18239749920

Names of 18239749920

• Cardinal: 18239749920 can be written as Eighteen billion, two hundred thirty-nine million, seven hundred forty-nine thousand, nine hundred twenty.

Scientific notation

• Scientific notation: 1.823974992 × 10¹⁰

Factors of 18239749920

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 3757

Divisors of 18239749920

• Number of divisors d(n): 288
• Complete list of divisors:
  1 2 3 4 5 6 7 8 9 10 12 14 15 16 18 20 21 24 28 30 32 35 36 40 42 45 48 56 60 63 70 72 80 84 90 96 105 112 120 126 140 144 160 168 180 210 224 240 252 280 288 315 336 360 420 480 504 560 571 630 672 720 840 1008 1120 1142 1260 1440 1680 1713 2016 2284 2520 2855 3169 3360 3426 3997 4568 5040 5139 5710 6338 6852 7994 8565 9136 9507 10080 10278 11420 11991 12676 13704 15845 15988 17130 18272 19014 19985 20556 22183 22840 23982 25352 25695 27408 28521 31690 31976 34260 35973 38028 39970 41112 44366 45680 47535 47964 50704 51390 54816 57042 59955 63380 63952 66549 68520 71946 76056 79940 82224 88732 91360 95070 95928 101408 102780 110915 114084 119910 126760 127904 133098 137040 142605 143892 152112 159880 164448 177464 179865 190140 191856 199647 205560 221830 228168 239820 253520 266196 274080 285210 287784 304224 319760 332745 354928 359730 380280 383712 399294 411120 443660 456336 479640 507040 532392 570420 575568 639520 665490 709856 719460 760560 798588 822240 887320 912672 959280 998235 1064784 1140840 1151136 1330980 1438920 1521120 1597176 1774640 1809499 1918560 1996470 2129568 2281680 2661960 2877840 3194352 3549280 3618998 3992940 4563360 5323920 5428497 5755680 6388704 7237996 7985880 9047495 10647840 10856994 12666493 14475992 15971760 16285491 18094990 21713988 25332986 27142485 28951984 31943520 32570982 36189980 37999479 43427976 50665972 54284970 57903968 63332465 65141964 72379960 75998958 81427455 86855952 101331944 108569940 113998437 126664930 130283928 144759920 151997916 162854910 173711904 189997395 202663888 217139880 227996874 253329860 260567856 289519840 303995832 325709820 379994790 405327776 434279760 455993748 506659720 521135712 569992185 607991664 651419640 759989580 868559520 911987496 1013319440 1139984370 1215983328 1302839280 1519979160 1823974992 2026638880 2279968740 2605678560 3039958320 3647949984 4559937480 6079916640 9119874960 18239749920
• Sum of all divisors σ(n): 71282090880
• Sum of proper divisors (its aliquot sum) s(n): 53042340960
• 18239749920 is an abundant number, because the sum of its proper divisors (53042340960) is greater than itself. Its abundance is 34802591040

Bases of 18239749920

• Binary: 10000111111001011000111111100100000₂
• Hexadecimal: 0x43F2C7F20
• Base-36: 8DNH540

Squares and roots of 18239749920

• 18239749920 squared (18239749920²) is 332688477144140006400
• 18239749920 cubed (18239749920³) is 6068154624374749510203199488000
• The square root of 18239749920 is 135054.6182846037
• The cube root of 18239749920 is 2632.3257157963

Scales and comparisons

• 18,239,749,920 seconds is equal to 579 years, 50 weeks, 2 days, 5 hours, 12 minutes.
• To count from 1 to 18,239,749,920 would take you about one thousand, one hundred fifty-nine 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 18239749920 cubic inches would be around 219.4 feet tall.

Recreational maths with 18239749920

• 18239749920 backwards is 02994793281
• The number of decimal digits it has is: 11
• The sum of 18239749920's digits is 54
• More coming soon!