21093747840

Names of 21093747840

• Cardinal: 21093747840 can be written as Twenty-one billion, ninety-three million, seven hundred forty-seven thousand, eight hundred forty.

Scientific notation

• Scientific notation: 2.109374784 × 10¹⁰

Factors of 21093747840

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 15
• Sum of prime factors: 613

Divisors of 21093747840

• Number of divisors d(n): 640
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 11 12 15 16 18 20 22 24 27 30 32 33 36 40 44 45 48 54 55 60 64 66 71 72 80 81 88 90 96 99 108 110 120 128 132 135 142 144 160 162 165 176 180 192 198 213 216 220 240 264 270 284 288 297 320 324 330 352 355 360 384 396 405 426 432 440 480 495 521 528 540 568 576 594 639 640 648 660 704 710 720 781 792 810 852 864 880 891 960 990 1042 1056 1065 1080 1136 1152 1188 1278 1296 1320 1408 1420 1440 1485 1562 1563 1584 1620 1704 1728 1760 1782 1917 1920 1980 2084 2112 2130 2160 2272 2343 2376 2556 2592 2605 2640 2840 2880 2970 3124 3126 3168 3195 3240 3408 3456 3520 3564 3834 3905 3960 4168 4224 4260 4320 4455 4544 4686 4689 4752 5112 5184 5210 5280 5680 5731 5751 5760 5940 6248 6252 6336 6390 6480 6816 7029 7040 7128 7668 7810 7815 7920 8336 8520 8640 8910 9088 9372 9378 9504 9585 10224 10368 10420 10560 11360 11462 11502 11715 11880 12496 12504 12672 12780 12960 13632 14058 14067 14256 15336 15620 15630 15840 16672 17040 17193 17280 17820 18744 18756 19008 19170 20448 20840 21087 21120 22720 22924 23004 23430 23445 23760 24992 25008 25560 25920 27264 28116 28134 28512 28655 28755 30672 31240 31260 31680 33344 34080 34386 35145 35640 36991 37488 37512 38016 38340 40896 41680 42174 42201 45440 45848 46008 46860 46890 47520 49984 50016 51120 51579 51840 56232 56268 57024 57310 57510 61344 62480 62520 63261 63360 66688 68160 68772 70290 70335 71280 73982 74976 75024 76680 81792 83360 84348 84402 85965 91696 92016 93720 93780 95040 99968 100032 102240 103158 105435 110973 112464 112536 114048 114620 115020 122688 124960 125040 126522 136320 137544 140580 140670 142560 147964 149952 150048 153360 154737 166720 168696 168804 171930 183392 184032 184955 187440 187560 190080 200064 204480 206316 210870 211005 221946 224928 225072 229240 230040 245376 249920 250080 253044 257895 275088 281160 281340 285120 295928 299904 300096 306720 309474 316305 332919 333440 337392 337608 343860 366784 368064 369910 374880 375120 406901 408960 412632 421740 422010 443892 449856 450144 458480 460080 464211 499840 500160 506088 515790 550176 554865 562320 562680 570240 591856 600192 613440 618948 632610 665838 674784 675216 687720 733568 736128 739820 749760 750240 773685 813802 825264 843480 844020 887784 899712 900288 916960 920160 928422 998757 1000320 1012176 1031580 1100352 1109730 1124640 1125360 1183712 1220703 1226880 1237896 1265220 1331676 1349568 1350432 1375440 1479640 1499520 1500480 1547370 1627604 1650528 1664595 1686960 1688040 1775568 1800576 1833920 1840320 1856844 1997514 2024352 2034505 2063160 2200704 2219460 2249280 2250720 2321055 2367424 2441406 2475792 2530440 2663352 2699136 2700864 2750880 2959280 2996271 3000960 3094740 3255208 3301056 3329190 3373920 3376080 3551136 3662109 3667840 3680640 3713688 3995028 4048704 4069010 4126320 4438920 4498560 4501440 4642110 4734848 4882812 4951584 4993785 5060880 5326704 5401728 5501760 5918560 5992542 6103515 6189480 6510416 6602112 6658380 6747840 6752160 7102272 7324218 7427376 7990056 8097408 8138020 8252640 8877840 9002880 9284220 9765624 9903168 9987570 10121760 10653408 10986327 11003520 11837120 11985084 12207030 12378960 13020832 13316760 13495680 13504320 14204544 14648436 14854752 14981355 15980112 16276040 16505280 17755680 18310545 18568440 19531248 19806336 19975140 20243520 21306816 21972654 23674240 23970168 24414060 24757920 26041664 26633520 27008640 29296872 29709504 29962710 31960224 32552080 32958981 33010560 35511360 36621090 37136880 39062496 39950280 40487040 42613632 43945308 47940336 48828120 49515840 52083328 53267040 54931635 58593744 59419008 59925420 63920448 65104160 65917962 71022720 73242180 74273760 78124992 79900560 87890616 95880672 97656240 99031680 106534080 109863270 117187488 119850840 127840896 130208320 131835924 146484360 148547520 156249984 159801120 164794905 175781232 191761344 195312480 213068160 219726540 234374976 239701680 260416640 263671848 292968720 297095040 319602240 329589810 351562464 383522688 390624960 439453080 468749952 479403360 527343696 585937440 639204480 659179620 703124928 781249920 878906160 958806720 1054687392 1171874880 1318359240 1406249856 1757812320 1917613440 2109374784 2343749760 2636718480 3515624640 4218749568 5273436960 7031249280 10546873920 21093747840
• Sum of all divisors σ(n): 83495111040
• Sum of proper divisors (its aliquot sum) s(n): 62401363200
• 21093747840 is an abundant number, because the sum of its proper divisors (62401363200) is greater than itself. Its abundance is 41307615360

Bases of 21093747840

• Binary: 10011101001010010010000110010000000₂
• Hexadecimal: 0x4E9490C80
• Base-36: 9OUO800

Squares and roots of 21093747840

• 21093747840 squared (21093747840²) is 444946197937504665600
• 21093747840 cubed (21093747840³) is 9385582901660451494989922304000
• The square root of 21093747840 is 145236.8680466499
• The cube root of 21093747840 is 2763.0235296691

Scales and comparisons

• 21,093,747,840 seconds is equal to 670 years, 37 weeks, 1 day, 14 hours, 24 minutes.
• To count from 1 to 21,093,747,840 would take you about one thousand, three hundred forty-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 21093747840 cubic inches would be around 230.3 feet tall.

Recreational maths with 21093747840

• 21093747840 backwards is 04874739012
• 21093747840 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21093747840's digits is 45
• More coming soon!