155198744820

Names of 155198744820

• Cardinal: 155198744820 can be written as One hundred fifty-five billion, one hundred ninety-eight million, seven hundred forty-four thousand, eight hundred twenty.

Scientific notation

• Scientific notation: 1.5519874482 × 10¹¹

Factors of 155198744820

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 423391

Divisors of 155198744820

• Number of divisors d(n): 192
• Complete list of divisors:
  1 2 3 4 5 6 7 9 10 12 14 15 18 20 21 27 28 30 35 36 42 45 54 60 63 70 84 90 97 105 108 126 135 140 180 189 194 210 252 270 291 315 378 388 420 485 540 582 630 679 756 873 945 970 1164 1260 1358 1455 1746 1890 1940 2037 2619 2716 2910 3395 3492 3780 4074 4365 5238 5820 6111 6790 8148 8730 10185 10476 12222 13095 13580 17460 18333 20370 24444 26190 30555 36666 40740 52380 61110 73332 91665 122220 183330 366660 423277 846554 1269831 1693108 2116385 2539662 2962939 3809493 4232770 5079324 5925878 6349155 7618986 8465540 8888817 11428479 11851756 12698310 14814695 15237972 17777634 19047465 22856958 25396620 26666451 29629390 35555268 38094930 41057869 44444085 45713916 53332902 57142395 59258780 76189860 79999353 82115738 88888170 106665804 114284790 123173607 133332255 159998706 164231476 177776340 205289345 228569580 246347214 266664510 287405083 319997412 369520821 399996765 410578690 492694428 533329020 574810166 615868035 739041642 799993530 821157380 862215249 1108562463 1149620332 1231736070 1437025415 1478083284 1599987060 1724430498 1847604105 2217124926 2463472140 2586645747 2874050830 3448860996 3695208210 4311076245 4434249852 5173291494 5542812315 5748101660 7390416420 7759937241 8622152490 10346582988 11085624630 12933228735 15519874482 17244304980 22171249260 25866457470 31039748964 38799686205 51732914940 77599372410 155198744820
• Sum of all divisors σ(n): 557507919360
• Sum of proper divisors (its aliquot sum) s(n): 402309174540
• 155198744820 is an abundant number, because the sum of its proper divisors (402309174540) is greater than itself. Its abundance is 247110429720

Bases of 155198744820

• Binary: 10010000100010100100001110100011110100₂
• Hexadecimal: 0x242290E8F4
• Base-36: 1ZAPBPX0

Squares and roots of 155198744820

• 155198744820 squared (155198744820²) is 24086650393703476832400
• 155198744820 cubed (155198744820³) is 3738217908020938435658429508168000
• The square root of 155198744820 is 393952.7190158737
• The cube root of 155198744820 is 5373.9802768051

Scales and comparisons

• 155,198,744,820 seconds is equal to 4,934 years, 43 weeks, 4 days, 18 hours, 27 minutes.
• To count from 1 to 155,198,744,820 would take you about nine thousand, eight hundred sixty-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 155198744820 cubic inches would be around 447.8 feet tall.

Recreational maths with 155198744820

• 155198744820 backwards is 028447891551
• 155198744820 is a Harshad number.
• The number of decimal digits it has is: 12
• The sum of 155198744820's digits is 54
• More coming soon!