649431937664

Names of 649431937664

• Cardinal: 649431937664 can be written as Six hundred forty-nine billion, four hundred thirty-one million, nine hundred thirty-seven thousand, six hundred sixty-four.

Scientific notation

• Scientific notation: 6.49431937664 × 10¹¹

Factors of 649431937664

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 580

Divisors of 649431937664

• Number of divisors d(n): 64
• Complete list of divisors:
  1 2 4 8 16 31 32 62 64 124 128 248 496 547 992 1094 1984 2188 3968 4376 8752 16957 17504 33914 35008 67828 70016 135656 271312 299209 542624 598418 1085248 1196836 2170496 2393672 4787344 9275479 9574688 18550958 19149376 37101916 38298752 74203832 148407664 163667323 296815328 327334646 593630656 654669292 1187261312 1309338584 2618677168 5073687013 5237354336 10147374026 10474708672 20294748052 20949417344 40589496104 81178992208 162357984416 324715968832 649431937664
• Sum of all divisors σ(n): 1337971372800
• Sum of proper divisors (its aliquot sum) s(n): 688539435136
• 649431937664 is an abundant number, because the sum of its proper divisors (688539435136) is greater than itself. Its abundance is 39107497472

Bases of 649431937664

• Binary: 1001011100110101001010001111001010000000₂
• Hexadecimal: 0x973528F280
• Base-36: 8ACF0A68

Squares and roots of 649431937664

• 649431937664 squared (649431937664²) is 421761841658017581776896
• 649431937664 cubed (649431937664³) is 273905610060703512574349145427410944
• The square root of 649431937664 is 805873.4005189649
• The cube root of 649431937664 is 8659.8668419807

Scales and comparisons

• 649,431,937,664 seconds is equal to 20,649 years, 48 weeks, 1 day, 8 hours, 27 minutes, 44 seconds.
• To count from 1 to 649,431,937,664 would take you about forty-one thousand, two hundred ninety-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 649431937664 cubic inches would be around 721.7 feet tall.

Recreational maths with 649431937664

• 649431937664 backwards is 466739134946
• 649431937664 is a Harshad number.
• The number of decimal digits it has is: 12
• The sum of 649431937664's digits is 62
• More coming soon!