399213793888

Names of 399213793888

• Cardinal: 399213793888 can be written as Three hundred ninety-nine billion, two hundred thirteen million, seven hundred ninety-three thousand, eight hundred eighty-eight.

Scientific notation

• Scientific notation: 3.99213793888 × 10¹¹

Factors of 399213793888

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 468208

Divisors of 399213793888

• Number of divisors d(n): 96
• Complete list of divisors:
  1 2 4 7 8 13 14 16 26 28 32 52 56 91 104 112 182 208 224 293 364 416 586 728 1172 1456 2051 2344 2912 3809 4102 4688 7618 8204 9376 15236 16408 26663 30472 32816 53326 60944 65632 106652 121888 213304 426608 467893 853216 935786 1871572 3275251 3743144 6082609 6550502 7486288 12165218 13101004 14972576 24330436 26202008 42578263 48660872 52404016 85156526 97321744 104808032 137092649 170313052 194643488 274185298 340626104 548370596 681252208 959648543 1096741192 1362504416 1782204437 1919297086 2193482384 3564408874 3838594172 4386964768 7128817748 7677188344 12475431059 14257635496 15354376688 24950862118 28515270992 30708753376 49901724236 57030541984 99803448472 199606896944 399213793888
• Sum of all divisors σ(n): 970629258816
• Sum of proper divisors (its aliquot sum) s(n): 571415464928
• 399213793888 is an abundant number, because the sum of its proper divisors (571415464928) is greater than itself. Its abundance is 172201671040

Bases of 399213793888

• Binary: 101110011110010111111110001001001100000₂
• Hexadecimal: 0x5CF2FF1260
• Base-36: 53E9L2SG

Squares and roots of 399213793888

• 399213793888 squared (399213793888²) is 159371653230450546156544
• 399213793888 cubed (399213793888³) is 63623362324330893698715586998403072
• The square root of 399213793888 is 631833.6758103353
• The cube root of 399213793888 is 7363.2324842797

Scales and comparisons

• 399,213,793,888 seconds is equal to 12,693 years, 39 weeks, 5 days, 31 minutes, 28 seconds.
• To count from 1 to 399,213,793,888 would take you about twenty-five thousand, three hundred eighty-seven 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 399213793888 cubic inches would be around 613.6 feet tall.

Recreational maths with 399213793888

• 399213793888 backwards is 888397312993
• The number of decimal digits it has is: 12
• The sum of 399213793888's digits is 70
• More coming soon!