18406853920

Names of 18406853920

• Cardinal: 18406853920 can be written as Eighteen billion, four hundred six million, eight hundred fifty-three thousand, nine hundred twenty.

Scientific notation

• Scientific notation: 1.840685392 × 10¹⁰

Factors of 18406853920

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 917

Divisors of 18406853920

• Number of divisors d(n): 288
• Complete list of divisors:
  1 2 4 5 7 8 10 13 14 16 20 26 28 32 35 40 49 52 56 65 70 80 91 98 104 112 130 140 160 182 196 208 224 245 260 280 313 364 392 416 455 490 520 560 577 626 637 728 784 910 980 1040 1120 1154 1252 1274 1456 1565 1568 1820 1960 2080 2191 2308 2504 2548 2885 2912 3130 3185 3640 3920 4039 4069 4382 4616 5008 5096 5770 6260 6370 7280 7501 7840 8078 8138 8764 9232 10016 10192 10955 11540 12520 12740 14560 15002 15337 16156 16276 17528 18464 20195 20345 20384 21910 23080 25040 25480 28273 28483 30004 30674 32312 32552 35056 37505 40390 40690 43820 46160 50080 50960 52507 56546 56966 60008 61348 64624 65104 70112 75010 76685 80780 81380 87640 92320 101920 105014 113092 113932 120016 122696 129248 130208 141365 142415 150020 153370 161560 162760 175280 180601 199381 210028 226184 227864 240032 245392 262535 282730 284830 300040 306740 323120 325520 350560 361202 367549 398762 420056 452368 455728 490784 525070 565460 569660 600080 613480 646240 651040 722404 735098 797524 840112 903005 904736 911456 996905 1050140 1130920 1139320 1200160 1226960 1264207 1444808 1470196 1595048 1680224 1806010 1837745 1993810 2100280 2261840 2278640 2347813 2453920 2528414 2889616 2940392 3190096 3612020 3675490 3987620 4200560 4523680 4557280 4695626 5056828 5779232 5880784 6321035 6380192 7224040 7350980 7975240 8401120 8849449 9391252 10113656 11739065 11761568 12642070 14448080 14701960 15950480 16434691 17698898 18782504 20227312 23478130 25284140 28896160 29403920 31900960 32869382 35397796 37565008 40454624 44247245 46956260 50568280 58807840 65738764 70795592 75130016 82173455 88494490 93912520 101136560 115042837 131477528 141591184 164346910 176988980 187825040 202273120 230085674 262955056 283182368 328693820 353977960 375650080 460171348 525910112 575214185 657387640 707955920 920342696 1150428370 1314775280 1415911840 1840685392 2300856740 2629550560 3681370784 4601713480 9203426960 18406853920
• Sum of all divisors σ(n): 54745972848
• Sum of proper divisors (its aliquot sum) s(n): 36339118928
• 18406853920 is an abundant number, because the sum of its proper divisors (36339118928) is greater than itself. Its abundance is 17932265008

Bases of 18406853920

• Binary: 10001001001001000100100110100100000₂
• Hexadecimal: 0x449224D20
• Base-36: 8GEYRDS

Squares and roots of 18406853920

• 18406853920 squared (18406853920²) is 338812271232219366400
• 18406853920 cubed (18406853920³) is 6236467982874880274719756288000
• The square root of 18406853920 is 135671.8611945751
• The cube root of 18406853920 is 2640.3400005933

Scales and comparisons

• 18,406,853,920 seconds is equal to 585 years, 14 weeks, 4 days, 6 hours, 58 minutes, 40 seconds.
• To count from 1 to 18,406,853,920 would take you about one thousand, one hundred seventy 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 18406853920 cubic inches would be around 220 feet tall.

Recreational maths with 18406853920

• 18406853920 backwards is 02935860481
• The number of decimal digits it has is: 11
• The sum of 18406853920's digits is 46
• More coming soon!