21318537729251840
21,318,537,729,251,840 is an even composite number composed of eight prime numbers multiplied together.
21318537729251840 is an even composite number. It is composed of eight distinct prime numbers multiplied together. It has a total of one thousand, nine hundred twenty divisors.
Prime factorization of 21318537729251840:
29 × 5 × 72 × 11 × 23 × 53 × 941 × 13469
(2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 5 × 7 × 7 × 11 × 23 × 53 × 941 × 13469)See below for interesting mathematical facts about the number 21318537729251840 from the Numbermatics database.
Names of 21318537729251840
- Cardinal: 21318537729251840 can be written as Twenty-one quadrillion, three hundred eighteen trillion, five hundred thirty-seven billion, seven hundred twenty-nine million, two hundred fifty-one thousand, eight hundred forty.
Scientific notation
- Scientific notation: 2.131853772925184 × 1016
Factors of 21318537729251840
Divisors of 21318537729251840
- Number of divisors d(n): 1920
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Complete list of divisors:
1 2 4 5 7 8 10 11 14 16 20 22 23 28 32 35 40 44 46 49 53 55 56 64 70 77 80 88 92 98 106 110 112 115 128 140 154 160 161 176 184 196 212 220 224 230 245 253 256 265 280 308 320 322 352 368 371 385 392 424 440 448 460 490 506 512 530 539 560 583 616 640 644 704 736 742 770 784 805 848 880 896 920 941 980 1012 1060 1078 1120 1127 1166 1219 1232 1265 1280 1288 1408 1472 1484 1540 1568 1610 1696 1760 1771 1792 1840 1855 1882 1960 2024 2120 2156 2240 2254 2332 2438 2464 2530 2560 2576 2597 2695 2816 2915 2944 2968 3080 3136 3220 3392 3520 3542 3584 3680 3710 3764 3920 4048 4081 4240 4312 4480 4508 4664 4705 4876 4928 5060 5152 5194 5390 5632 5635 5830 5888 5936 6095 6160 6272 6440 6587 6784 7040 7084 7360 7420 7528 7840 8096 8162 8480 8533 8624 8855 8960 9016 9328 9410 9752 9856 10120 10304 10351 10388 10780 11270 11660 11776 11872 12190 12320 12397 12544 12880 12985 13174 13409 13469 13568 14080 14168 14720 14840 15056 15680 16192 16324 16960 17066 17248 17710 17920 18032 18656 18820 19504 19712 20240 20405 20608 20702 20776 21560 21643 22540 23320 23744 24380 24640 24794 25088 25760 25970 26348 26818 26938 27136 28160 28336 28567 29440 29680 30112 31360 32384 32648 32935 33920 34132 34496 35420 36064 37312 37640 39008 39424 40480 40810 41216 41404 41552 42665 43120 43286 45080 46109 46640 47488 48760 49280 49588 49873 51520 51755 51940 52696 53636 53876 56672 57134 58880 59360 59731 60224 61985 62720 64768 65296 65870 67045 67345 67840 68264 68992 70840 72128 72457 74624 75280 78016 80960 81620 82432 82808 83104 85330 86240 86572 90160 92218 93280 93863 94283 94976 97520 98560 99176 99746 103040 103510 103880 105392 107272 107752 108215 113344 114268 118720 119462 120448 123970 125440 129536 130592 131740 134090 134690 135680 136528 137984 141680 142835 144256 144914 148159 149248 150560 151501 156032 161920 163240 165616 166208 170660 172480 173144 180320 184436 186560 187726 188566 189952 195040 197120 198352 199492 206080 207020 207760 210784 214544 215504 216430 226688 228536 230545 237440 238073 238924 240896 247940 249365 261184 263480 268180 269380 273056 275968 283360 285670 288512 289828 296318 298496 298655 301120 303002 309787 312064 323840 326480 331232 332416 341320 344960 346288 349111 360640 362285 368872 373120 375452 377132 390080 396704 398984 412160 414040 415520 421568 429088 431008 432860 453376 457072 461090 469315 471415 474880 476146 477848 481792 495880 498730 507199 522368 526960 536360 538760 546112 548603 566720 571340 577024 579656 592636 597310 602240 606004 619574 624128 647680 652960 657041 659981 662464 664832 682640 689920 692576 698222 713857 721280 724570 737744 740795 746240 750904 754264 757505 780160 793408 797968 828080 831040 843136 858176 862016 865720 906752 914144 922180 938630 942830 949760 952292 955696 991760 997460 1014398 1037113 1044736 1053920 1060507 1072720 1077520 1092224 1097206 1133440 1142680 1147079 1159312 1185272 1190365 1194620 1204480 1212008 1239148 1305920 1314082 1319962 1324928 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138432063176960 152275269494656 166551076009780 185378588950016 190344086868320 193804888447744 201118280464640 217536099278080 231723236187520 242256110559680 266481721615648 276864126353920 304550538989312 333102152019560 380688173736640 387609776895488 402236560929280 435072198556160 463446472375040 484512221119360 532963443231296 609101077978624 666204304039120 761376347473280 926892944750080 969024442238720 1065926886462592 1332408608078240 1522752694946560 1938048884477440 2131853772925184 2664817216156480 3045505389893120 4263707545850368 5329634432312960 10659268864625920 21318537729251840
- Sum of all divisors σ(n): 69040906639879680
- Sum of proper divisors (its aliquot sum) s(n): 47722368910627840
- 21318537729251840 is an abundant number, because the sum of its proper divisors (47722368910627840) is greater than itself. Its abundance is 26403831181376000
Bases of 21318537729251840
- Binary: 10010111011110100011000110111000111101110011010000000002
- Hexadecimal: 0x4BBD18DC7B9A00
- Base-36: 5TWSH13NW8W
Squares and roots of 21318537729251840
- 21318537729251840 squared (213185377292518402) is 454480050913534198524406143385600
- 21318537729251840 cubed (213185377292518403) is 9688850112592475983996392947641683838452629504000
-
The
square root of 21318537729251840 is 146008690.5949499981 -
The
cube root of 21318537729251840 is 277280.3780437887
Scales and comparisons
How big is 21318537729251840?- 21,318,537,729,251,840 seconds is equal to 677,863,557 years, 11 weeks, 4 days, 7 hours, 17 minutes, 20 seconds.
-
To count from 1 to 21,318,537,729,251,840 would take you about two billion, thirty-three million, five hundred ninety thousand, six hundred seventy-one 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 21318537729251840 cubic inches would be around 23106.7 feet tall.
Recreational maths with 21318537729251840
- 21318537729251840 backwards is 04815292773581312
- The number of decimal digits it has is: 17
- The sum of 21318537729251840's digits is 68
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The information we have on file for 21318537729251840 includes mathematical data and numerical statistics calculated using standard algorithms and methods. We are adding more all the time. If there are any features you would like to see, please contact us. Information provided for educational use, intellectual curiosity and fun!
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