18389621387402

Names of 18389621387402

• Cardinal: 18389621387402 can be written as Eighteen trillion, three hundred eighty-nine billion, six hundred twenty-one million, three hundred eighty-seven thousand, four hundred two.

Scientific notation

• Scientific notation: 1.8389621387402 × 10¹³

Factors of 18389621387402

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 4456

Divisors of 18389621387402

• Number of divisors d(n): 128
• Complete list of divisors:
  1 2 23 31 46 62 67 134 151 302 331 662 713 1426 1541 2077 3082 3473 3851 4154 4681 6946 7613 7702 9362 10117 10261 15226 20234 20522 22177 44354 47771 49981 88573 95542 99962 107663 119381 177146 215326 232691 236003 238762 258017 313627 465382 472006 510071 516034 581501 627254 687487 1020142 1149563 1163002 1274681 1374974 1549411 2299126 2549362 2745763 3098822 3348727 5491526 5934391 6697454 7213421 7998527 11868782 13374523 14426842 15812201 15997054 18026531 26749046 29317663 31624402 35636453 36053062 38960567 39515111 58635326 71272906 77020721 77921134 79030222 85403627 103810537 154041442 170807254 183966121 192476831 207621074 367932242 384953662 414610213 829220426 896093041 908847553 1207777577 1792186082 1817695106 1964283421 2387642351 2415555154 2647512437 3928566842 4426967113 4775284702 5295024874 5966781761 8853934226 11933563522 12895947677 25791895354 27778884271 55557768542 60892786051 121785572102 137235980503 274471961006 296606796571 399774377987 593213593142 799548755974 9194810693701 18389621387402
• Sum of all divisors σ(n): 30455051452416
• Sum of proper divisors (its aliquot sum) s(n): 12065430065014
• 18389621387402 is a deficient number, because the sum of its proper divisors (12065430065014) is less than itself. Its deficiency is 6324191322388

Bases of 18389621387402

• Binary: 100001011100110101010110110011011000010001010₂
• Hexadecimal: 0x10B9AAD9B08A
• Base-36: 6IO2PRNGQ

Squares and roots of 18389621387402

• 18389621387402 squared (18389621387402²) is 338178174771993059364309604
• 18389621387402 cubed (18389621387402³) is 6218968595539615039359809728072353208808
• The square root of 18389621387402 is 4288312.1839952371
• The cube root of 18389621387402 is 26395.1577950515

Scales and comparisons

• 18,389,621,387,402 seconds is equal to 584,733 years, 4 weeks, 3 hours, 10 minutes, 2 seconds.
• To count from 1 to 18,389,621,387,402 would take you about one million, four hundred sixty-one thousand, eight hundred thirty-two 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 18389621387402 cubic inches would be around 2199.6 feet tall.

Recreational maths with 18389621387402

• 18389621387402 backwards is 20478312698381
• 18389621387402 is a Harshad number.
• The number of decimal digits it has is: 14
• The sum of 18389621387402's digits is 62
• More coming soon!