145197162640

Names of 145197162640

• Cardinal: 145197162640 can be written as One hundred forty-five billion, one hundred ninety-seven million, one hundred sixty-two thousand, six hundred forty.

Scientific notation

• Scientific notation: 1.4519716264 × 10¹¹

Factors of 145197162640

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 44234

Divisors of 145197162640

• Number of divisors d(n): 80
• Complete list of divisors:
  1 2 4 5 8 10 16 20 31 40 62 80 124 155 248 310 496 620 1240 1367 2480 2734 5468 6835 10936 13670 21872 27340 42377 42829 54680 84754 85658 109360 169508 171316 211885 214145 339016 342632 423770 428290 678032 685264 847540 856580 1327699 1695080 1713160 2655398 3390160 3426320 5310796 6638495 10621592 13276990 21243184 26553980 53107960 58547243 106215920 117094486 234188972 292736215 468377944 585472430 936755888 1170944860 1814964533 2341889720 3629929066 4683779440 7259858132 9074822665 14519716264 18149645330 29039432528 36299290660 72598581320 145197162640
• Sum of all divisors σ(n): 348736250880
• Sum of proper divisors (its aliquot sum) s(n): 203539088240
• 145197162640 is an abundant number, because the sum of its proper divisors (203539088240) is greater than itself. Its abundance is 58341925600

Bases of 145197162640

• Binary: 10000111001110011011001110000010010000₂
• Hexadecimal: 0x21CE6CE090
• Base-36: 1UPAN3PS

Squares and roots of 145197162640

• 145197162640 squared (145197162640²) is 21082216038706611769600
• 145197162640 cubed (145197162640³) is 3061077950983700444353949407744000
• The square root of 145197162640 is 381047.4545775105
• The cube root of 145197162640 is 5255.9679693433

Scales and comparisons

• 145,197,162,640 seconds is equal to 4,616 years, 42 weeks, 4 days, 17 hours, 10 minutes, 40 seconds.
• To count from 1 to 145,197,162,640 would take you about nine thousand, two hundred thirty-three 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 145197162640 cubic inches would be around 438 feet tall.

Recreational maths with 145197162640

• 145197162640 backwards is 046261791541
• The number of decimal digits it has is: 12
• The sum of 145197162640's digits is 46
• More coming soon!