21387892320
21,387,892,320 is an even composite number composed of six prime numbers multiplied together.
21387892320 is an even composite number. It is composed of six distinct prime numbers multiplied together. It has a total of three hundred eighty-four divisors.
Prime factorization of 21387892320:
25 × 33 × 5 × 71 × 103 × 677
(2 × 2 × 2 × 2 × 2 × 3 × 3 × 3 × 5 × 71 × 103 × 677)See below for interesting mathematical facts about the number 21387892320 from the Numbermatics database.
Names of 21387892320
- Cardinal: 21387892320 can be written as Twenty-one billion, three hundred eighty-seven million, eight hundred ninety-two thousand, three hundred twenty.
Scientific notation
- Scientific notation: 2.138789232 × 1010
Factors of 21387892320
Divisors of 21387892320
- Number of divisors d(n): 384
-
Complete list of divisors:
1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 27 30 32 36 40 45 48 54 60 71 72 80 90 96 103 108 120 135 142 144 160 180 206 213 216 240 270 284 288 309 355 360 412 426 432 480 515 540 568 618 639 677 710 720 824 852 864 927 1030 1065 1080 1136 1236 1278 1354 1420 1440 1545 1648 1704 1854 1917 2031 2060 2130 2160 2272 2472 2556 2708 2781 2840 3090 3195 3296 3385 3408 3708 3834 4062 4120 4260 4320 4635 4944 5112 5416 5562 5680 6093 6180 6390 6770 6816 7313 7416 7668 8124 8240 8520 9270 9585 9888 10155 10224 10832 11124 11360 12186 12360 12780 13540 13905 14626 14832 15336 16248 16480 17040 18279 18540 19170 20310 20448 21664 21939 22248 24372 24720 25560 27080 27810 29252 29664 30465 30672 32496 34080 36558 36565 37080 38340 40620 43878 44496 48067 48744 49440 51120 54160 55620 58504 60930 61344 64992 65817 69731 73116 73130 74160 76680 81240 87756 88992 91395 96134 97488 102240 108320 109695 111240 117008 121860 131634 139462 144201 146232 146260 148320 153360 162480 175512 182790 192268 194976 197451 209193 219390 222480 234016 240335 243720 263268 278924 288402 292464 292520 306720 324960 329085 348655 351024 365580 384536 394902 418386 432603 438780 444960 480670 487440 526536 557848 576804 584928 585040 627579 658170 697310 702048 721005 731160 769072 789804 836772 865206 877560 961340 974880 987255 1045965 1053072 1115696 1153608 1170080 1255158 1297809 1316340 1394620 1442010 1462320 1538144 1579608 1673544 1730412 1755120 1882737 1922680 1974510 2091930 2106144 2163015 2231392 2307216 2510316 2595618 2632680 2789240 2884020 2924640 3137895 3159216 3347088 3460824 3510240 3765474 3845360 3949020 4183860 4326030 4614432 4950901 5020632 5191236 5265360 5578480 5768040 6275790 6318432 6489045 6694176 6921648 7530948 7690720 7898040 8367720 8652060 9413685 9901802 10041264 10382472 10530720 11156960 11536080 12551580 12978090 13843296 14852703 15061896 15796080 16735440 17304120 18827370 19803604 20082528 20764944 23072160 24754505 25103160 25956180 29705406 30123792 31592160 33470880 34608240 37654740 39607208 41529888 44558109 49509010 50206320 51912360 59410812 60247584 69216480 74263515 75309480 79214416 89116218 99018020 100412640 103824720 118821624 133674327 148527030 150618960 158428832 178232436 198036040 207649440 222790545 237643248 267348654 297054060 301237920 356464872 396072080 445581090 475286496 534697308 594108120 668371635 712929744 792144160 891162180 1069394616 1188216240 1336743270 1425859488 1782324360 2138789232 2376432480 2673486540 3564648720 4277578464 5346973080 7129297440 10693946160 21387892320
- Sum of all divisors σ(n): 76762183680
- Sum of proper divisors (its aliquot sum) s(n): 55374291360
- 21387892320 is an abundant number, because the sum of its proper divisors (55374291360) is greater than itself. Its abundance is 33986399040
Bases of 21387892320
- Binary: 100111110101101000101010110011000002
- Hexadecimal: 0x4FAD15660
- Base-36: 9TPSRC0
Squares and roots of 21387892320
- 21387892320 squared (213878923202) is 457441937891914982400
- 21387892320 cubed (213878923203) is 9783718910284405442165895168000
-
The
square root of 21387892320 is 146245.9993298963 -
The
cube root of 21387892320 is 2775.8074027505
Scales and comparisons
How big is 21387892320?- 21,387,892,320 seconds is equal to 680 years, 3 weeks, 4 days, 1 hour, 12 minutes.
-
To count from 1 to 21,387,892,320 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 21387892320 cubic inches would be around 231.3 feet tall.
Recreational maths with 21387892320
- 21387892320 backwards is 02329878312
- 21387892320 is a
Harshad number . - The number of decimal digits it has is: 11
- The sum of 21387892320's digits is 45
- More coming soon!
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