 468 520 540 543 585 648 702 724 780 810 905 936 1053 1080 1086 1170 1404 1448 1560 1620 1629 1755 1810 2106 2172 2340 2353 2715 2801 2808 3240 3258 3510 3620 4212 4344 4680 4706 4887 5265 5430 5602 6516 7020 7059 7240 8145 8403 8424 9412 9774 10530 10860 11204 11765 13032 14005 14040 14118 14661 16290 16806 18824 19548 21060 21177 21720 22408 23530 24435 25209 28010 28236 29322 32580 33612 35295 36413 39096 42015 42120 42354 47060 48870 50418 56020 56472 58644 63531 65160 67224 70590 72826 73305 75627 84030 84708 94120 97740 100836 105885 109239 112040 117288 126045 127062 141180 145652 146610 151254 168060 169416 182065 190593 195480 201672 211770 218478 226881 252090 254124 282360 291304 293220 302508 317655 327717 336120 364130 378135 381186 423540 436956 453762 504180 506981 508248 546195 586440 605016 635310 655434 728260 756270 762372 847080 873912 907524 952965 983151 1008360 1013962 1092390 1134405 1270620 1310868 1456520 1512540 1520943 1524744 1638585 1815048 1905930 1966302 2027924 2184780 2268810 2534905 2541240 2621736 2949453 3025080 3041886 3277170 3811860 3932604 4055848 4369560 4537620 4562829 4915755 5069810 5898906 6083772 6554340 6590753 7604715 7623720 7865208 9075240 9125658 9831510 10139620 11797812 12167544 13108680 13181506 13688487 14747265 15209430 18251316 19663020 19772259 20279240 22814145 23595624 26363012 27376974 29494530 30418860 32953765 36502632 39326040 39544518 41065461 45628290 52726024 54753948 58989060 59316777 60837720 65907530 68442435 79089036 82130922 91256580 98861295 109507896 117978120 118633554 131815060 136884870 158178072 164261844 177950331 182513160 197722590 205327305 237267108 263630120 273769740 296583885 328523688 355900662 395445180 410654610 474534216 533850993 547539480 593167770 711801324 790890360 821309220 889751655 1067701986 1186335540 1423602648 1642618440 1779503310 2135403972 2372671080 2669254965 3559006620 4270807944 5338509930 7118013240 10677019860 21354039720
- Sum of all divisors σ(n): 77749111440
- Sum of proper divisors (its aliquot sum) s(n): 56395071720
- 21354039720 is an abundant number, because the sum of its proper divisors (56395071720) is greater than itself. Its abundance is 35041032000
Bases of 21354039720
- Binary: 100111110001100110011001001101010002
- Hexadecimal: 0x4F8CCC9A8
- Base-36: 9T5N6I0
Squares and roots of 21354039720
- 21354039720 squared (213540397202) is 455995012363337678400
- 21354039720 cubed (213540397203) is 9737335606128603856326186048000
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The
square root of 21354039720 is 146130.2149454383 -
The
cube root of 21354039720 is 2774.3421201601
Scales and comparisons
How big is 21354039720?- 21,354,039,720 seconds is equal to 678 years, 51 weeks, 4 days, 5 hours, 42 minutes.
-
To count from 1 to 21,354,039,720 would take you about one thousand, three hundred fifty-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 21354039720 cubic inches would be around 231.2 feet tall.
Recreational maths with 21354039720
- 21354039720 backwards is 02793045312
- 21354039720 is a
Harshad number . - The number of decimal digits it has is: 11
- The sum of 21354039720's digits is 36
- More coming soon!
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