1645643513964

Names of 1645643513964

• Cardinal: 1645643513964 can be written as One trillion, six hundred forty-five billion, six hundred forty-three million, five hundred thirteen thousand, nine hundred sixty-four.

Scientific notation

• Scientific notation: 1.645643513964 × 10¹²

Factors of 1645643513964

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 2566

Divisors of 1645643513964

• Number of divisors d(n): 192
• Complete list of divisors:
  1 2 3 4 6 12 31 61 62 67 93 122 124 134 183 186 201 244 268 366 372 402 601 732 804 1202 1801 1803 1891 2077 2404 3602 3606 3782 4087 4154 5403 5673 6231 7204 7212 7564 8174 8308 10806 11346 12261 12462 16348 18631 21612 22692 24522 24924 36661 37262 40267 49044 55831 55893 73322 74524 80534 109861 109983 111662 111786 120667 120801 126697 146644 161068 167493 219722 219966 223324 223572 241334 241602 253394 329583 334986 362001 380091 439444 439932 482668 483204 506788 659166 669972 724002 760182 1082401 1136491 1248277 1318332 1448004 1520364 2164802 2272982 2456287 2496554 3247203 3405691 3409473 3740677 3744831 4329604 4545964 4912574 4993108 6494406 6811382 6818946 7360687 7368861 7481354 7489662 9825148 10217073 11222031 12988812 13622764 13637892 14721374 14737722 14962708 14979324 20434146 22082061 22444062 29442748 29475444 33554431 40868292 44164122 44888124 66026461 67108862 72520867 76144897 88328244 100663293 132052922 134217724 145041734 152289794 198079383 201326586 217562601 228181297 228434691 264105844 290083468 304579588 396158766 402653172 435125202 456362594 456869382 684543891 792317532 870250404 912725188 913738764 1369087782 2046820291 2248146877 2738175564 4093640582 4423772887 4496293754 6140460873 6744440631 8187281164 8847545774 8992587508 12280921746 13271318661 13488881262 17695091548 24561843492 26542637322 26977762524 53085274644 137136959497 274273918994 411410878491 548547837988 822821756982 1645643513964
• Sum of all divisors σ(n): 4097886162944
• Sum of proper divisors (its aliquot sum) s(n): 2452242648980
• 1645643513964 is an abundant number, because the sum of its proper divisors (2452242648980) is greater than itself. Its abundance is 806599135016

Bases of 1645643513964

• Binary: 10111111100100111111111110100000001101100₂
• Hexadecimal: 0x17F27FF406C
• Base-36: KZZXNQ0C

Squares and roots of 1645643513964

• 1645643513964 squared (1645643513964²) is 2708142575051781862993296
• 1645643513964 cubed (1645643513964³) is 4456637263523729904275890040814385344
• The square root of 1645643513964 is 1282826.3771703481
• The cube root of 1645643513964 is 11806.2485194931

Scales and comparisons

• 1,645,643,513,964 seconds is equal to 52,326 years, 19 weeks, 2 days, 22 hours, 19 minutes, 24 seconds.
• To count from 1 to 1,645,643,513,964 would take you about one hundred thirty thousand, eight hundred fifteen 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 1645643513964 cubic inches would be around 983.9 feet tall.

Recreational maths with 1645643513964

• 1645643513964 backwards is 4693153465461
• The number of decimal digits it has is: 13
• The sum of 1645643513964's digits is 57
• More coming soon!