1388400400890

Names of 1388400400890

• Cardinal: 1388400400890 can be written as One trillion, three hundred eighty-eight billion, four hundred million, four hundred thousand, eight hundred ninety.

Scientific notation

• Scientific notation: 1.38840040089 × 10¹²

Factors of 1388400400890

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 4475

Divisors of 1388400400890

• Number of divisors d(n): 240
• Complete list of divisors:
  1 2 3 5 6 9 10 15 18 19 27 30 38 45 54 57 81 90 95 114 135 162 171 190 270 285 342 361 405 513 570 722 810 855 1026 1083 1539 1710 1783 1805 2166 2565 2663 3078 3249 3566 3610 5130 5326 5349 5415 6498 7695 7989 8915 9747 10698 10830 13315 15390 15978 16047 16245 17830 19494 23967 26630 26745 29241 32094 32490 33877 39945 47934 48141 48735 50597 53490 58482 67754 71901 79890 80235 96282 97470 101194 101631 119835 143802 144423 146205 151791 160470 169385 203262 215703 239670 240705 252985 288846 292410 303582 304893 338770 359505 431406 455373 481410 505970 508155 609786 643663 719010 722115 758955 910746 914679 961343 1016310 1078515 1287326 1366119 1444230 1517910 1524465 1829358 1922686 1930989 2157030 2276865 2732238 2744037 2884029 3048930 3218315 3861978 4098357 4553730 4573395 4748129 4806715 5488074 5768058 5792967 6436630 6830595 8196714 8652087 9146790 9496258 9613430 9654945 11585934 13661190 13720185 14244387 14420145 17304174 17378901 19309890 20491785 23740645 25956261 27440370 28488774 28840290 28964835 34757802 40983570 42733161 43260435 47481290 51912522 52136703 57929670 71221935 77868783 85466322 86520870 86894505 90214451 104273406 128199483 129781305 142443870 155737566 173789010 180428902 213665805 256398966 259562610 260683515 270643353 384598449 389343915 427331610 451072255 521367030 541286706 640997415 769196898 778687830 811930059 902144510 1281994830 1353216765 1623860118 1714074569 1922992245 2435790177 2706433530 3428149138 3845984490 4059650295 4871580354 5142223707 7307370531 8119300590 8570372845 10284447414 12178950885 14614741062 15426671121 17140745690 24357901770 25711118535 30853342242 36536852655 46280013363 51422237070 73073705310 77133355605 92560026726 138840040089 154266711210 231400066815 277680080178 462800133630 694200200445 1388400400890
• Sum of all divisors σ(n): 3943773111168
• Sum of proper divisors (its aliquot sum) s(n): 2555372710278
• 1388400400890 is an abundant number, because the sum of its proper divisors (2555372710278) is greater than itself. Its abundance is 1166972309388

Bases of 1388400400890

• Binary: 10100001101000011000111001101100111111010₂
• Hexadecimal: 0x143431CD9FA
• Base-36: HPTLR1MI

Squares and roots of 1388400400890

• 1388400400890 squared (1388400400890²) is 1927655673191512712792100
• 1388400400890 cubed (1388400400890³) is 2676357909436979076186083071224969000
• The square root of 1388400400890 is 1178304.0358455877
• The cube root of 1388400400890 is 11155.9076414733

Scales and comparisons

• 1,388,400,400,890 seconds is equal to 44,146 years, 43 weeks, 4 days, 2 hours, 1 minute, 30 seconds.
• To count from 1 to 1,388,400,400,890 would take you about one hundred ten thousand, three hundred sixty-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 1388400400890 cubic inches would be around 929.7 feet tall.

Recreational maths with 1388400400890

• 1388400400890 backwards is 0980040048831
• 1388400400890 is a Harshad number.
• The number of decimal digits it has is: 13
• The sum of 1388400400890's digits is 45
• More coming soon!