399491845168

Names of 399491845168

• Cardinal: 399491845168 can be written as Three hundred ninety-nine billion, four hundred ninety-one million, eight hundred forty-five thousand, one hundred sixty-eight.

Scientific notation

• Scientific notation: 3.99491845168 × 10¹¹

Factors of 399491845168

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 9284

Divisors of 399491845168

• Number of divisors d(n): 120
• Complete list of divisors:
  1 2 4 8 13 16 17 26 34 52 68 104 136 169 208 221 272 338 442 676 884 1061 1352 1768 2122 2704 2873 3536 4244 5746 8191 8488 11492 13793 16382 16976 18037 22984 27586 32764 36074 45968 55172 65528 72148 106483 110344 131056 139247 144296 179309 212966 220688 234481 278494 288592 358618 425932 468962 556988 717236 851864 937924 1113976 1384279 1434472 1703728 1810211 1875848 2227952 2768558 2868944 3048253 3620422 3751696 5537116 6096506 7240844 8690651 11074232 12193012 14481688 17381302 22148464 23532743 24386024 28963376 34762604 47065486 48772048 69525208 94130972 112978463 139050416 147741067 188261944 225956926 295482134 376523888 451913852 590964268 903827704 1181928536 1468720019 1807655408 1920633871 2363857072 2937440038 3841267742 5874880076 7682535484 11749760152 15365070968 23499520304 24968240323 30730141936 49936480646 99872961292 199745922584 399491845168
• Sum of all divisors σ(n): 888381997056
• Sum of proper divisors (its aliquot sum) s(n): 488890151888
• 399491845168 is an abundant number, because the sum of its proper divisors (488890151888) is greater than itself. Its abundance is 89398306720

Bases of 399491845168

• Binary: 101110100000011100100011100110000110000₂
• Hexadecimal: 0x5D0391CC30
• Base-36: 53IV4OJ4

Squares and roots of 399491845168

• 399491845168 squared (399491845168²) is 159593734355733284948224
• 399491845168 cubed (399491845168³) is 63756395415023523703639927104581632
• The square root of 399491845168 is 632053.6726956027
• The cube root of 399491845168 is 7364.9415777583

Scales and comparisons

• 399,491,845,168 seconds is equal to 12,702 years, 31 weeks, 3 days, 4 hours, 59 minutes, 28 seconds.
• To count from 1 to 399,491,845,168 would take you about twenty-five thousand, four 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 399491845168 cubic inches would be around 613.7 feet tall.

Recreational maths with 399491845168

• 399491845168 backwards is 861548194993
• The number of decimal digits it has is: 12
• The sum of 399491845168's digits is 67
• More coming soon!