21388931200
21,388,931,200 is an even composite number composed of five prime numbers multiplied together.
21388931200 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of three hundred eighty-four divisors.
Prime factorization of 21388931200:
27 × 52 × 73 × 13 × 1499
(2 × 2 × 2 × 2 × 2 × 2 × 2 × 5 × 5 × 7 × 7 × 7 × 13 × 1499)See below for interesting mathematical facts about the number 21388931200 from the Numbermatics database.
Names of 21388931200
- Cardinal: 21388931200 can be written as Twenty-one billion, three hundred eighty-eight million, nine hundred thirty-one thousand, two hundred.
Scientific notation
- Scientific notation: 2.13889312 × 1010
Factors of 21388931200
Divisors of 21388931200
- Number of divisors d(n): 384
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Complete list of divisors:
1 2 4 5 7 8 10 13 14 16 20 25 26 28 32 35 40 49 50 52 56 64 65 70 80 91 98 100 104 112 128 130 140 160 175 182 196 200 208 224 245 260 280 320 325 343 350 364 392 400 416 448 455 490 520 560 637 640 650 686 700 728 784 800 832 896 910 980 1040 1120 1225 1274 1300 1372 1400 1456 1499 1568 1600 1664 1715 1820 1960 2080 2240 2275 2450 2548 2600 2744 2800 2912 2998 3136 3185 3200 3430 3640 3920 4160 4459 4480 4550 4900 5096 5200 5488 5600 5824 5996 6272 6370 6860 7280 7495 7840 8320 8575 8918 9100 9800 10192 10400 10493 10976 11200 11648 11992 12740 13720 14560 14990 15680 15925 17150 17836 18200 19487 19600 20384 20800 20986 21952 22295 22400 23984 25480 27440 29120 29980 31360 31850 34300 35672 36400 37475 38974 39200 40768 41600 41972 43904 44590 47968 50960 52465 54880 58240 59960 63700 68600 71344 72800 73451 74950 77948 78400 81536 83944 89180 95936 97435 101920 104930 109760 111475 119920 127400 136409 137200 142688 145600 146902 149900 155896 156800 167888 178360 191872 194870 203840 209860 219520 222950 239840 254800 262325 272818 274400 285376 291200 293804 299800 311792 335776 356720 367255 389740 407680 419720 445900 479680 487175 509600 514157 524650 545636 548800 570752 587608 599600 623584 671552 682045 713440 734510 779480 839440 891800 954863 959360 974350 1019200 1028314 1049300 1091272 1097600 1175216 1199200 1247168 1343104 1364090 1426880 1469020 1558960 1678880 1783600 1836275 1909726 1948700 2038400 2056628 2098600 2182544 2350432 2398400 2494336 2570785 2728180 2853760 2938040 3117920 3357760 3410225 3567200 3672550 3819452 3897400 4113256 4197200 4365088 4700864 4774315 4796800 5141570 5456360 5876080 6235840 6684041 6715520 6820450 7134400 7345100 7638904 7794800 8226512 8394400 8730176 9401728 9548630 10283140 10912720 11752160 12471680 12853925 13368082 13640900 14268800 14690200 15277808 15589600 16453024 16788800 17460352 19097260 20566280 21825440 23504320 23871575 25707850 26736164 27281800 29380400 30555616 31179200 32906048 33420205 33577600 38194520 41132560 43650880 47008640 47743150 51415700 53472328 54563600 58760800 61111232 62358400 65812096 66840410 76389040 82265120 87301760 95486300 102831400 106944656 109127200 117521600 122222464 133680820 152778080 164530240 167101025 190972600 205662800 213889312 218254400 235043200 267361640 305556160 329060480 334202050 381945200 411325600 427778624 436508800 534723280 611112320 668404100 763890400 822651200 855557248 1069446560 1336808200 1527780800 1645302400 2138893120 2673616400 3055561600 4277786240 5347232800 10694465600 21388931200
- Sum of all divisors σ(n): 66402000000
- Sum of proper divisors (its aliquot sum) s(n): 45013068800
- 21388931200 is an abundant number, because the sum of its proper divisors (45013068800) is greater than itself. Its abundance is 23624137600
Bases of 21388931200
- Binary: 100111110101110000100110000100000002
- Hexadecimal: 0x4FAE13080
- Base-36: 9TQF0XS
Squares and roots of 21388931200
- 21388931200 squared (213889312002) is 457486377878333440000
- 21388931200 cubed (213889312003) is 9785144661376875918819328000000
-
The
square root of 21388931200 is 146249.5511104221 -
The
cube root of 21388931200 is 2775.8523453759
Scales and comparisons
How big is 21388931200?- 21,388,931,200 seconds is equal to 680 years, 5 weeks, 2 days, 1 hour, 46 minutes, 40 seconds.
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To count from 1 to 21,388,931,200 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 21388931200 cubic inches would be around 231.3 feet tall.
Recreational maths with 21388931200
- 21388931200 backwards is 00213988312
- The number of decimal digits it has is: 11
- The sum of 21388931200's digits is 37
- More coming soon!
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