21361804880
21,361,804,880 is an even composite number composed of seven prime numbers multiplied together.
21361804880 is an even composite number. It is composed of seven distinct prime numbers multiplied together. It has a total of three hundred twenty divisors.
Prime factorization of 21361804880:
24 × 5 × 13 × 19 × 31 × 43 × 811
(2 × 2 × 2 × 2 × 5 × 13 × 19 × 31 × 43 × 811)See below for interesting mathematical facts about the number 21361804880 from the Numbermatics database.
Names of 21361804880
- Cardinal: 21361804880 can be written as Twenty-one billion, three hundred sixty-one million, eight hundred four thousand, eight hundred eighty.
Scientific notation
- Scientific notation: 2.136180488 × 1010
Factors of 21361804880
Divisors of 21361804880
- Number of divisors d(n): 320
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Complete list of divisors:
1 2 4 5 8 10 13 16 19 20 26 31 38 40 43 52 62 65 76 80 86 95 104 124 130 152 155 172 190 208 215 247 248 260 304 310 344 380 403 430 494 496 520 559 589 620 688 760 806 811 817 860 988 1040 1118 1178 1235 1240 1333 1520 1612 1622 1634 1720 1976 2015 2236 2356 2470 2480 2666 2795 2945 3224 3244 3268 3440 3952 4030 4055 4085 4472 4712 4940 5332 5590 5890 6448 6488 6536 6665 7657 8060 8110 8170 8944 9424 9880 10543 10621 10664 11180 11780 12976 13072 13330 15314 15409 16120 16220 16340 17329 19760 21086 21242 21328 22360 23560 25141 25327 26660 30628 30818 32240 32440 32680 34658 34873 38285 42172 42484 44720 47120 50282 50654 52715 53105 53320 61256 61636 64880 65360 69316 69746 76570 77045 84344 84968 86645 100564 101308 105430 106210 106640 122512 123272 125705 126635 138632 139492 153140 154090 168688 169936 173290 174365 200317 201128 202616 210860 212420 246544 251410 253270 277264 278984 306280 308180 326833 329251 346580 348730 400634 402256 405232 421720 424840 453349 477679 502820 506540 557968 612560 616360 653666 658502 662587 693160 697460 801268 843440 849680 906698 955358 1001585 1005640 1013080 1081063 1232720 1307332 1317004 1325174 1386320 1394920 1602536 1634165 1646255 1813396 1910716 2003170 2011280 2026160 2162126 2266745 2388395 2614664 2634008 2650348 2789840 3205072 3268330 3292510 3312935 3626792 3821432 4006340 4324252 4533490 4776790 5229328 5268016 5300696 5405315 6209827 6536660 6585020 6625870 7253584 7642864 8012680 8613631 8648504 9066980 9553580 10601392 10810630 12419654 13073320 13170040 13251740 14053819 16025360 17227262 17297008 18133960 19107160 20540197 21621260 24839308 26146640 26340080 26503480 28107638 31049135 34454524 36267920 38214320 41080394 43068155 43242520 49678616 53006960 56215276 62098270 68909048 70269095 82160788 86136310 86485040 99357232 102700985 112430552 124196540 137818096 140538190 164321576 172272620 205401970 224861104 248393080 267022561 281076380 328643152 344545240 410803940 496786160 534045122 562152760 689090480 821607880 1068090244 1124305520 1335112805 1643215760 2136180488 2670225610 4272360976 5340451220 10680902440 21361804880
- Sum of all divisors σ(n): 59542855680
- Sum of proper divisors (its aliquot sum) s(n): 38181050800
- 21361804880 is an abundant number, because the sum of its proper divisors (38181050800) is greater than itself. Its abundance is 16819245920
Bases of 21361804880
- Binary: 100111110010100001101000110010100002
- Hexadecimal: 0x4F9434650
- Base-36: 9TA9M4W
Squares and roots of 21361804880
- 21361804880 squared (213618048802) is 456326707731191814400
- 21361804880 cubed (213618048803) is 9747962092086507029065974272000
-
The
square root of 21361804880 is 146156.7818474393 -
The
cube root of 21361804880 is 2774.6783656661
Scales and comparisons
How big is 21361804880?- 21,361,804,880 seconds is equal to 679 years, 12 weeks, 3 days, 2 hours, 41 minutes, 20 seconds.
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To count from 1 to 21,361,804,880 would take you about one thousand, three hundred fifty-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 21361804880 cubic inches would be around 231.2 feet tall.
Recreational maths with 21361804880
- 21361804880 backwards is 08840816312
- The number of decimal digits it has is: 11
- The sum of 21361804880's digits is 41
- More coming soon!
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