21009727440
21,009,727,440 is an even composite number composed of seven prime numbers multiplied together.
21009727440 is an even composite number. It is composed of seven distinct prime numbers multiplied together. It has a total of seven hundred twenty divisors.
Prime factorization of 21009727440:
24 × 32 × 5 × 13 × 17 × 292 × 157
(2 × 2 × 2 × 2 × 3 × 3 × 5 × 13 × 17 × 29 × 29 × 157)See below for interesting mathematical facts about the number 21009727440 from the Numbermatics database.
Names of 21009727440
- Cardinal: 21009727440 can be written as Twenty-one billion, nine million, seven hundred twenty-seven thousand, four hundred forty.
Scientific notation
- Scientific notation: 2.100972744 × 1010
Factors of 21009727440
Divisors of 21009727440
- Number of divisors d(n): 720
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Complete list of divisors:
1 2 3 4 5 6 8 9 10 12 13 15 16 17 18 20 24 26 29 30 34 36 39 40 45 48 51 52 58 60 65 68 72 78 80 85 87 90 102 104 116 117 120 130 136 144 145 153 156 157 170 174 180 195 204 208 221 232 234 240 255 260 261 272 290 306 312 314 340 348 360 377 390 408 435 442 464 468 471 493 510 520 522 580 585 612 624 628 663 680 696 720 754 765 780 785 816 841 870 884 936 942 986 1020 1040 1044 1105 1131 1160 1170 1224 1256 1305 1326 1360 1392 1413 1479 1508 1530 1560 1570 1682 1740 1768 1872 1884 1885 1972 1989 2040 2041 2088 2210 2262 2320 2340 2355 2448 2465 2512 2523 2610 2652 2669 2826 2958 3016 3060 3120 3140 3315 3364 3393 3480 3536 3768 3770 3944 3978 4080 4082 4176 4205 4420 4437 4524 4553 4680 4710 4930 5046 5220 5304 5338 5652 5655 5916 6032 6120 6123 6280 6409 6630 6728 6786 6960 7065 7395 7536 7540 7569 7888 7956 8007 8164 8410 8840 8874 9048 9106 9360 9420 9860 9945 10092 10205 10440 10608 10676 10933 11304 11310 11832 12240 12246 12560 12615 12818 13260 13345 13456 13572 13659 14130 14297 14790 15080 15138 15912 16014 16328 16820 16965 17680 17748 18096 18212 18369 18840 19227 19720 19890 20184 20410 20880 21352 21866 22185 22608 22620 22765 23664 24021 24492 25230 25636 26520 26690 27144 27318 28260 28594 29580 30160 30276 30615 31824 32028 32045 32656 32799 33640 33930 34697 35496 36424 36738 37680 37845 38454 39440 39780 40035 40368 40820 40977 42704 42891 43732 44370 45240 45530 48042 48984 50460 51272 53040 53380 54288 54636 54665 56520 57188 57681 59160 59189 60552 61230 64056 64090 65598 67280 67860 68295 69394 70992 71485 72848 73476 75690 76908 77401 79560 80070 81640 81954 85782 87464 88740 90480 91060 91845 96084 96135 97968 98397 100920 102544 104091 106760 109272 109330 113040 114376 115362 118320 118378 120105 121104 122460 128112 128180 128673 131196 132037 135720 136590 138788 142970 146952 151380 153816 154802 159120 160140 163280 163908 163995 171564 173485 174928 177480 177567 182120 183690 185861 192168 192270 196794 201840 204885 208182 213520 214455 218544 218660 228752 230724 232203 236756 240210 244920 256360 257346 262392 264074 271440 273180 277576 285940 288405 293904 295945 302760 307632 309604 312273 320280 327816 327990 343128 346970 354960 355134 364240 367380 371722 384336 384540 387005 393588 396111 409770 416364 428910 437320 461448 464406 473512 480420 489840 491985 512720 514692 520455 524784 528148 532701 546360 555152 557583 571880 576810 591890 605520 619208 624546 640560 643365 655632 655980 660185 686256 693940 696609 710268 734760 743444 769080 774010 787176 792222 819540 832728 857820 874640 887835 922896 928812 929305 947024 960840 983970 1006213 1029384 1040910 1056296 1065402 1092720 1115166 1143760 1153620 1161015 1183780 1188333 1238416 1249092 1286730 1311960 1320370 1387880 1393218 1420536 1469520 1486888 1538160 1548020 1561365 1574352 1584444 1639080 1665456 1672749 1715640 1716481 1775670 1857624 1858610 1921680 1967940 1980555 2012426 2058768 2081820 2112592 2130804 2230332 2244629 2307240 2322030 2367560 2376666 2498184 2573460 2623920 2640740 2663505 2775760 2786436 2787915 2841072 2973776 3018639 3096040 3122730 3168888 3278160 3345498 3431280 3432962 3483045 3551340 3715248 3717220 3935880 3961110 4024852 4163640 4261608 4460664 4489258 4614480 4644060 4735120 4753332 4996368 5031065 5146920 5149443 5281480 5327010 5572872 5575830 5941665 6037278 6192080 6245460 6337776 6690996 6733887 6865924 6966090 7102680 7434440 7871760 7922220 8049704 8327280 8363745 8523216 8582405 8921328 8978516 9055917 9288120 9506664 10062130 10293840 10298886 10562960 10654020 11145744 11151660 11223145 11883330 12074556 12490920 13381992 13467774 13731848 13932180 14205360 14868880 15093195 15448329 15844440 16099408 16727490 17164810 17957032 18111834 18576240 19013328 20124260 20201661 20597772 21308040 22303320 22446290 23766660 24149112 24981840 25747215 26763984 26935548 27463696 27864360 29180177 30186390 30896658 31688880 33454980 33669435 34329620 35914064 36223668 40248520 40403322 41195544 42616080 44606640 44892580 45279585 47533320 48298224 51494430 53871096 55728720 58360354 60372780 61793316 66909960 67338870 68659240 72447336 77241645 80497040 80806644 82391088 87540531 89785160 90559170 95066640 101008305 102988860 107742192 116720708 120745560 123586632 133819920 134677740 137318480 144894672 145900885 154483290 161613288 175081062 179570320 181118340 202016610 205977720 233441416 241491120 247173264 262621593 269355480 291801770 308966580 323226576 350162124 362236680 404033220 411955440 437702655 466882832 525243186 538710960 583603540 617933160 700324248 724473360 808066440 875405310 1050486372 1167207080 1235866320 1313107965 1400648496 1616132880 1750810620 2100972744 2334414160 2626215930 3501621240 4201945488 5252431860 7003242480 10504863720 21009727440
- Sum of all divisors σ(n): 83855601648
- Sum of proper divisors (its aliquot sum) s(n): 62845874208
- 21009727440 is an abundant number, because the sum of its proper divisors (62845874208) is greater than itself. Its abundance is 41836146768
Bases of 21009727440
- Binary: 100111001000100011011111111110100002
- Hexadecimal: 0x4E446FFD0
- Base-36: 9NGNDG0
Squares and roots of 21009727440
- 21009727440 squared (210097274402) is 441408647103088953600
- 21009727440 cubed (210097274403) is 9273875365295044497210806784000
-
The
square root of 21009727440 is 144947.3264327423 -
The
cube root of 21009727440 is 2759.3500990269
Scales and comparisons
How big is 21009727440?- 21,009,727,440 seconds is equal to 668 years, 2 weeks, 2 days, 3 hours, 24 minutes.
-
To count from 1 to 21,009,727,440 would take you about one thousand, three hundred thirty-six 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 21009727440 cubic inches would be around 229.9 feet tall.
Recreational maths with 21009727440
- 21009727440 backwards is 04472790012
- 21009727440 is a
Harshad number . - The number of decimal digits it has is: 11
- The sum of 21009727440's digits is 36
- More coming soon!
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The information we have on file for 21009727440 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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