21424868920
21,424,868,920 is an even composite number composed of seven prime numbers multiplied together.
What does the number 21424868920 look like?
This visualization shows the relationship between its 7 prime factors (large circles) and 256 divisors.
21424868920 is an even composite number. It is composed of seven distinct prime numbers multiplied together. It has a total of two hundred fifty-six divisors.
Prime factorization of 21424868920:
23 × 5 × 7 × 13 × 19 × 23 × 13469
(2 × 2 × 2 × 5 × 7 × 13 × 19 × 23 × 13469)See below for interesting mathematical facts about the number 21424868920 from the Numbermatics database.
Names of 21424868920
- Cardinal: 21424868920 can be written as Twenty-one billion, four hundred twenty-four million, eight hundred sixty-eight thousand, nine hundred twenty.
Scientific notation
- Scientific notation: 2.142486892 × 1010
Factors of 21424868920
Divisors of 21424868920
- Number of divisors d(n): 256
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Complete list of divisors:
1 2 4 5 7 8 10 13 14 19 20 23 26 28 35 38 40 46 52 56 65 70 76 91 92 95 104 115 130 133 140 152 161 182 184 190 230 247 260 266 280 299 322 364 380 437 455 460 494 520 532 598 644 665 728 760 805 874 910 920 988 1064 1196 1235 1288 1330 1495 1610 1729 1748 1820 1976 2093 2185 2392 2470 2660 2990 3059 3220 3458 3496 3640 4186 4370 4940 5320 5681 5980 6118 6440 6916 8372 8645 8740 9880 10465 11362 11960 12236 13469 13832 15295 16744 17290 17480 20930 22724 24472 26938 28405 30590 34580 39767 41860 45448 53876 56810 61180 67345 69160 79534 83720 94283 107752 113620 122360 134690 159068 175097 188566 198835 227240 255911 269380 309787 318136 350194 377132 397670 471415 511822 538760 619574 700388 754264 795340 875485 942830 1023644 1225679 1239148 1279555 1400776 1548935 1590680 1750970 1791377 1885660 2047288 2168509 2451358 2478296 2559110 3097870 3326843 3501940 3582754 3771320 4027231 4337018 4902716 5118220 5885953 6128395 6195740 6653686 7003880 7165508 8054462 8674036 8956885 9805432 10236440 10842545 11771906 12256790 12391480 13307372 14331016 16108924 16634215 17348072 17913770 20136155 21685090 23287901 23543812 24513580 26614744 28190617 29429765 32217848 33268430 35827540 40272310 41201671 43370180 46575802 47087624 49027160 56381234 58859530 66536860 71655080 76517389 80544620 82403342 86740360 93151604 112762468 116439505 117719060 133073720 140953085 153034778 161089240 164806684 186303208 206008355 225524936 232879010 235438120 281906170 306069556 329613368 382586945 412016710 465758020 535621723 563812340 612139112 765173890 824033420 931516040 1071243446 1127624680 1530347780 1648066840 2142486892 2678108615 3060695560 4284973784 5356217230 10712434460 21424868920
- Sum of all divisors σ(n): 65173248000
- Sum of proper divisors (its aliquot sum) s(n): 43748379080
- 21424868920 is an abundant number, because the sum of its proper divisors (43748379080) is greater than itself. Its abundance is 22323510160
Bases of 21424868920
- Binary: 100111111010000010110001110001110002
- Hexadecimal: 0x4FD058E38
- Base-36: 9UBTANS
Squares and roots of 21424868920
- 21424868920 squared (214248689202) is 459025008239181966400
- 21424868920 cubed (214248689203) is 9834550632526393638147844288000
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The
square root of 21424868920 is 146372.3639216091 -
The
cube root of 21424868920 is 2777.4061394767
Scales and comparisons
How big is 21424868920?- 21,424,868,920 seconds is equal to 681 years, 12 weeks, 5 days, 28 minutes, 40 seconds.
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To count from 1 to 21,424,868,920 would take you about one thousand, three hundred sixty-two 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 21424868920 cubic inches would be around 231.5 feet tall.
Recreational maths with 21424868920
- 21424868920 backwards is 02986842412
- 21424868920 is a
Harshad number . - The number of decimal digits it has is: 11
- The sum of 21424868920's digits is 46
- More coming soon!
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