31479420

Names of 31479420

• Cardinal: 31479420 can be written as Thirty-one million, four hundred seventy-nine thousand, four hundred twenty.

Scientific notation

• Scientific notation: 3.147942 × 10⁷

Factors of 31479420

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 569

Divisors of 31479420

• Number of divisors d(n): 96
• Complete list of divisors:
  1 2 3 4 5 6 7 10 12 14 15 20 21 28 30 35 42 60 70 84 105 140 210 241 311 420 482 622 723 933 964 1205 1244 1446 1555 1687 1866 2177 2410 2892 3110 3374 3615 3732 4354 4665 4820 5061 6220 6531 6748 7230 8435 8708 9330 10122 10885 13062 14460 16870 18660 20244 21770 25305 26124 32655 33740 43540 50610 65310 74951 101220 130620 149902 224853 299804 374755 449706 524657 749510 899412 1049314 1124265 1499020 1573971 2098628 2248530 2623285 3147942 4497060 5246570 6295884 7869855 10493140 15739710 31479420
• Sum of all divisors σ(n): 101477376
• Sum of proper divisors (its aliquot sum) s(n): 69997956
• 31479420 is an abundant number, because the sum of its proper divisors (69997956) is greater than itself. Its abundance is 38518536

Bases of 31479420

• Binary: 1111000000101011001111100₂
• Hexadecimal: 0x1E0567C
• Base-36: IQPOC

Squares and roots of 31479420

• 31479420 squared (31479420²) is 990953883536400
• 31479420 cubed (31479420³) is 31194653500473420888000
• The square root of 31479420 is 5610.6523684865
• The cube root of 31479420 is 315.7491867611

Scales and comparisons

• 31,479,420 seconds is equal to 1 year, 8 hours, 17 minutes.
• To count from 1 to 31,479,420 would take you about twenty-six weeks!

  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 31479420 cubic inches would be around 26.3 feet tall.

Recreational maths with 31479420

• 31479420 backwards is 02497413
• 31479420 is a Harshad number.
• The number of decimal digits it has is: 8
• The sum of 31479420's digits is 30
• More coming soon!