21397559040

Names of 21397559040

• Cardinal: 21397559040 can be written as Twenty-one billion, three hundred ninety-seven million, five hundred fifty-nine thousand and forty.

Scientific notation

• Scientific notation: 2.139755904 × 10¹⁰

Factors of 21397559040

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 15
• Sum of prime factors: 484

Divisors of 21397559040

• Number of divisors d(n): 864
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 11 12 13 15 16 18 20 22 24 26 30 31 32 33 36 39 40 44 45 48 52 55 60 62 64 65 66 72 78 80 88 90 93 96 99 104 110 117 120 124 128 130 132 143 144 155 156 160 165 176 180 186 192 195 198 208 220 234 240 248 256 260 264 279 286 288 310 312 320 330 341 352 360 372 384 390 396 403 416 419 429 440 465 468 480 495 496 520 528 558 572 576 585 620 624 640 660 682 704 715 720 744 768 780 792 806 832 838 858 880 930 936 960 990 992 1023 1040 1056 1116 1144 1152 1170 1209 1240 1248 1257 1280 1287 1320 1364 1395 1408 1430 1440 1488 1560 1584 1612 1664 1676 1705 1716 1760 1860 1872 1920 1980 1984 2015 2046 2080 2095 2112 2145 2232 2288 2304 2340 2418 2480 2496 2514 2574 2640 2728 2790 2816 2860 2880 2976 3069 3120 3168 3224 3328 3352 3410 3432 3520 3627 3720 3744 3771 3840 3960 3968 4030 4092 4160 4190 4224 4290 4433 4464 4576 4609 4680 4836 4960 4992 5028 5115 5148 5280 5447 5456 5580 5720 5760 5952 6045 6138 6240 6285 6336 6435 6448 6704 6820 6864 7040 7254 7440 7488 7542 7920 7936 8060 8184 8320 8380 8448 8580 8866 8928 9152 9218 9360 9672 9920 9984 10056 10230 10296 10560 10894 10912 11160 11440 11520 11904 12090 12276 12480 12570 12672 12870 12896 12989 13299 13408 13640 13728 13827 14080 14508 14880 14976 15084 15345 15840 16120 16341 16368 16640 16760 17160 17732 17856 18135 18304 18436 18720 18855 19344 19840 20112 20460 20592 21120 21788 21824 22165 22320 22880 23045 23808 24180 24552 24960 25140 25344 25740 25792 25978 26598 26816 27235 27280 27456 27654 29016 29760 29952 30168 30690 31680 32240 32682 32736 33520 34320 35464 35712 36270 36608 36872 37440 37710 38688 38967 39680 39897 40224 40920 41184 41481 42240 43576 43648 44330 44640 45760 46090 48360 49023 49104 49920 50280 51480 51584 51956 53196 53632 54470 54560 54912 55308 58032 59520 59917 60336 61380 63360 64480 64945 65364 65472 66495 67040 68640 69135 70928 71424 72540 73744 74880 75420 77376 77934 79794 80448 81705 81840 82368 82962 87152 87296 88660 89280 91520 92180 96720 98046 98208 100560 102960 103168 103912 106392 107264 108940 109120 109824 110616 116064 116901 119040 119834 120672 122760 126720 128960 129890 130728 130944 132990 134080 137280 138270 141856 142879 145080 147488 149760 150840 154752 155868 159588 160896 163410 163680 164736 165924 168857 174304 177320 178560 179751 183040 184360 193440 194835 196092 196416 199485 201120 205920 207405 207824 212784 217880 218240 221232 232128 233802 239668 241344 245115 245520 257920 259780 261456 261888 265980 268160 274560 276540 283712 285758 290160 294976 299585 301680 309504 311736 319176 321792 326820 327360 329472 331848 337714 348608 354640 357120 359502 368720 386880 389670 392184 392832 398970 402240 411840 414810 415648 425568 428637 435760 436480 442464 464256 467604 479336 482688 490230 491040 506571 515840 519560 522912 531960 536320 539253 549120 553080 567424 571516 580320 584505 589952 599170 603360 623472 638352 653640 654720 663696 675428 697216 709280 714395 719004 737440 773760 779340 784368 785664 797940 804480 823680 829620 831296 844285 851136 857274 871520 884928 898755 928512 935208 958672 965376 980460 982080 1013142 1039120 1045824 1063920 1078506 1106160 1134848 1143032 1160640 1169010 1179904 1198340 1206720 1246944 1276704 1285911 1307280 1309440 1327392 1350856 1394432 1418560 1428790 1438008 1474880 1519713 1547520 1558680 1568736 1595880 1608960 1647360 1659240 1662592 1688570 1702272 1714548 1743040 1769856 1797510 1857427 1870416 1917344 1960920 1964160 2026284 2078240 2091648 2127840 2143185 2157012 2212320 2286064 2321280 2338020 2396680 2413440 2493888 2532855 2553408 2571822 2614560 2654784 2696265 2701712 2837120 2857580 2876016 2949760 3039426 3117360 3137472 3191760 3318480 3325184 3377140 3404544 3429096 3486080 3539712 3595020 3714854 3740832 3834688 3921840 3928320 4052568 4156480 4183296 4255680 4286370 4314024 4424640 4572128 4642560 4676040 4793360 4826880 4987776 5065710 5106816 5143644 5229120 5309568 5392530 5403424 5572281 5674240 5715160 5752032 5899520 6078852 6234720 6274944 6383520 6429555 6636960 6754280 6858192 6972160 7190040 7429708 7481664 7598565 7669376 7843680 8105136 8312960 8511360 8572740 8628048 8849280 9144256 9287135 9352080 9586720 9975552 10131420 10213632 10287288 10458240 10619136 10785060 10806848 11144562 11430320 11504064 12157704 12469440 12549888 12767040 12859110 13273920 13508560 13716384 14380080 14859416 14963328 15197130 15338752 15687360 16210272 16625920 16716843 17022720 17145480 17256096 17698560 18288512 18574270 18704160 19173440 20262840 20574576 20916480 21570120 21613696 22289124 22860640 23008128 24315408 24938880 25534080 25718220 26547840 27017120 27432768 27861405 28760160 29718832 29926656 30394260 31374720 32420544 33433686 34290960 34512192 36577024 37148540 37408320 38346880 40525680 41149152 43140240 43227392 44578248 45721280 46016256 48630816 49877760 51068160 51436440 53095680 54034240 54865536 55722810 57520320 59437664 60788520 62749440 64841088 66867372 68581920 69024384 74297080 74816640 76693760 81051360 82298304 83584215 86280480 89156496 91442560 97261632 102872880 108068480 109731072 111445620 115040640 118875328 121577040 129682176 133734744 137163840 138048768 148594160 149633280 162102720 164596608 167168430 172560960 178312992 182885120 194523264 205745760 216136960 222891240 230081280 237750656 243154080 267469488 274327680 297188320 324205440 329193216 334336860 345121920 356625984 389046528 411491520 445782480 475501312 486308160 534938976 548655360 594376640 648410880 668673720 690243840 713251968 822983040 891564960 972616320 1069877952 1188753280 1337347440 1426503936 1645966080 1783129920 1945232640 2139755904 2377506560 2674694880 3566259840 4279511808 5349389760 7132519680 10698779520 21397559040
• Sum of all divisors σ(n): 89996175360
• Sum of proper divisors (its aliquot sum) s(n): 68598616320
• 21397559040 is an abundant number, because the sum of its proper divisors (68598616320) is greater than itself. Its abundance is 47201057280

Bases of 21397559040

• Binary: 10011111011011001001101011100000000₂
• Hexadecimal: 0x4FB64D700
• Base-36: 9TVJY80

Squares and roots of 21397559040

• 21397559040 squared (21397559040²) is 457855532870285721600
• 21397559040 cubed (21397559040³) is 9796990796382599389605003264000
• The square root of 21397559040 is 146279.0451158333
• The cube root of 21397559040 is 2776.2255351369

Scales and comparisons

• 21,397,559,040 seconds is equal to 680 years, 19 weeks, 3 days, 22 hours, 24 minutes.
• To count from 1 to 21,397,559,040 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 21397559040 cubic inches would be around 231.4 feet tall.

Recreational maths with 21397559040

• 21397559040 backwards is 04095579312
• 21397559040 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21397559040's digits is 45
• More coming soon!