181389121040

Names of 181389121040

• Cardinal: 181389121040 can be written as One hundred eighty-one billion, three hundred eighty-nine million, one hundred twenty-one thousand and forty.

Scientific notation

• Scientific notation: 1.8138912104 × 10¹¹

Factors of 181389121040

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 1511

Divisors of 181389121040

• Number of divisors d(n): 160
• Complete list of divisors:
  1 2 4 5 8 10 16 20 40 73 80 146 157 181 292 314 362 365 584 628 724 730 785 905 1093 1168 1256 1448 1460 1570 1810 2186 2512 2896 2920 3140 3620 4372 5465 5840 6280 7240 8744 10930 11461 12560 13213 14480 17488 21860 22922 26426 28417 43720 45844 52852 56834 57305 66065 79789 87440 91688 105704 113668 114610 132130 142085 159578 171601 183376 197833 211408 227336 229220 264260 284170 319156 343202 395666 398945 454672 458440 528520 568340 638312 686404 791332 797890 858005 916880 989165 1057040 1136680 1276624 1372808 1582664 1595780 1716010 1978330 2074441 2273360 2745616 3165328 3191560 3432020 3956660 4148882 6383120 6864040 7913320 8297764 10372205 12526873 13728080 14441809 15826640 16595528 20744410 25053746 28883618 31059781 33191056 41488820 50107492 57767236 62119562 62634365 72209045 82977640 100214984 115534472 124239124 125268730 144418090 155298905 165955280 200429968 231068944 248478248 250537460 288836180 310597810 496956496 501074920 577672360 621195620 1002149840 1155344720 1242391240 2267364013 2484782480 4534728026 9069456052 11336820065 18138912104 22673640130 36277824208 45347280260 90694560520 181389121040
• Sum of all divisors σ(n): 433002556896
• Sum of proper divisors (its aliquot sum) s(n): 251613435856
• 181389121040 is an abundant number, because the sum of its proper divisors (251613435856) is greater than itself. Its abundance is 70224314816

Bases of 181389121040

• Binary: 10101000111011101000100101011000010000₂
• Hexadecimal: 0x2A3BA25610
• Base-36: 2BBUEDJK

Squares and roots of 181389121040

• 181389121040 squared (181389121040²) is 32902013231663770681600
• 181389121040 cubed (181389121040³) is 5968067260537941260747545700864000
• The square root of 181389121040 is 425898.0171825175
• The cube root of 181389121040 is 5660.7035572371

Scales and comparisons

• 181,389,121,040 seconds is equal to 5,767 years, 31 weeks, 6 days, 2 hours, 57 minutes, 20 seconds.
• To count from 1 to 181,389,121,040 would take you about eleven thousand, five hundred thirty-five 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 181389121040 cubic inches would be around 471.7 feet tall.

Recreational maths with 181389121040

• 181389121040 backwards is 040121983181
• The number of decimal digits it has is: 12
• The sum of 181389121040's digits is 38
• More coming soon!