18012310920

Names of 18012310920

• Cardinal: 18012310920 can be written as Eighteen billion, twelve million, three hundred ten thousand, nine hundred twenty.

Scientific notation

• Scientific notation: 1.801231092 × 10¹⁰

Factors of 18012310920

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 2213

Divisors of 18012310920

• Number of divisors d(n): 192
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 12 15 18 20 24 30 36 40 45 60 71 72 90 120 142 180 213 284 355 360 409 426 568 639 710 818 852 1065 1227 1278 1420 1636 1704 1723 2045 2130 2454 2556 2840 3195 3272 3446 3681 4090 4260 4908 5112 5169 6135 6390 6892 7362 8180 8520 8615 9816 10338 12270 12780 13784 14724 15507 16360 17230 18405 20676 24540 25560 25845 29039 29448 31014 34460 36810 41352 49080 51690 58078 62028 68920 73620 77535 87117 103380 116156 122333 124056 145195 147240 155070 174234 206760 232312 244666 261351 290390 310140 348468 366999 435585 489332 522702 580780 611665 620280 696936 704707 733998 871170 978664 1045404 1100997 1161560 1223330 1306755 1409414 1467996 1742340 1834995 2090808 2114121 2201994 2446660 2613510 2818828 2935992 3484680 3523535 3669990 4228242 4403988 4893320 5227020 5504985 5637656 6342363 7047070 7339980 8456484 8807976 10454040 10570605 11009970 12684726 14094140 14679960 16912968 21141210 22019940 25369452 28188280 31711815 42282420 44039880 50034197 50738904 63423630 84564840 100068394 126847260 150102591 200136788 250170985 253694520 300205182 400273576 450307773 500341970 600410364 750512955 900615546 1000683940 1200820728 1501025910 1801231092 2001367880 2251538865 3002051820 3602462184 4503077730 6004103640 9006155460 18012310920
• Sum of all divisors σ(n): 59544201600
• Sum of proper divisors (its aliquot sum) s(n): 41531890680
• 18012310920 is an abundant number, because the sum of its proper divisors (41531890680) is greater than itself. Its abundance is 23519579760

Bases of 18012310920

• Binary: 10000110001100111100000110110001000₂
• Hexadecimal: 0x4319E0D88
• Base-36: 89W2C20

Squares and roots of 18012310920

• 18012310920 squared (18012310920²) is 324443344678751246400
• 18012310920 cubed (18012310920³) is 5843974400278394967494330688000
• The square root of 18012310920 is 134209.9508978377
• The cube root of 18012310920 is 2621.3387346709

Scales and comparisons

• 18,012,310,920 seconds is equal to 572 years, 38 weeks, 1 day, 19 hours, 42 minutes.
• To count from 1 to 18,012,310,920 would take you about one thousand, one hundred forty-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 18012310920 cubic inches would be around 218.4 feet tall.

Recreational maths with 18012310920

• 18012310920 backwards is 02901321081
• The number of decimal digits it has is: 11
• The sum of 18012310920's digits is 27
• More coming soon!