389945748260369840

Names of 389945748260369840

• Cardinal: 389945748260369840 can be written as Three hundred eighty-nine quadrillion, nine hundred forty-five trillion, seven hundred forty-eight billion, two hundred sixty million, three hundred sixty-nine thousand, eight hundred forty.

Scientific notation

• Scientific notation: 3.8994574826036984 × 10¹⁷

Factors of 389945748260369840

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 15626486725

Divisors of 389945748260369840

• Number of divisors d(n): 160
• Complete list of divisors:
  1 2 4 5 7 8 10 11 14 16 20 22 28 35 40 44 55 56 70 77 80 88 110 112 140 154 176 220 280 308 385 440 560 616 770 880 1232 1540 3080 4051 6160 8102 16204 20255 28357 32408 40510 44561 56714 64816 81020 89122 113428 141785 162040 178244 222805 226856 283570 311927 324080 356488 445610 453712 567140 623854 712976 891220 1134280 1247708 1559635 1782440 2268560 2495416 3119270 3564880 4990832 6238540 12477080 24954160 15626482649 31252965298 62505930596 78132413245 109385378543 125011861192 156264826490 171891309139 218770757086 250023722384 312529652980 343782618278 437541514172 546926892715 625059305960 687565236556 859456545695 875083028344 1093853785430 1203239163973 1250118611920 1375130473112 1718913091390 1750166056688 2187707570860 2406478327946 2750260946224 3437826182780 4375415141720 4812956655892 6016195819865 6875652365560 8750830283440 9625913311784 12032391639730 13751304731120 19251826623568 24064783279460 48129566558920 63302881211099 96259133117840 126605762422198 253211524844396 316514406055495 443120168477693 506423049688792 633028812110990 696331693322089 886240336955386 1012846099377584 1266057624221980 1392663386644178 1772480673910772 2215600842388465 2532115248443960 2785326773288356 3481658466610445 3544961347821544 4431201684776930 4874321853254623 5064230496887920 5570653546576712 6963316933220890 7089922695643088 8862403369553860 9748643706509246 11141307093153424 13926633866441780 17724806739107720 19497287413018492 24371609266273115 27853267732883560 35449613478215440 38994574826036984 48743218532546230 55706535465767120 77989149652073968 97486437065092460 194972874130184920 389945748260369840
• Sum of all divisors σ(n): 1130615273451916800
• Sum of proper divisors (its aliquot sum) s(n): 740669525191546960
• 389945748260369840 is an abundant number, because the sum of its proper divisors (740669525191546960) is greater than itself. Its abundance is 350723776931177120

Bases of 389945748260369840

• Binary: 10101101001010111011001011110001110101110111011010110110000₂
• Hexadecimal: 0x5695D978EBBB5B0
• Base-36: 2YNK8BPPD1GW

Squares and roots of 389945748260369840

• 389945748260369840 squared (389945748260369840²) is 152057686586339728098673093581625600
• 389945748260369840 cubed (389945748260369840³) is 59294248374651047382809118474856011236101684411904000
• The square root of 389945748260369840 is 624456362.1746277317
• The cube root of 389945748260369840 is 730580.4779721237

Scales and comparisons

• 389,945,748,260,369,840 seconds is equal to 12,399,068,613 years, 14 weeks, 5 days, 18 hours, 17 minutes, 20 seconds.
• To count from 1 to 389,945,748,260,369,840 would take you about thirty-seven billion, one hundred ninety-seven million, two hundred five thousand, eight hundred thirty-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 389945748260369840 cubic inches would be around 60881.7 feet tall.

Recreational maths with 389945748260369840

• 389945748260369840 backwards is 048963062847549983
• The number of decimal digits it has is: 18
• The sum of 389945748260369840's digits is 95
• More coming soon!