64557671990

Names of 64557671990

• Cardinal: 64557671990 can be written as Sixty-four billion, five hundred fifty-seven million, six hundred seventy-one thousand, nine hundred ninety.

Scientific notation

• Scientific notation: 6.455767199 × 10¹⁰

Factors of 64557671990

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 8343

Divisors of 64557671990

• Number of divisors d(n): 96
• Complete list of divisors:
  1 2 5 7 10 14 19 35 38 49 70 95 98 133 190 245 266 490 665 931 941 1330 1862 1882 4655 4705 6587 7369 9310 9410 13174 14738 17879 32935 35758 36845 46109 51583 65870 73690 89395 92218 103166 125153 140011 178790 230545 250306 257915 280022 361081 461090 515830 625765 700055 722162 876071 980077 1251530 1400110 1752142 1805405 1960154 3610810 4380355 4900385 6860539 6934229 8760710 9800770 13721078 13868458 34302695 34671145 48539603 68605390 69342290 97079206 131750351 242698015 263500702 339777221 485396030 658751755 679554442 922252457 1317503510 1698886105 1844504914 3397772210 4611262285 6455767199 9222524570 12911534398 32278835995 64557671990
• Sum of all divisors σ(n): 142460920800
• Sum of proper divisors (its aliquot sum) s(n): 77903248810
• 64557671990 is an abundant number, because the sum of its proper divisors (77903248810) is greater than itself. Its abundance is 13345576820

Bases of 64557671990

• Binary: 111100000111111011111110011000110110₂
• Hexadecimal: 0xF07EFE636
• Base-36: TNNYYIE

Squares and roots of 64557671990

• 64557671990 squared (64557671990²) is 4167693012768430560100
• 64557671990 cubed (64557671990³) is 269056558473319221926027781599000
• The square root of 64557671990 is 254082.0182342701
• The cube root of 64557671990 is 4011.5845834257

Scales and comparisons

• 64,557,671,990 seconds is equal to 2,052 years, 38 weeks, 1 day, 6 hours, 39 minutes, 50 seconds.
• To count from 1 to 64,557,671,990 would take you about four thousand, one hundred 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 64557671990 cubic inches would be around 334.3 feet tall.

Recreational maths with 64557671990

• 64557671990 backwards is 09917675546
• The number of decimal digits it has is: 11
• The sum of 64557671990's digits is 59
• More coming soon!