64613939742

Names of 64613939742

• Cardinal: 64613939742 can be written as Sixty-four billion, six hundred thirteen million, nine hundred thirty-nine thousand, seven hundred forty-two.

Scientific notation

• Scientific notation: 6.4613939742 × 10¹⁰

Factors of 64613939742

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 272296

Divisors of 64613939742

• Number of divisors d(n): 72
• Complete list of divisors:
  1 2 3 6 9 11 18 22 33 66 99 109 121 198 218 242 327 363 654 726 981 1089 1199 1962 2178 2398 3597 7194 10791 13189 21582 26378 39567 79134 118701 237402 272171 544342 816513 1633026 2449539 2993881 4899078 5987762 8981643 17963286 26944929 29666639 32932691 53889858 59333278 65865382 88999917 98798073 177999834 197596146 266999751 296394219 326333029 533999502 592788438 652666058 978999087 1957998174 2936997261 3589663319 5873994522 7179326638 10768989957 21537979914 32306969871 64613939742
• Sum of all divisors σ(n): 155293178040
• Sum of proper divisors (its aliquot sum) s(n): 90679238298
• 64613939742 is an abundant number, because the sum of its proper divisors (90679238298) is greater than itself. Its abundance is 26065298556

Bases of 64613939742

• Binary: 111100001011010010100111101000011110₂
• Hexadecimal: 0xF0B4A7A1E
• Base-36: TOLGYZI

Squares and roots of 64613939742

• 64613939742 squared (64613939742²) is 4174961208982807026564
• 64613939742 cubed (64613939742³) is 269760691982402562328420489306488
• The square root of 64613939742 is 254192.7216542599
• The cube root of 64613939742 is 4012.7497292149

Scales and comparisons

• 64,613,939,742 seconds is equal to 2,054 years, 27 weeks, 1 day, 12 hours, 35 minutes, 42 seconds.
• To count from 1 to 64,613,939,742 would take you about four thousand, one hundred nine 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 64613939742 cubic inches would be around 334.4 feet tall.

Recreational maths with 64613939742

• 64613939742 backwards is 24793931646
• The number of decimal digits it has is: 11
• The sum of 64613939742's digits is 54
• More coming soon!