640195713828

Names of 640195713828

• Cardinal: 640195713828 can be written as Six hundred forty billion, one hundred ninety-five million, seven hundred thirteen thousand, eight hundred twenty-eight.

Scientific notation

• Scientific notation: 6.40195713828 × 10¹¹

Factors of 640195713828

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 8338

Divisors of 640195713828

• Number of divisors d(n): 180
• Complete list of divisors:
  1 2 3 4 6 9 11 12 18 22 27 33 36 44 54 66 81 99 108 121 132 162 198 242 297 324 363 396 484 594 726 891 1089 1188 1452 1782 2178 3169 3267 3564 4356 5153 6338 6534 9507 9801 10306 12676 13068 15459 19014 19602 20612 28521 30918 34859 38028 39204 46377 56683 57042 61836 69718 85563 92754 104577 113366 114084 139131 139436 170049 171126 185508 209154 226732 256689 278262 313731 340098 342252 383449 417393 418308 510147 513378 556524 623513 627462 680196 766898 834786 941193 1020294 1026756 1150347 1247026 1254924 1530441 1533796 1669572 1870539 1882386 2040588 2300694 2494052 2823579 3060882 3451041 3741078 3764772 4591323 4601388 5611617 5647158 6121764 6902082 7482156 9182646 10353123 11223234 11294316 13804164 16329857 16834851 18365292 20706246 22446468 31059369 32659714 33669702 41412492 48989571 50504553 62118738 65319428 67339404 97979142 101009106 124237476 146968713 179628427 195958284 202018212 293937426 359256854 440906139 538885281 587874852 718513708 881812278 1077770562 1322718417 1616655843 1763624556 1975912697 2155541124 2645436834 3233311686 3951825394 4849967529 5290873668 5927738091 6466623372 7903650788 9699935058 11855476182 14549902587 17783214273 19399870116 23710952364 29099805174 35566428546 53349642819 58199610348 71132857092 106699285638 160048928457 213398571276 320097856914 640195713828
• Sum of all divisors σ(n): 1840512315180
• Sum of proper divisors (its aliquot sum) s(n): 1200316601352
• 640195713828 is an abundant number, because the sum of its proper divisors (1200316601352) is greater than itself. Its abundance is 560120887524

Bases of 640195713828

• Binary: 1001010100001110101000110101101100100100₂
• Hexadecimal: 0x950EA35B24
• Base-36: 863NZY90

Squares and roots of 640195713828

• 640195713828 squared (640195713828²) is 409850552003742470413584
• 640195713828 cubed (640195713828³) is 262384566702835746573904579267839552
• The square root of 640195713828 is 800122.3117923909
• The cube root of 640195713828 is 8618.6171136417

Scales and comparisons

• 640,195,713,828 seconds is equal to 20,356 years, 12 weeks, 4 days, 14 hours, 43 minutes, 48 seconds.
• To count from 1 to 640,195,713,828 would take you about forty thousand, seven hundred twelve 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 640195713828 cubic inches would be around 718.2 feet tall.

Recreational maths with 640195713828

• 640195713828 backwards is 828317591046
• 640195713828 is a Harshad number.
• The number of decimal digits it has is: 12
• The sum of 640195713828's digits is 54
• More coming soon!