21688015440
21,688,015,440 is an even composite number composed of six prime numbers multiplied together.
21688015440 is an even composite number. It is composed of six distinct prime numbers multiplied together. It has a total of two hundred forty divisors.
Prime factorization of 21688015440:
24 × 3 × 5 × 72 × 13 × 141863
(2 × 2 × 2 × 2 × 3 × 5 × 7 × 7 × 13 × 141863)See below for interesting mathematical facts about the number 21688015440 from the Numbermatics database.
Names of 21688015440
- Cardinal: 21688015440 can be written as Twenty-one billion, six hundred eighty-eight million, fifteen thousand, four hundred forty.
Scientific notation
- Scientific notation: 2.168801544 × 1010
Factors of 21688015440
Divisors of 21688015440
- Number of divisors d(n): 240
-
Complete list of divisors:
1 2 3 4 5 6 7 8 10 12 13 14 15 16 20 21 24 26 28 30 35 39 40 42 48 49 52 56 60 65 70 78 80 84 91 98 104 105 112 120 130 140 147 156 168 182 195 196 208 210 240 245 260 273 280 294 312 336 364 390 392 420 455 490 520 546 560 588 624 637 728 735 780 784 840 910 980 1040 1092 1176 1274 1365 1456 1470 1560 1680 1820 1911 1960 2184 2352 2548 2730 2940 3120 3185 3640 3822 3920 4368 5096 5460 5880 6370 7280 7644 9555 10192 10920 11760 12740 15288 19110 21840 25480 30576 38220 50960 76440 141863 152880 283726 425589 567452 709315 851178 993041 1134904 1418630 1702356 1844219 1986082 2127945 2269808 2837260 2979123 3404712 3688438 3972164 4255890 4965205 5532657 5674520 5958246 6809424 6951287 7376876 7944328 8511780 9221095 9930410 11065314 11349040 11916492 12909533 13902574 14753752 14895615 15888656 17023560 18442190 19860820 20853861 22130628 23832984 25819066 27663285 27805148 29507504 29791230 34047120 34756435 36884380 38728599 39721640 41707722 44261256 47665968 51638132 55326570 55610296 59582460 64547665 69512870 73768760 77457198 79443280 83415444 88522512 90366731 103276264 104269305 110653140 111220592 119164920 129095330 139025740 147537520 154914396 166830888 180733462 193642995 206552528 208538610 221306280 238329840 258190660 271100193 278051480 309828792 333661776 361466924 387285990 417077220 442612560 451833655 516381320 542200386 556102960 619657584 722933848 774571980 834154440 903667310 1032762640 1084400772 1355500965 1445867696 1549143960 1668308880 1807334620 2168801544 2711001930 3098287920 3614669240 4337603088 5422003860 7229338480 10844007720 21688015440
- Sum of all divisors σ(n): 84226359168
- Sum of proper divisors (its aliquot sum) s(n): 62538343728
- 21688015440 is an abundant number, because the sum of its proper divisors (62538343728) is greater than itself. Its abundance is 40850328288
Bases of 21688015440
- Binary: 101000011001011010011011010010100002
- Hexadecimal: 0x50CB4DA50
- Base-36: 9YOHFTC
Squares and roots of 21688015440
- 21688015440 squared (216880154402) is 470370013725678393600
- 21688015440 cubed (216880154403) is 10201392120195524924871197184000
-
The
square root of 21688015440 is 147268.5147613027 -
The
cube root of 21688015440 is 2788.7308727885
Scales and comparisons
How big is 21688015440?- 21,688,015,440 seconds is equal to 689 years, 31 weeks, 5 days, 16 hours, 44 minutes.
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To count from 1 to 21,688,015,440 would take you about one thousand, three hundred seventy-nine 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 21688015440 cubic inches would be around 232.4 feet tall.
Recreational maths with 21688015440
- 21688015440 backwards is 04451088612
- 21688015440 is a
Harshad number . - The number of decimal digits it has is: 11
- The sum of 21688015440's digits is 39
- More coming soon!
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"Number 21688015440 - Facts about the integer". Numbermatics.com. 2024. Web. 28 May 2024.
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