1998743040

Names of 1998743040

• Cardinal: 1998743040 can be written as One billion, nine hundred ninety-eight million, seven hundred forty-three thousand and forty.

Scientific notation

• Scientific notation: 1.99874304 × 10⁹

Factors of 1998743040

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 20
• Sum of prime factors: 34

Divisors of 1998743040

• Number of divisors d(n): 720
• Complete list of divisors:
  1 2 3 4 5 6 7 8 9 10 12 14 15 16 17 18 20 21 24 27 28 30 32 34 35 36 40 42 45 48 51 54 56 60 63 64 68 70 72 80 81 84 85 90 96 102 105 108 112 119 120 126 128 135 136 140 144 153 160 162 168 170 180 189 192 204 210 216 224 238 240 243 252 255 256 270 272 280 288 306 315 320 324 336 340 357 360 378 384 405 408 420 432 448 459 476 480 486 504 510 512 540 544 560 567 576 595 612 630 640 648 672 680 714 720 729 756 765 768 810 816 840 864 896 918 945 952 960 972 1008 1020 1071 1080 1088 1120 1134 1152 1190 1215 1224 1260 1280 1296 1344 1360 1377 1428 1440 1458 1512 1530 1536 1620 1632 1680 1701 1728 1785 1792 1836 1890 1904 1920 1944 2016 2040 2142 2160 2176 2187 2240 2268 2295 2304 2380 2430 2448 2520 2560 2592 2688 2720 2754 2835 2856 2880 2916 3024 3060 3213 3240 3264 3360 3402 3456 3570 3584 3645 3672 3780 3808 3840 3888 4032 4080 4131 4284 4320 4352 4374 4480 4536 4590 4608 4760 4860 4896 5040 5103 5184 5355 5376 5440 5508 5670 5712 5760 5832 6048 6120 6426 6480 6528 6561 6720 6804 6885 6912 7140 7290 7344 7560 7616 7680 7776 8064 8160 8262 8505 8568 8640 8704 8748 8960 9072 9180 9520 9639 9720 9792 10080 10206 10368 10710 10752 10880 10935 11016 11340 11424 11520 11664 12096 12240 12393 12852 12960 13056 13122 13440 13608 13770 13824 14280 14580 14688 15120 15232 15309 15552 16065 16128 16320 16524 17010 17136 17280 17496 17920 18144 18360 19040 19278 19440 19584 20160 20412 20655 20736 21420 21760 21870 22032 22680 22848 23040 23328 24192 24480 24786 25515 25704 25920 26112 26244 26880 27216 27540 28560 28917 29160 29376 30240 30464 30618 31104 32130 32256 32640 32805 33048 34020 34272 34560 34992 36288 36720 37179 38080 38556 38880 39168 40320 40824 41310 41472 42840 43520 43740 44064 45360 45696 45927 46656 48195 48384 48960 49572 51030 51408 51840 52488 53760 54432 55080 57120 57834 58320 58752 60480 60928 61236 61965 62208 64260 65280 65610 66096 68040 68544 69120 69984 72576 73440 74358 76160 76545 77112 77760 78336 80640 81648 82620 85680 86751 87480 88128 90720 91392 91854 93312 96390 96768 97920 99144 102060 102816 103680 104976 108864 110160 111537 114240 115668 116640 117504 120960 122472 123930 124416 128520 130560 131220 132192 136080 137088 139968 144585 145152 146880 148716 152320 153090 154224 155520 161280 163296 165240 171360 173502 174960 176256 181440 182784 183708 185895 186624 192780 195840 198288 204120 205632 207360 209952 217728 220320 223074 228480 229635 231336 233280 235008 241920 244944 247860 257040 260253 262440 264384 272160 274176 279936 289170 290304 293760 297432 304640 306180 308448 311040 326592 330480 342720 347004 349920 352512 362880 367416 371790 373248 385560 391680 396576 408240 411264 419904 433755 435456 440640 446148 456960 459270 462672 466560 483840 489888 495720 514080 520506 524880 528768 544320 548352 557685 559872 578340 587520 594864 612360 616896 622080 653184 660960 685440 694008 699840 705024 725760 734832 743580 771120 780759 793152 816480 822528 839808 867510 870912 881280 892296 913920 918540 925344 933120 979776 991440 1028160 1041012 1049760 1057536 1088640 1115370 1119744 1156680 1175040 1189728 1224720 1233792 1301265 1306368 1321920 1370880 1388016 1399680 1451520 1469664 1487160 1542240 1561518 1586304 1632960 1645056 1679616 1735020 1762560 1784592 1837080 1850688 1866240 1959552 1982880 2056320 2082024 2099520 2115072 2177280 2230740 2313360 2379456 2449440 2467584 2602530 2612736 2643840 2741760 2776032 2799360 2939328 2974320 3084480 3123036 3172608 3265920 3359232 3470040 3525120 3569184 3674160 3701376 3903795 3919104 3965760 4112640 4164048 4199040 4354560 4461480 4626720 4758912 4898880 4935168 5205060 5287680 5552064 5598720 5878656 5948640 6168960 6246072 6345216 6531840 6940080 7138368 7348320 7402752 7807590 7838208 7931520 8225280 8328096 8398080 8922960 9253440 9517824 9797760 10410120 10575360 11104128 11757312 11897280 12337920 12492144 13063680 13880160 14276736 14696640 14805504 15615180 15863040 16656192 16796160 17845920 18506880 19035648 19595520 20820240 22208256 23514624 23794560 24675840 24984288 27760320 28553472 29393280 31230360 31726080 33312384 35691840 37013760 39191040 41640480 44416512 47589120 49968576 55520640 57106944 58786560 62460720 66624768 71383680 74027520 83280960 95178240 99937152 111041280 117573120 124921440 133249536 142767360 166561920 199874304 222082560 249842880 285534720 333123840 399748608 499685760 666247680 999371520 1998743040
• Sum of all divisors σ(n): 8698184352
• Sum of proper divisors (its aliquot sum) s(n): 6699441312
• 1998743040 is an abundant number, because the sum of its proper divisors (6699441312) is greater than itself. Its abundance is 4700698272

Bases of 1998743040

• Binary: 1110111001000100110011000000000₂
• Hexadecimal: 0x77226600
• Base-36: X20000

Squares and roots of 1998743040

• 1998743040 squared (1998743040²) is 3994973739948441600
• 1998743040 cubed (1998743040³) is 7984925957704717606846464000
• The square root of 1998743040 is 44707.3041012317
• The cube root of 1998743040 is 1259.6570495203

Scales and comparisons

• 1,998,743,040 seconds is equal to 63 years, 28 weeks, 5 days, 14 hours, 24 minutes.
• To count from 1 to 1,998,743,040 would take you about one hundred twenty-seven 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 1998743040 cubic inches would be around 105 feet tall.

Recreational maths with 1998743040

• 1998743040 backwards is 0403478991
• 1998743040 is a Harshad number.
• The number of decimal digits it has is: 10
• The sum of 1998743040's digits is 45
• More coming soon!