664194816

Names of 664194816

• Cardinal: 664194816 can be written as Six hundred sixty-four million, one hundred ninety-four thousand, eight hundred sixteen.

Scientific notation

• Scientific notation: 6.64194816 × 10⁸

Factors of 664194816

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 15
• Sum of prime factors: 3564

Divisors of 664194816

• Number of divisors d(n): 126
• Complete list of divisors:
  1 2 3 4 6 8 9 12 16 18 24 27 32 36 48 54 64 72 81 96 108 128 144 162 192 216 243 256 288 324 384 432 486 576 648 729 768 864 972 1152 1296 1458 1728 1944 2304 2592 2916 3456 3559 3888 5184 5832 6912 7118 7776 10368 10677 11664 14236 15552 20736 21354 23328 28472 31104 32031 42708 46656 56944 62208 64062 85416 93312 96093 113888 128124 170832 186624 192186 227776 256248 288279 341664 384372 455552 512496 576558 683328 768744 864837 911104 1024992 1153116 1366656 1537488 1729674 2049984 2306232 2594511 2733312 3074976 3459348 4099968 4612464 5189022 6149952 6918696 8199936 9224928 10378044 12299904 13837392 18449856 20756088 24599808 27674784 36899712 41512176 55349568 73799424 83024352 110699136 166048704 221398272 332097408 664194816
• Sum of all divisors σ(n): 1988341880
• Sum of proper divisors (its aliquot sum) s(n): 1324147064
• 664194816 is an abundant number, because the sum of its proper divisors (1324147064) is greater than itself. Its abundance is 659952248

Bases of 664194816

• Binary: 100111100101101100111100000000₂
• Hexadecimal: 0x2796CF00
• Base-36: AZG000

Squares and roots of 664194816

• 664194816 squared (664194816²) is 441154753601273856
• 664194816 cubed (664194816³) is 293012700395723426151530496
• The square root of 664194816 is 25771.9773397387
• The cube root of 664194816 is 872.4994473495

Scales and comparisons

• 664,194,816 seconds is equal to 21 years, 6 weeks, 1 day, 10 hours, 33 minutes, 36 seconds.
• To count from 1 to 664,194,816 would take you about thirty-one 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 664194816 cubic inches would be around 72.7 feet tall.

Recreational maths with 664194816

• 664194816 backwards is 618491466
• The number of decimal digits it has is: 9
• The sum of 664194816's digits is 45
• More coming soon!