18038963640

Names of 18038963640

• Cardinal: 18038963640 can be written as Eighteen billion, thirty-eight million, nine hundred sixty-three thousand, six hundred forty.

Scientific notation

• Scientific notation: 1.803896364 × 10¹⁰

Factors of 18038963640

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 2277

Divisors of 18038963640

• Number of divisors d(n): 128
• Complete list of divisors:
  1 2 3 4 5 6 8 10 12 15 20 24 30 40 60 120 257 353 514 706 771 1028 1059 1285 1412 1542 1657 1765 2056 2118 2570 2824 3084 3314 3530 3855 4236 4971 5140 5295 6168 6628 7060 7710 8285 8472 9942 10280 10590 13256 14120 15420 16570 19884 21180 24855 30840 33140 39768 42360 49710 66280 90721 99420 181442 198840 272163 362884 425849 453605 544326 584921 725768 851698 907210 1088652 1169842 1277547 1360815 1703396 1754763 1814420 2129245 2177304 2339684 2555094 2721630 2924605 3406792 3509526 3628840 4258490 4679368 5110188 5443260 5849210 6387735 7019052 8516980 8773815 10220376 10886520 11698420 12775470 14038104 17033960 17547630 23396840 25550940 35095260 51101880 70190520 150324697 300649394 450974091 601298788 751623485 901948182 1202597576 1503246970 1803896364 2254870455 3006493940 3607792728 4509740910 6012987880 9019481820 18038963640
• Sum of all divisors σ(n): 54514244160
• Sum of proper divisors (its aliquot sum) s(n): 36475280520
• 18038963640 is an abundant number, because the sum of its proper divisors (36475280520) is greater than itself. Its abundance is 18436316880

Bases of 18038963640

• Binary: 10000110011001101001011110110111000₂
• Hexadecimal: 0x43334BDB8
• Base-36: 8ABXLFC

Squares and roots of 18038963640

• 18038963640 squared (18038963640²) is 325404209205242049600
• 18038963640 cubed (18038963640³) is 5869954698156314630133476544000
• The square root of 18038963640 is 134309.2090662439
• The cube root of 18038963640 is 2622.6310244447

Scales and comparisons

• 18,038,963,640 seconds is equal to 573 years, 30 weeks, 2 days, 7 hours, 14 minutes.
• To count from 1 to 18,038,963,640 would take you about one thousand, one hundred forty-seven 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 18038963640 cubic inches would be around 218.6 feet tall.

Recreational maths with 18038963640

• 18038963640 backwards is 04636983081
• The number of decimal digits it has is: 11
• The sum of 18038963640's digits is 48
• More coming soon!