18910455807321

Names of 18910455807321

• Cardinal: 18910455807321 can be written as Eighteen trillion, nine hundred ten billion, four hundred fifty-five million, eight hundred seven thousand, three hundred twenty-one.

Scientific notation

• Scientific notation: 1.8910455807321 × 10¹³

Factors of 18910455807321

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 1620

Divisors of 18910455807321

• Number of divisors d(n): 96
• Complete list of divisors:
  1 3 9 13 27 39 117 151 169 351 453 507 1359 1453 1521 1963 2197 4077 4359 4563 5889 6591 13077 17667 18889 19773 25519 39231 53001 56667 59319 76557 170001 219403 229671 245557 331747 510003 658209 689013 736671 995241 1974627 2111209 2210013 2852239 2985723 3192241 5923881 6333627 6630039 8556717 8957169 9576723 19000881 25670151 27445717 28730169 37079107 57002643 77010453 82337151 86190507 111237321 247011453 318792559 333711963 356794321 482028391 741034359 956377677 1001135889 1070382963 1446085173 2869133031 3211148889 4144303267 4338255519 4638326173 8607399093 9633446667 12432909801 13014766557 13914978519 37298729403 41744935557 53875942471 111896188209 125234806671 161627827413 484883482239 700387252123 1454650446717 2101161756369 6303485269107 18910455807321
• Sum of all divisors σ(n): 30571078675200
• Sum of proper divisors (its aliquot sum) s(n): 11660622867879
• 18910455807321 is a deficient number, because the sum of its proper divisors (11660622867879) is less than itself. Its deficiency is 7249832939442

Bases of 18910455807321

• Binary: 100010011001011101111000000000011110101011001₂
• Hexadecimal: 0x1132EF003D59
• Base-36: 6PBCD4TW9

Squares and roots of 18910455807321

• 18910455807321 squared (18910455807321²) is 357605338840640533877197041
• 18910455807321 cubed (18910455807321³) is 6762479956607984745225466620236247337161
• The square root of 18910455807321 is 4348615.3896753159
• The cube root of 18910455807321 is 26642.0311854579

Scales and comparisons

• 18,910,455,807,321 seconds is equal to 601,294 years, 6 hours, 55 minutes, 21 seconds.
• To count from 1 to 18,910,455,807,321 would take you about one million, five hundred three thousand, two hundred thirty-five 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 18910455807321 cubic inches would be around 2220.2 feet tall.

Recreational maths with 18910455807321

• 18910455807321 backwards is 12370855401981
• The number of decimal digits it has is: 14
• The sum of 18910455807321's digits is 54
• More coming soon!