18997838912

Names of 18997838912

• Cardinal: 18997838912 can be written as Eighteen billion, nine hundred ninety-seven million, eight hundred thirty-eight thousand, nine hundred twelve.

Scientific notation

• Scientific notation: 1.8997838912 × 10¹⁰

Factors of 18997838912

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 682

Divisors of 18997838912

• Number of divisors d(n): 168
• Complete list of divisors:
  1 2 4 8 13 16 17 26 32 34 52 64 68 104 136 169 208 221 272 277 338 373 416 442 544 554 676 746 832 884 1088 1108 1352 1492 1768 2216 2704 2873 2984 3536 3601 4432 4709 4849 5408 5746 5968 6341 7072 7202 8864 9418 9698 10816 11492 11936 12682 14144 14404 17728 18836 19396 22984 23872 25364 28808 37672 38792 45968 46813 50728 57616 61217 63037 75344 77584 82433 91936 93626 101456 103321 115232 122434 126074 150688 155168 164866 183872 187252 202912 206642 230464 244868 252148 301376 310336 329732 374504 405824 413284 489736 504296 659464 749008 795821 826568 979472 1008592 1071629 1318928 1343173 1498016 1591642 1653136 1756457 1958944 2017184 2143258 2637856 2686346 2996032 3183284 3306272 3512914 3917888 4034368 4286516 5275712 5372692 6366568 6612544 7025828 8573032 10745384 12733136 14051656 17146064 17461249 21490768 22833941 25466272 28103312 34292128 34922498 42981536 45667882 50932544 56206624 68584256 69844996 85963072 91335764 112413248 139689992 182671528 279379984 296841233 365343056 558759968 593682466 730686112 1117519936 1187364932 1461372224 2374729864 4749459728 9498919456 18997838912
• Sum of all divisors σ(n): 43495438536
• Sum of proper divisors (its aliquot sum) s(n): 24497599624
• 18997838912 is an abundant number, because the sum of its proper divisors (24497599624) is greater than itself. Its abundance is 5499760712

Bases of 18997838912

• Binary: 10001101100010111000000010001000000₂
• Hexadecimal: 0x46C5C0440
• Base-36: 8Q6TMBK

Squares and roots of 18997838912

• 18997838912 squared (18997838912²) is 360917883326301343744
• 18997838912 cubed (18997838912³) is 6856659807893083661217650966528
• The square root of 18997838912 is 137832.6482078901
• The cube root of 18997838912 is 2668.3004755741

Scales and comparisons

• 18,997,838,912 seconds is equal to 604 years, 3 weeks, 5 days, 9 hours, 28 minutes, 32 seconds.
• To count from 1 to 18,997,838,912 would take you about one thousand, two hundred eight 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 18997838912 cubic inches would be around 222.4 feet tall.

Recreational maths with 18997838912

• 18997838912 backwards is 21983879981
• The number of decimal digits it has is: 11
• The sum of 18997838912's digits is 65
• More coming soon!