21197347920
21,197,347,920 is an even composite number composed of six prime numbers multiplied together.
21197347920 is an even composite number. It is composed of six distinct prime numbers multiplied together. It has a total of four hundred eighty divisors.
Prime factorization of 21197347920:
24 × 33 × 5 × 7 × 972 × 149
(2 × 2 × 2 × 2 × 3 × 3 × 3 × 5 × 7 × 97 × 97 × 149)See below for interesting mathematical facts about the number 21197347920 from the Numbermatics database.
Names of 21197347920
- Cardinal: 21197347920 can be written as Twenty-one billion, one hundred ninety-seven million, three hundred forty-seven thousand, nine hundred twenty.
Scientific notation
- Scientific notation: 2.119734792 × 1010
Factors of 21197347920
Divisors of 21197347920
- Number of divisors d(n): 480
-
Complete list of divisors:
1 2 3 4 5 6 7 8 9 10 12 14 15 16 18 20 21 24 27 28 30 35 36 40 42 45 48 54 56 60 63 70 72 80 84 90 97 105 108 112 120 126 135 140 144 149 168 180 189 194 210 216 240 252 270 280 291 298 315 336 360 378 388 420 432 447 485 504 540 560 582 596 630 679 720 745 756 776 840 873 894 945 970 1008 1043 1080 1164 1192 1260 1341 1358 1455 1490 1512 1552 1680 1746 1788 1890 1940 2037 2086 2160 2235 2328 2384 2520 2619 2682 2716 2910 2980 3024 3129 3395 3492 3576 3780 3880 4023 4074 4172 4365 4470 4656 5040 5215 5238 5364 5432 5820 5960 6111 6258 6705 6790 6984 7152 7560 7760 8046 8148 8344 8730 8940 9387 9409 10185 10430 10476 10728 10864 11640 11920 12222 12516 13095 13410 13580 13968 14453 15120 15645 16092 16296 16688 17460 17880 18333 18774 18818 20115 20370 20860 20952 21456 23280 24444 25032 26190 26820 27160 28161 28227 28906 30555 31290 32184 32592 34920 35760 36666 37548 37636 40230 40740 41720 41904 43359 46935 47045 48888 50064 52380 53640 54320 56322 56454 57812 61110 62580 64368 65863 69840 72265 73332 75096 75272 80460 81480 83440 84681 86718 91665 93870 94090 97776 101171 104760 107280 112644 112908 115624 122220 125160 130077 131726 140805 141135 144530 146664 150192 150544 160920 162960 169362 173436 183330 187740 188180 197589 202342 209520 216795 225288 225816 231248 244440 250320 254043 260154 263452 281610 282270 289060 293328 303513 321840 329315 338724 346872 366660 375480 376360 390231 395178 404684 423405 433590 450576 451632 488880 505855 508086 520308 526904 563220 564540 578120 592767 607026 650385 658630 677448 693744 733320 750960 752720 780462 790356 809368 846810 867180 910539 987945 1011710 1016172 1040616 1053808 1126440 1129080 1156240 1185534 1214052 1270215 1300770 1317260 1354896 1401941 1466640 1517565 1560924 1580712 1618736 1693620 1734360 1778301 1821078 1951155 1975890 2023420 2032344 2081232 2252880 2258160 2371068 2428104 2540430 2601540 2634520 2731617 2803882 2963835 3035130 3121848 3161424 3387240 3468720 3556602 3642156 3902310 3951780 4046840 4064688 4205823 4552695 4742136 4856208 5080860 5203080 5269040 5463234 5607764 5927670 6070260 6243696 6774480 7009705 7113204 7284312 7804620 7903560 8093680 8411646 8891505 9105390 9484272 9813587 10161720 10406160 10926468 11215528 11855340 12140520 12617469 13658085 14019410 14226408 14568624 15609240 15807120 16823292 17783010 18210780 19627174 20323440 21029115 21852936 22431056 23710680 24281040 25234938 27316170 28038820 28452816 29440761 31218480 33646584 35566020 36421560 37852407 39254348 42058230 43705872 47421360 49067935 50469876 54632340 56077640 58881522 63087345 67293168 71132040 72843120 75704814 78508696 84116460 88322283 98135870 100939752 109264680 112155280 117763044 126174690 142264080 147203805 151409628 157017392 168232920 176644566 189262035 196271740 201879504 218529360 235526088 252349380 264966849 294407610 302819256 336465840 353289132 378524070 392543480 441611415 471052176 504698760 529933698 588815220 605638512 706578264 757048140 785086960 883222830 1009397520 1059867396 1177630440 1324834245 1413156528 1514096280 1766445660 2119734792 2355260880 2649668490 3028192560 3532891320 4239469584 5299336980 7065782640 10598673960 21197347920
- Sum of all divisors σ(n): 84878496000
- Sum of proper divisors (its aliquot sum) s(n): 63681148080
- 21197347920 is an abundant number, because the sum of its proper divisors (63681148080) is greater than itself. Its abundance is 42483800160
Bases of 21197347920
- Binary: 100111011110111010111011100010100002
- Hexadecimal: 0x4EF75DC50
- Base-36: 9QKCQC0
Squares and roots of 21197347920
- 21197347920 squared (211973479202) is 449327558841528326400
- 21197347920 cubed (211973479203) is 9524552594808148079236121088000
-
The
square root of 21197347920 is 145593.0902206557 -
The
cube root of 21197347920 is 2767.5395930029
Scales and comparisons
How big is 21197347920?- 21,197,347,920 seconds is equal to 674 years, 3 days, 16 hours, 12 minutes.
-
To count from 1 to 21,197,347,920 would take you about one thousand, three hundred forty-eight 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 21197347920 cubic inches would be around 230.6 feet tall.
Recreational maths with 21197347920
- 21197347920 backwards is 02974379112
- 21197347920 is a
Harshad number . - The number of decimal digits it has is: 11
- The sum of 21197347920's digits is 45
- More coming soon!
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